Preparation device of magnesium oxide slurry

Abstract

The utility model discloses a preparation device of magnesium oxide slurry. Comprising a lower tank body, a middle tank body fixedly connected to the upper end of the lower tank body, an upper tank body fixedly connected to the upper end of the middle tank body, a plurality of supporting blocks fixedly connected to the lower end of the lower tank body, a first cover plate fixedly connected to the inner wall of the upper end of the upper tank body, a feeding mechanism arranged on the first cover plate, a bottom plate arranged outside the lower tank body and a liquid injection mechanism arranged on the bottom plate. The discharging mechanism is arranged at the lower end of the lower tank body, the stirring mechanism is arranged on the first cover plate, the dispersing mechanism is arranged on the stirring mechanism, and the vertical moving mechanism is arranged in the middle tank body. The device disclosed by the utility model has the advantages of being capable of realizing integrated ordered mixing, good in dispersion effect, and uniform and controllable in heating.

Description

Technical Field

[0001] This utility model relates to the technical field of inorganic non-metallic material preparation equipment, specifically a magnesium oxide slurry preparation device. Background Technology

[0002] Magnesium oxide slurry, as an important industrial raw material, is widely used in refractory materials, electronic ceramics, and environmental adsorption fields. Its preparation quality directly affects the performance of the final product.

[0003] Currently, industrial-scale preparation mostly uses conventional stirred tanks. However, existing stirring equipment is mostly a single-layer tank structure with limited functionality. When powder raw materials are added at once, dust is easily generated, and after falling onto the liquid surface, uneven wetting can lead to surface agglomeration or bottom aggregation, resulting in low initial dispersion efficiency. Secondly, the stirring method is often limited to single-axis stirring. For slurries with high solids content and easy settling, it is difficult to achieve synergy between the axial and radial flow fields of the tank, resulting in mixing dead zones and poor slurry uniformity. In addition, traditional heating methods mostly use fixed jackets, which have uneven heat transfer efficiency. For dispersion or surface modification processes that require precise temperature control, it is difficult to achieve rapid and uniform heating or heat preservation, affecting slurry stability. Furthermore, existing equipment usually lacks a pretreatment unit for powder addition, resulting in insufficient and orderly contact and mixing between powder and liquid, which restricts the efficiency and consistency of high-quality slurry preparation.

[0004] Therefore, there is an urgent need for an integrated magnesium oxide slurry preparation device that can achieve orderly feeding, enhanced dispersion, uniform heating, and adapt to the needs of different process stages, in order to overcome the above-mentioned technical defects. Utility Model Content

[0005] The purpose of this invention is to provide a device for preparing magnesium oxide slurry, which has the advantages of achieving integrated and orderly mixing, good dispersion effect, uniform and controllable heating, and solves the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A magnesium oxide slurry preparation apparatus includes a lower tank, a middle tank fixed to the upper end of the lower tank, an upper tank fixed to the upper end of the middle tank, a plurality of support blocks fixed to the lower end of the lower tank, a first cover plate fixed to the inner wall of the upper end of the upper tank, a feeding mechanism disposed on the first cover plate, a bottom plate disposed outside the lower tank, a liquid injection mechanism disposed on the bottom plate, a feeding mechanism disposed at the lower end of the lower tank, a stirring mechanism disposed on the first cover plate, a dispersing mechanism disposed on the stirring mechanism, and a vertical moving mechanism disposed inside the middle tank.

[0008] Part of the water inlet end of the water inlet mechanism is oriented towards the dispersing mechanism;

[0009] The middle tank body and the upper tank body are provided with a water inlet mechanism, and the water outlet end of the liquid injection mechanism is connected to the water inlet end of the water inlet mechanism through a pipeline.

[0010] The inner wall of the middle tank body is provided with a plurality of first grooves, the first grooves are in communication with the interiors of the upper tank body and the lower tank body.

[0011] Preferably, the feeding mechanism comprises a feeding pipe penetratingly and fixedly connected to the upper end of the first cover plate, a feeding tank fixedly connected to the upper end of the feeding pipe, and a first valve body arranged on the feeding pipe.

