Surface layer plastering gypsum preparation device

Abstract

The invention relates to the technical field of plastering gypsum production, in particular to a surface plastering gypsum preparation device which comprises a cylinder and a discharge pipe, a first valve is mounted on the discharge pipe, a central shaft is mounted in the cylinder, a plurality of stirring rods are circumferentially arranged on the central shaft, a piston is mounted in the cylinder, and a scraper is arranged at one end, close to the cylinder, of each stirring rod. The scrapers, the stirring rods and the central shaft form a stirring mechanism; a feeding pipe and a water spraying pipe are fixed to the barrel, the end, away from the barrel, of the feeding pipe is connected with a fan, the top of the feeding pipe is connected with a first by-pass pipe, and a feeding groove is fixed to the end, not connected with the feeding pipe, of the first by-pass pipe. An air outlet and a filter screen are arranged on the barrel close to the top; when the piston moves to the highest position, a gap is formed between the stirring mechanism and the piston, and the feeding pipe, the water spraying pipe and the air outlet are all located between the piston and the stirring mechanism and close to the piston. According to the preparation device for the surface layer plastering gypsum, internal materials of the stirred and formed plastering gypsum are mixed more uniformly.

Description

Technical Field

[0001] The invention relates to the technical field of plastering gypsum production, in particular to a device for preparing surface plastering gypsum. Background Art

[0002] Plastering gypsum is generally divided into surface plastering gypsum, bottom plastering gypsum and lightweight plastering gypsum. According to the technical indicators, the flexural strength, compressive strength and tensile bonding strength of the surface plastering gypsum are better than those of the bottom plastering gypsum and lightweight plastering gypsum. Therefore, the production requirements for the surface plastering gypsum are relatively high.

[0003] The existing plastering gypsum is prepared by mixing various raw materials in a certain proportion and then adding them into water and stirring. In this way, when stirring, raw materials with high density are more likely to gather downward than raw materials with low density, resulting in uneven mixing of materials inside the stirred plastering gypsum, thereby affecting the flexural strength, compressive strength and tensile bonding strength of the plastering gypsum. Although the mixing uniformity of materials inside the stirred plastering gypsum can be improved to a certain extent by turning it upside down, the effect is not ideal. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides a surface plastering gypsum preparation device to solve at least one of the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution provided by the present invention is as follows: A surface plaster gypsum preparation device comprises a cylinder and a discharge pipe arranged at the bottom of the cylinder, a first valve is installed on the discharge pipe, a central axis which can rotate relative to the cylinder is installed in the cylinder, a plurality of stirring rods are circumferentially arranged on the central axis, a piston which can move up and down along the cylinder is installed in the cylinder, a scraper is arranged at one end of the stirring rod close to the cylinder, and the scraper, the stirring rod and the central axis form a stirring mechanism; a feed pipe and a water spray pipe are fixed at a position close to the top of the cylinder, a fan is connected to one end of the feed pipe away from the cylinder, a first bypass pipe is connected to the top of the feed pipe, and a feed trough is fixed at one end of the first bypass pipe which is not connected to the feed pipe; an exhaust port and a filter screen for shielding the exhaust port are arranged at a position close to the top of the cylinder; when the piston moves to the highest position: there is a spacing between the stirring mechanism and the piston, and the feed pipe, the water spray pipe and the exhaust port are all located between the piston and the stirring mechanism and close to the piston.

[0006] Preferably, the filter is arranged on the outside of the cylinder and is detachably connected to the cylinder.

[0007] Preferably, a water mist nozzle connected to the interior of the cylinder is embedded in a position on the cylinder corresponding to the water spray pipe, and the water spray pipe is connected to the water mist nozzle; a second bypass pipe is provided on the water spray pipe, and a second valve is installed on the second bypass pipe; a water inlet hole connected to the interior of the cylinder is provided on the cylinder corresponding to the second bypass pipe, and the second bypass pipe is connected to the water inlet hole.

[0008] Preferably, the plurality of stirring rods are arranged along the circumference of the central axis and in rows in the vertical direction, and a scraper is fixed on each row of stirring rods; the scraper has the same height as the central axis.