[0012] Notably, the feeding mechanism realizes controllable feeding of the powdered magnesium oxide raw material through the feeding pipe and the feeding tank provided with the first valve body, effectively avoids the problem of dust flying caused by one-time large feeding, improves the working environment, and adjusts the falling speed and flow of the raw material by controlling the opening degree of the first valve body, so that the powder can fall into the lower dispersion mechanism in a more uniform and continuous manner, which is beneficial to the subsequent dispersion and wetting process.

[0013] Preferably, the stirring mechanism comprises a first motor fixedly connected to the upper end of the first cover plate, an upper rotating rod fixedly connected to the lower end of the output shaft of the first motor, a lower rotating rod fixedly connected to the lower end of the upper rotating rod, an auger fixedly connected to the upper part of the outer peripheral wall of the lower rotating rod, and a scraping block fixedly connected to the lower part of the outer peripheral wall of the lower rotating rod, the lower end of the scraping block being in abutment with the bottom surface of the inner wall of the lower tank body.

[0014] Notably, the stirring mechanism adopts an integrated design of the upper rotating rod, the lower rotating rod, the auger and the scraping block, realizes multi-level and all-round stirring effect, the auger mainly acts on the middle tank body and the upper tank body area, can generate strong axial conveying force to lift the slurry in the middle and lower parts upward, form strong upward and downward circulation convection, effectively break the sedimentation trend and eliminate stratification; the lower rotating rod and the scraping block focus on the bottom area of the lower tank body, the scraping block rotates closely to the tank bottom, can forcibly scrape and disturb the possible deposited solid particles, and prevent the formation of dead corners that are difficult to mix at the tank bottom.

[0015] Preferably, the dispersion mechanism comprises a receiving disc rotatably installed on the outer peripheral wall of the upper rotating rod, a plurality of discharge grooves penetratingly provided in the lower end of the receiving disc, a plurality of fixing blocks fixedly connected to the outer peripheral wall of the receiving disc, a rotating disc rotatably installed on the lower part of the outer peripheral wall of the upper rotating rod, a plurality of second grooves penetratingly provided in the outer peripheral wall of the rotating disc, and a plurality of third grooves penetratingly provided in the lower end of the rotating disc, the upper end surface of the rotating disc being in abutment with the lower end surface of the receiving disc.

[0016] It is worth noting that the powder falling from the feeding pipe is first received by the receiving disc, and at the same time, it is impacted by the jet flow from the water inlet mechanism, which realizes the preliminary wetting and dispersion of the powder. The wetted material falls into the rotary disc through the discharge chute, and the rotary disc may rotate or vibrate under the action of fluid impact force or slight friction force, so that the material falls in a more dispersed state after being screened and distributed by the second and third groove bodies.

[0017] Preferably, the liquid injection mechanism includes a liquid storage tank fixed to the upper end of the bottom plate and a water pump, and the water inlet end of the water pump is connected to the water outlet end of the liquid storage tank through a pipeline.

[0018] It is worth noting that the liquid storage tank can pre-store a sufficient amount of dispersion medium (such as deionized water or aqueous solution containing additives), and the water pump can pump the liquid into the water inlet mechanism at a certain pressure and flow rate according to the process requirements, realizing controllable and continuous supply of liquid, ensuring that the initial wetting of the powder and the subsequent supplement of the liquid to adjust the solid content can be supplied timely and accurately during the whole slurry preparation process, providing a basic guarantee for the automation and stability of the whole preparation process.

[0019] Preferably, the water inlet mechanism includes two first fixed pipes penetratingly fixed to the outer peripheral wall of the upper tank body, a third valve body arranged on each first fixed pipe, a second fixed pipe penetratingly fixed to the outer peripheral wall of the middle tank body, a first connecting pipe arranged on the water inlet end of the second fixed pipe, and a fourth valve body arranged on the first connecting pipe. The water outlet end of the water pump is connected with an injection pipe through a pipeline, the water outlet end of the injection pipe is fixed to the water inlet end of one of the first fixed pipes, and the injection pipe and the other first fixed pipe are jointly connected with a second connecting pipe. The water inlet end of the first connecting pipe and the second connecting pipe are interconnected, the fifth valve body is arranged on the second connecting pipe, and the water outlet end of the first fixed pipe faces the fixed block.

[0020] It is worth noting that the water inlet mechanism adopts a multi-layer and multi-path adjustable liquid distribution design, realizing the diversity and flexibility of liquid introduction. By operating different valve combinations, various liquid injection modes can be realized. The path to the first fixed pipe can be opened separately to make the liquid directly impact the fixed block and the powder on the dispersion mechanism in the form of a jet, realizing powerful pre-wetting and preliminary mixing. The liquid can also be directly introduced into the middle part of the middle tank body through the second fixed pipe to realize rapid liquid supplement or different area liquid injection. The presence of the first groove body ensures the communication between the upper tank body and the middle tank body in terms of liquid.

[0021] Preferably, the discharging mechanism includes a discharge tank penetratingly fixed to the lower end of the lower tank body and a second valve body arranged on the discharge tank.

[0022] It is worth noting that the prepared magnesium oxide slurry can be collected at the bottom of the lower tank body by gravity after the stirring is stopped, and the slurry can be smoothly and quickly discharged by opening the second valve body on the discharge tank, so that the next step of processing or filling can be conveniently collected.

[0023] Preferably, the vertical moving mechanism comprises a bearing ring fixed to the upper portion of the inner wall of the middle tank body, a second cover plate threadedly installed on the inner wall of the upper end of the middle tank body, a second motor fixed to the upper end of the second cover plate, a screw rod fixed to the lower end of the output shaft of the second motor, a first electric heating ring arranged in the middle tank body, a plurality of connecting blocks fixed to the outer peripheral wall of the first electric heating ring, a second electric heating ring fixed to the end of the plurality of connecting blocks away from the first electric heating ring, a threaded sleeve fixed to one of the connecting blocks in a penetrating manner, a limiting hole penetratingly arranged in another connecting block, and a guide column fixed to the lower end of the second cover plate, the lower end of the second cover plate and the upper end of the bearing ring are in abutment, the outer peripheral wall of the limiting hole and the inner wall of the guide column are in abutment, and the outer peripheral wall of the screw rod and the inner wall of the threaded sleeve are threadedly connected.

[0024] It is worth noting that the first and second electric heating rings connected by the threaded sleeve and the connecting blocks are driven to move vertically along the direction defined by the guide column by rotating the screw rod driven by the second motor, which enables the heating area to be adjusted from mainly acting on the middle tank body to mainly acting on the lower tank body, or remaining between the two, realizing the capability of targeted heating of the slurry layers at different heights in the tank body, and when uniform heating is required, the heating ring can be moved to the middle part, and when it is required to maintain the temperature of the bottom slurry to prevent sedimentation or promote reaction, the heating ring can be lowered, overcoming the shortcomings of large axial temperature gradient and uneven heat transfer of the traditional fixed jacket heating, significantly improving the heat efficiency and the precision control capability of the process temperature, and being particularly suitable for the dispersion, curing or surface modification process stages sensitive to temperature.

[0025] Compared with the prior art, the utility model has the advantages of the following:

[0026] 1、The utility model discloses a feeding mechanism which is composed of a feeding pipe, a feeding tank and a first valve body, realizes controllable and continuous feeding of magnesium oxide powder, avoids dust flying, and the powder first falls on the receiving disc of the dispersion mechanism, at this time, the liquid sprayed from the first fixed pipe of the water feeding mechanism directly impacts the powder and the fixed block on the receiving disc, and the strong pre-wetting is completed in the rotating revolution state, the agglomeration is preliminarily broken up, then the material falls to the rotating disc through the discharge chute, and further disperses through the second groove and the third groove on the rotating disc and then falls, which effectively solves the problems of easy caking and uneven wetting of the powder in the prior art, and significantly improves the initial dispersion efficiency.