[0009] Preferably, each row of the stirring rods includes a first stirring rod and a second stirring rod, the length of the first stirring rod is greater than the length of the second stirring rod, and the first stirring rod and the second stirring rod are arranged at intervals; the scraper is connected to the first stirring rod, and an extension portion extending in the direction of the second stirring rod is provided on the scraper at a position corresponding to the second stirring rod, and the width of the extension portion is greater than the diameter of the second stirring rod, wherein the width of the extension portion refers to the distance from the bottom end of the extension portion to the top end of the extension portion.

[0010] Preferably, a motor for driving the central shaft to rotate is installed on the cylinder.

[0011] Preferably, the motor is fixed on the bottom surface of the cylinder.

[0012] Preferably, a hydraulic cylinder is connected to the top of the piston, and the hydraulic cylinder is fixed on a bracket, on which a support plate for supporting the fan and a support frame for supporting the feed pipe are installed.

[0013] Preferably, the first bypass pipe is inclined, and the height of one end close to the fan is greater than the height of the other end.

[0014] When the surface layer plastering gypsum preparation device provided by the present invention is used, the piston is initially located at the highest position, and the powdered preparation raw materials of the plastering gypsum can fall into the feed pipe through the feed trough via the first bypass pipe, and the fan blows the fallen raw materials into the cylinder body at the side. At this time, the water spraying pipe sprays water while the rotating shaft drives the scraper to rotate to generate air flow disturbance, so that the raw materials and water droplets collide and mix at the upper part of the cylinder body. After the raw materials are transported, the hydraulic cylinder is controlled to press the piston downward, which increases the activity of the molecules and accelerates the falling speed of the raw materials. When the raw materials fall to the position of the stirring mechanism, the stirring mechanism stirs them for the second time to finally form the plastering gypsum; after the plastering gypsum is formed, the first valve is opened to control the hydraulic cylinder to fall until it is close to the position of the stirring mechanism to assist the discharge of the plastering gypsum, and when the piston falls, the plastering gypsum on the upper part of the cylinder body can be scraped off, and the rotation of the central axis drives the scraper to scrape off the plastering gypsum on the lower part of the cylinder body, so that the plastering gypsum is not easy to remain in the cylinder body. It can be seen that when the surface plastering gypsum preparation device of the present application prepares the surface plastering gypsum, the mixing and stirring process is mainly completed in the falling state in the upper space of the cylinder, and the water is mixed with the raw materials mainly in the form of water droplets. Compared with the method of directly adding the raw materials into the water and stirring, it effectively avoids the situation where the raw materials with high density are more likely to gather downwards than the raw materials with low density, so that the internal materials of the stirred plastering gypsum are mixed more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The schematic diagram of the structure of the surface plastering gypsum preparation device in the embodiment is shown; Figure 2 Shows Figure 1 A magnified view at point A; Figure 3 A schematic structural diagram of a stirring mechanism is shown; Markings in the accompanying drawings: Cylinder 100, discharge pipe 101, first valve 102, central axis 103, stirring rod 104, first stirring rod 104-1, second stirring rod 104-2, piston 105, scraper 106, extension portion 106-1, feed pipe 107, fan 108, bypass pipe 109, feed trough 110, water spray pipe 111, motor 112, filter 113, water mist nozzle 114, second bypass pipe 115, second valve 116, water inlet hole 117, hydraulic cylinder 118, bracket 119, support plate 120, support frame 121. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0017] For examples, see Figure 1 The present application provides a surface plaster gypsum preparation device, including a cylinder 100 and a discharge pipe 101 arranged at the bottom of the cylinder, a first valve 102 is installed on the discharge pipe, a central axis 103 that can rotate relative to the cylinder is installed in the cylinder, and the central axis is generally connected to a motor 112, and the central axis is driven to rotate by the motor. The motor can be installed in the cylinder or outside the cylinder, which is well known to those skilled in the art. In this embodiment, the motor is preferably fixed on the bottom surface of the cylinder; a plurality of stirring rods 104 are circumferentially arranged on the central axis, and a piston 105 that can move up and down along the cylinder is installed in the cylinder, wherein a hydraulic cylinder 118 is connected to the top of the piston to drive the piston to move up and down, and the hydraulic cylinder is fixed on a bracket 119, wherein the bracket can be arranged separately on the bottom surface, or can be fixed on the cylinder, which is not specifically limited here; the bracket can also be installed A support plate 120 for supporting the fan and a support frame 121 for supporting the feed pipe are provided, wherein the support frame can be a triangular support frame, a support pipe, etc.; a scraper 106 is provided at one end of the stirring rod close to the cylinder, and the scraper, the stirring rod and the central axis form a stirring mechanism; a feed pipe 107 and a water spray pipe 111 are fixed near the top of the cylinder, and a fan 108 is connected to the end of the feed pipe away from the cylinder, and a first bypass pipe 109 is connected to the top of the feed pipe, and a feed trough 110 is fixed to the end of the first bypass pipe not connected to the feed pipe; an exhaust port and a filter screen 113 for shielding the exhaust port are provided near the top of the cylinder; when the piston moves to the highest position: there is a distance between the stirring mechanism and the piston, and the feed pipe, the water spray pipe and the exhaust port are all located between the piston and the stirring mechanism and close to the piston.