[0027] 2. The stirring mechanism of the utility model drives the upper and lower rotating rods to rotate synchronously through the first motor, realizes composite stirring, the auger in the upper part generates strong axial lifting force, forces the slurry in the middle and lower part to move upwards, forms strong vertical circulation convection, the scraping block in the lower part rotates closely to the bottom surface of the lower tank body, completely sweeps and disturbs the possible deposited particles, eliminates the stirring dead zone, ensures the uniformity of the slurry from the top to the bottom of the tank body, solves the problems of uneven mixing and stratification;

[0028] 3. The utility model discloses a unique vertical moving mechanism, which realizes dynamic adjustment of the heating area, the second motor drives the screw rod to rotate, drives the first and second electric heating rings connected through the threaded sleeve and the connecting block to stably ascend and descend along the guide column, can according to the process needs, the heating ring stays in the middle tank body area and uniformly heats as a whole, or descends to the lower tank body area and focuses on the heat preservation of the bottom slurry, this adjustable heating mode overcomes the uneven heating of the fixed jacket, realizes accurate and efficient control of the slurry temperature, meets the temperature control needs of different process stages, and improves the stability of the slurry.

[0029] 4. The utility model discloses a controllable feeding, dynamic pre-dispersion, three-dimensional stirring and adjustable heating function module are integrated in the integrated device formed by the multilayer tank body, and each mechanism cooperates to make the whole process of powder from adding to forming the final slurry orderly and efficiently, and has good practical value. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0031] Figure 2 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0032] Figure 3 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0033] Figure 4 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0034] Figure 5 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0035] Figure 6 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0036] Figure 7 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0037] Figure 8 The utility model discloses a three-dimensional structure schematic diagram is shown.

[0038] 1, lower tank body; 2, middle tank body; 3, upper tank body; 4, support block; 5, first cover plate; 51, feeding pipe; 52, feeding tank; 53, first valve body; 6, bottom plate; 7, liquid injection mechanism; 71, liquid storage tank; 72, water pump; 8, discharge tank; 81, second valve body; 9, first motor; 10, upper rotating rod; 11, lower rotating rod; 12, auger; 13, scraper block; 14, bearing ring; 15, second cover plate; 16, second motor; 17, screw rod; 18, first electric heating ring; 19, connecting block; 20, second electric heating ring; 21, threaded sleeve; 22, limiting hole; 23, guide column; 24, first groove body; 25, material receiving disc; 26, discharging groove; 27, fixing block; 28, rotating disc; 29, second groove body; 30, third groove body; 31, first fixed pipe; 32, third valve body; 33, second fixed pipe; 34, first connecting pipe; 35, fourth valve body; 36, injection pipe; 37, second connecting pipe; 38, fifth valve body. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In order to solve the problems of easy dust raising and caking, poor uniformity caused by dead zones in mixing, uneven efficiency of fixed heating mode, and lack of powder pre-dispersion treatment function in the prior art, the following technical solutions are given. Please refer to Figures 1-8 ;

[0041] Embodiment 1: A preparation device of magnesium oxide slurry, comprising a lower tank body 1, a middle tank body 2 fixedly connected to the upper end of the lower tank body 1, an upper tank body 3 fixedly connected to the upper end of the middle tank body 2, a plurality of support blocks 4 fixedly connected to the lower end of the lower tank body 1, a first cover plate 5 fixedly connected to the inner wall of the upper end of the upper tank body 3, a feeding mechanism arranged on the first cover plate 5, a bottom plate 6 arranged outside the lower tank body 1, a liquid injection mechanism 7 arranged on the bottom plate 6, a discharging mechanism arranged at the lower end of the lower tank body 1, a stirring mechanism arranged on the discharging mechanism, a dispersion mechanism arranged on the stirring mechanism, and a vertical moving mechanism arranged in the middle tank body 2.

[0042] Part of the water inlet end of the water inlet mechanism is arranged towards the dispersion mechanism;

[0043] The middle tank body 2 and the upper tank body 3 are provided with a water inlet mechanism in common, and the water outlet end of the liquid injection mechanism 7 is connected to the water inlet end of the water inlet mechanism through a pipeline;

[0044] A plurality of first grooves 24 are formed through the inner wall of the middle tank body 2, and the first grooves 24 are in communication with the interiors of the upper tank body 3 and the lower tank body 1.