[0018] When the above-mentioned surface layer plastering gypsum preparation device is in use, the piston is initially located at the highest position, and the powdered preparation raw materials of the plastering gypsum can fall into the feed pipe through the feed trough via the first bypass pipe, and the fan blows the fallen raw materials into the cylinder from the side. At this time, the water spraying pipe sprays water while the rotating shaft drives the scraper to rotate to generate air flow disturbance, so that the raw materials and water droplets collide and mix at the upper part of the cylinder. After the raw materials are transported, the hydraulic cylinder is controlled to press the piston downward, which increases the activity of the molecules and accelerates the falling speed of the mixed raw materials. When the raw materials fall to the position of the stirring mechanism, the stirring mechanism stirs them for the second time to finally form plastering gypsum; after the plastering gypsum is formed, the first valve is opened to control the hydraulic cylinder to fall until it is close to the position of the stirring mechanism to assist in the discharge of the plastering gypsum. When the piston falls, the plastering gypsum on the upper part of the cylinder can be scraped off, and the rotation of the central axis drives the scraper to scrape off the plastering gypsum on the lower part of the cylinder, so that the plastering gypsum is not easy to remain in the cylinder. It should be noted that the feed trough and the first bypass pipe can be set as one group to feed pre-mixed powdered raw materials, or multiple groups can be set, and different raw materials can be fed separately into the cylinder to complete mixing together with water droplets. No specific limitation is made here.

[0019] From the above, it can be seen that when the surface plastering gypsum preparation device of the present application prepares the surface plastering gypsum, the mixing and stirring process is mainly completed in the falling state in the upper space of the cylinder, and the water is mixed with the raw materials mainly in the form of water droplets. Compared with the method of directly adding the raw materials into the water and stirring, it effectively avoids the situation that the raw materials with high density are more likely to gather downwards than the raw materials with low density, so that the internal materials of the stirred plastering gypsum are mixed more evenly.

[0020] In actual production, the first bypass pipe is preferably inclined, with the height of one end close to the fan being greater than the height of the other end, and a general inclination angle may be about 45°-60° relative to the horizontal plane.

[0021] As a preferred implementation, see Figure 2 , a water mist nozzle 114 connected to the inside of the cylinder is embedded in the position corresponding to the water spray pipe on the cylinder, and the water spray pipe is connected to the water mist nozzle; a second bypass pipe 115 is arranged on the water spray pipe, and a second valve 116 is installed on the second bypass pipe; a water inlet 117 connected to the inside of the cylinder is arranged at the position corresponding to the second bypass pipe on the cylinder, and the second bypass pipe is connected to the water inlet; the filter is arranged on the outside of the cylinder and is detachably connected to the cylinder. When the structure is in use, the exhaust hole can be used as a feed port for feeding by removing the filter while having the function of exhausting air, and water can be quickly injected into the cylinder by opening the second valve, so as to produce gypsum in the existing way, which meets the production requirements with lower requirements on the flexural strength, compressive strength and tensile bonding strength of gypsum. In the actual production of plastering gypsum, the second bypass pipe can also be used as a spare water supply pipe.