[0045] In use, the solution is injected into the middle tank body 2 and the upper tank body 3 by the liquid injection mechanism 7, and the stirring mechanism on the first cover plate 5 is opened to stir the cavity formed by the lower tank body 1, the middle tank body 2 and the upper tank body 3, and the powder solid raw materials are injected by the feeding mechanism, which fall onto the dispersion mechanism and then fall into the lower tank body 1 under the rotation, so as to realize the mixing of the solution, and then all the raw materials are mixed by the stirring mechanism, so as to realize the rapid preparation of the magnesium oxide slurry, and after the preparation is completed, the discharging mechanism is opened to discharge.

[0046] In this embodiment, specifically, the feeding mechanism comprises a feeding pipe 51 fixedly connected to the upper end of the first cover plate 5, a feeding tank 52 fixedly connected to the upper end of the feeding pipe 51, and a first valve body 53 arranged on the feeding pipe 51.

[0047] In this embodiment, specifically, the stirring mechanism comprises a first motor 9 fixedly connected to the upper end of the first cover plate 5, an upper rotating rod 10 fixedly connected to the lower end of the output shaft of the first motor 9, a lower rotating rod 11 fixedly connected to the lower end of the upper rotating rod 10, a auger 12 fixedly connected to the upper part of the outer peripheral wall of the lower rotating rod 11, and a scraping block 13 fixedly connected to the lower part of the outer peripheral wall of the lower rotating rod 11, and the lower end of the scraping block 13 is in abutment with the bottom surface of the inner wall of the lower tank body 1.

[0048] In this embodiment, specifically, the dispersion mechanism comprises a receiving disc 25 rotatably mounted on the outer peripheral wall of the upper rotating rod 10, a plurality of discharging grooves 26 formed through the lower end of the receiving disc 25, a plurality of fixing blocks 27 fixedly connected to the outer peripheral wall of the receiving disc 25, a rotating disc 28 rotatably mounted on the lower part of the outer peripheral wall of the upper rotating rod 10, a plurality of second grooves 29 formed through the outer peripheral wall of the rotating disc 28, and a plurality of third grooves 30 formed through the lower end of the rotating disc 28, and the upper end surface of the rotating disc 28 is in abutment with the lower end surface of the receiving disc 25.

[0049] In this embodiment, specifically, the liquid injection mechanism 7 comprises a liquid storage tank 71 fixedly connected to the upper end of the bottom plate 6 and a water pump 72, and the water inlet end of the water pump 72 is connected to the water outlet end of the liquid storage tank 71 through a pipeline.

[0050] In this embodiment, specifically: the water inlet mechanism includes two first fixed pipes 31 penetratingly fixed on the outer peripheral wall of the upper tank body 3, a third valve body 32 arranged on each first fixed pipe 31, a second fixed pipe 33 penetratingly fixed on the outer peripheral wall of the middle tank body 2, a first connecting pipe 34 arranged on the water inlet end of the second fixed pipe 33, and a fourth valve body 35 arranged on the first connecting pipe 34. The water outlet end of the water pump 72 is connected with an injection pipe 36 through a pipeline. The water outlet end of the injection pipe 36 is fixed on the water inlet end of one of the first fixed pipes 31. The injection pipe 36 and the other first fixed pipe 31 are jointly connected with a second connecting pipe 37. The water inlet end of the first connecting pipe 34 and the second connecting pipe 37 are interconnected. The second connecting pipe 37 is provided with a fifth valve body 38. The water outlet end of the first fixed pipe 31 faces the fixed block 27.

[0051] In this embodiment, specifically: the discharging mechanism includes a discharging tank 8 penetratingly fixed on the lower end of the lower tank body 1 and a second valve body 81 arranged on the discharging tank 8.

[0052] In this embodiment, based on example 1, specifically: the vertical moving mechanism includes a bearing ring 14 fixed on the inner wall of the upper end of the middle tank body 2, a second cover plate 15 screw-installed on the inner wall of the upper end of the middle tank body 2, a second motor 16 fixed on the upper end of the second cover plate 15, a screw rod 17 fixed on the lower end of the output shaft of the second motor 16, a first electric heating ring 18 arranged in the middle tank body 2, a plurality of connecting blocks 19 fixed on the outer peripheral wall of the first electric heating ring 18, a second electric heating ring 20 fixed on the end of the plurality of connecting blocks 19 away from the first electric heating ring 18, a threaded sleeve 21 penetratingly fixed on one of the connecting blocks 19, a limiting hole 22 penetratingly arranged on the other connecting block 19, and a guide column 23 fixed on the lower end of the second cover plate 15. The lower end of the second cover plate 15 and the upper end of the bearing ring 14 are attached. The outer peripheral wall of the limiting hole 22 and the inner wall of the guide column 23 are attached. The outer peripheral wall of the screw rod 17 and the inner wall of the threaded sleeve 21 are threadedly connected.

[0053] Working principle: when in use, first, start the water pump 72 of the liquid injection mechanism 7 to pump the liquid in the liquid storage tank 71 into the water inlet mechanism through the injection pipe 36;

[0054] By operating the third valve body 32, the fourth valve body 35, and the fifth valve body 38, the liquid injection mode can be flexibly selected. For example, when strong pre-dispersion is needed, the third valve body 32 on one of the first fixed pipes 31 is opened, and the fourth valve body 35 and the fifth valve body 38 are closed. The liquid is sprayed in the form of a jet from the water outlet end of the first fixed pipe 31, directly impacting the fixed block 27 of the dispersion mechanism.

[0055] If it is necessary to directly supplement liquid into the middle tank 2, the fourth valve body 35 can be opened and the relevant third valve body 32 can be closed, since the water inlet end of the first connecting pipe 34 is communicated with the second connecting pipe 37, the liquid will be directly injected into the middle tank 2 through the first connecting pipe 34 and the second fixed pipe 33;

[0056] At the same time, the first motor 9 on the first cover plate 5 is opened to drive the upper rotating rod 10, the lower rotating rod 11 and the auger 12 and the scraping block 13 mounted thereon to rotate together;

[0057] Then, the first valve body 53 on the feeding pipe 51 in the feeding mechanism is opened, so that the magnesium oxide powder stored in the feeding tank 52 falls onto the rotating receiving disc 25 below according to the controlled flow, the falling powder is immediately impacted and preliminarily wetted by the liquid flow from the first fixed pipe 31, and is further dispersed in the process of the receiving disc 25 co-rotating with the upper rotating rod 10;

[0058] The preliminarily wetted material then falls through the discharging groove 26 on the receiving disc 25 into the rotating disc 28 attached thereto, and falls into the tank body space filled with liquid below in a more dispersed state through the second groove 29 and the third groove 30 on the rotating disc 28;

[0059] At this time, the rotating auger 12 generates strong axial lifting force, which promotes the upward movement of the slurry in the middle tank 2 and the lower tank 1, forming strong upward and downward circulation convection, while the scraping block 13 rotates closely to the bottom surface of the lower tank 1, completely scraping the possible deposited particles, and this combined stirring action ensures the uniform mixing of the slurry in the whole tank;

[0060] When the process requires heating or heat preservation, the second motor 16 of the vertical moving mechanism can be started to drive the screw rod 17 to rotate, and then drive the first electric heating ring 18 and the second electric heating ring 20 connected by the connecting block 19 to stably ascend or descend along the direction defined by the guide column 23 through the threaded sleeve 21 connected therewith in screw, so as to accurately adjust the heating area to the required height, and realize the targeted temperature control of the specific slurry layer;

[0061] The liquid communication between the tank bodies is realized through the first groove 24 to ensure the mixing uniformity; after the preparation of the slurry is completed, the first motor 9 and other operating components are closed, and the second valve body 81 on the discharging tank 8 of the discharging mechanism is opened, so that the finished slurry can be discharged.

[0062] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0063] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application.