[0022] As a preferred implementation, see Figure 1 and Figure 3 , a plurality of stirring rods are arranged along the circumference of the central axis and arranged in rows in the vertical direction, generally three rows can be arranged, a scraper is fixed on each row of stirring rods; the scraper and the central axis have the same height; each row of stirring rods includes a first stirring rod 104-1 and a second stirring rod 104-2, the length of the first stirring rod is greater than the length of the second stirring rod, and the first stirring rod and the second stirring rod are arranged at intervals; the scraper is connected to the first stirring rod, and an extension portion 106-1 extending in the direction of the second stirring rod is arranged on the scraper at a position corresponding to the second stirring rod, the width of the extension portion is greater than the diameter of the second stirring rod, wherein the width of the extension portion refers to the distance from the bottom end of the extension portion to the top end of the extension portion. This structure can increase the effect of the scraper turbulence when the central axis rotates by setting the extension portion on the scraper. In addition, when the gypsum raw material is stirred, the raw material is driven to rotate while the second stirring rod and the second stirring rod are separated at different positions, so the stirring effect is better.

[0023] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0024] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0025] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0026] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface plastering gypsum preparation device, comprising a cylinder (100) and a discharge pipe (101) arranged at the bottom of the cylinder, the discharge pipe being provided with a first valve (102), a central shaft (103) being provided in the cylinder and capable of rotating relative to the cylinder, a plurality of stirring rods (104) being circumferentially arranged on the central shaft, characterized in that: A piston (105) capable of moving up and down along the cylinder is installed in the cylinder, a scraper (106) is provided at one end of the stirring rod close to the cylinder, and the scraper, the stirring rod and the central axis form a stirring mechanism; A feed pipe (107) and a water spray pipe (111) are fixed near the top of the cylinder, an end of the feed pipe away from the cylinder is connected to a fan (108), a first bypass pipe (109) is connected to the top of the feed pipe, and a feed trough (110) is fixed to the end of the first bypass pipe not connected to the feed pipe; An air outlet and a filter (113) for shielding the air outlet are provided on the cylinder body at a position close to the top; When the piston moves to the highest position: there is a distance between the stirring mechanism and the piston, and the feed pipe, the water spray pipe and the exhaust port are all located between the piston and the stirring mechanism and close to the piston.

2. A surface plastering gypsum preparation device according to claim 1, characterized in that: The filter screen is arranged on the outside of the cylinder and is detachably connected to the cylinder.

3. A surface plastering gypsum preparation device according to claim 1, characterized in that: A water mist nozzle (114) in communication with the interior of the cylinder is embedded in the cylinder at a position corresponding to the water spray pipe, and the water spray pipe is in communication with the water mist nozzle; The water spray pipe is provided with a second bypass pipe (115), the second bypass pipe is installed with a second valve (116), the cylinder is provided with a water inlet hole (117) communicating with the interior of the cylinder at a position corresponding to the second bypass pipe, and the second bypass pipe is communicated with the water inlet hole.

4. A surface plastering gypsum preparation device according to claim 1, characterized in that: A plurality of stirring rods are arranged along the circumference of the central axis and arranged in rows in the vertical direction, and a scraper is fixed on each row of stirring rods; The scraper and the central axis are at the same height.

5. A surface plastering gypsum preparation device according to claim 4, characterized in that: Each row of stirring rods comprises a first stirring rod (104-1) and a second stirring rod (104-2), the length of the first stirring rod is greater than the length of the second stirring rod, and the first stirring rod and the second stirring rod are arranged at an interval; The scraper is connected to the first stirring rod, and an extension portion (106-1) extending in the direction of the second stirring rod is provided on the scraper at a position corresponding to the second stirring rod, and the width of the extension portion is greater than the diameter of the second stirring rod, wherein the width of the extension portion refers to the distance from the bottom end of the extension portion to the top end of the extension portion.

6. A surface plastering gypsum preparation device according to claim 1, characterized in that: The cylinder is provided with a motor (112) for driving the central shaft to rotate.

7. A surface plastering gypsum preparation device according to claim 6, characterized in that: The motor is fixed on the bottom surface of the cylinder.

8. A surface plastering gypsum preparation device according to claim 1, characterized in that: The top of the piston is connected to a hydraulic cylinder (118), and the hydraulic cylinder is fixed on a bracket (119), on which a support plate (120) for supporting the fan and a support frame (121) for supporting the feed pipe are mounted.

9. A surface plastering gypsum preparation device according to claim 1, characterized in that: The first bypass pipe is inclined, and the height of one end close to the fan is greater than the height of the other end.

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