Claims

1. An apparatus for preparing a magnesium oxide slurry, characterized by: The application relates to a multi-cylinder liquid mixing device, which comprises a lower cylinder (1), a middle cylinder (2) fixed to the upper end of the lower cylinder (1), an upper cylinder (3) fixed to the upper end of the middle cylinder (2), a plurality of supporting blocks (4) fixed to the lower end of the lower cylinder (1), a first cover plate (5) fixed to the inner wall of the upper end of the upper cylinder (3), a feeding mechanism arranged on the first cover plate (5), a bottom plate (6) arranged outside the lower cylinder (1), a liquid injection mechanism (7) arranged on the bottom plate (6), a discharging mechanism arranged at the lower end of the lower cylinder (1), a stirring mechanism arranged on the first cover plate (5), a dispersing mechanism arranged on the stirring mechanism and a vertical moving mechanism arranged in the middle cylinder (2). The water inlet end of the water inlet mechanism is arranged towards the dispersing mechanism. The water inlet mechanism is arranged on the upper cylinder (3) and the middle cylinder (2), and the water outlet end of the liquid injection mechanism (7) is connected to the water inlet end of the water inlet mechanism through a pipeline. A plurality of first grooves (24) are arranged on the inner wall of the middle cylinder (2), the first grooves (24) are communicated with the interior of the upper cylinder (3), and the first grooves (24) are communicated with the interior of the lower cylinder (1).

2. The device for preparing magnesium oxide slurry according to claim 1, characterized by: The feeding mechanism comprises a feeding pipe (51) fixed to the upper end of the first cover plate (5) in a penetrating mode, a feeding tank (52) fixed to the upper end of the feeding pipe (51) and a first valve body (53) arranged on the feeding pipe (51).

3. The device for preparing magnesium oxide slurry according to claim 1, characterized in that: The stirring mechanism comprises a first motor (9) fixed to the upper end of the first cover plate (5), an upper rotating rod (10) fixed to the lower end of the output shaft of the first motor (9), a lower rotating rod (11) fixed to the lower end of the upper rotating rod (10), a screw conveyor (12) fixed to the upper part of the outer peripheral wall of the lower rotating rod (11), a scraping block (13) fixed to the lower part of the outer peripheral wall of the lower rotating rod (11), and the lower end of the scraping block (13) is attached to the bottom surface of the inner wall of the lower cylinder (1).

4. The device for preparing magnesium oxide slurry according to claim 3, wherein: The dispersing mechanism comprises a receiving disc (25) rotatably arranged on the outer peripheral wall of the upper rotating rod (10), a plurality of discharging grooves (26) arranged on the lower end of the receiving disc (25) in a penetrating mode, a plurality of fixing blocks (27) fixed to the outer peripheral wall of the receiving disc (25), a rotating disc (28) rotatably arranged on the lower part of the outer peripheral wall of the upper rotating rod (10), a plurality of second grooves (29) arranged on the outer peripheral wall of the rotating disc (28) in a penetrating mode, and a plurality of third grooves (30) arranged on the lower end of the rotating disc (28) in a penetrating mode, and the upper end surface of the rotating disc (28) is attached to the lower end surface of the receiving disc (25).

5. The device for preparing magnesium oxide slurry according to claim 4, characterized by: The liquid injection mechanism (7) comprises a liquid storage tank (71) fixed to the upper end of the bottom plate (6) and a water pump (72), and the water inlet end of the water pump (72) is connected to the water outlet end of the liquid storage tank (71) through a pipeline.

6. The device for preparing magnesium oxide slurry according to claim 5, wherein: The water inlet mechanism comprises two first fixed pipes (31) penetratingly fixed to the outer peripheral wall of the upper tank body (3), a third valve body (32) arranged on each first fixed pipe (31), a second fixed pipe (33) penetratingly fixed to the outer peripheral wall of the middle tank body (2), a first connecting pipe (34) arranged on the water inlet end of the second fixed pipe (33), and a fourth valve body (35) arranged on the first connecting pipe (34). The water outlet end of the water pump (72) is connected with an injection pipe (36) through a pipeline. The water outlet end of the injection pipe (36) is fixed to the water inlet end of one of the first fixed pipes (31). The injection pipe (36) and the other first fixed pipe (31) are jointly connected with a second connecting pipe (37). The water inlet end of the first connecting pipe (34) and the second connecting pipe (37) are in communication. The second connecting pipe (37) is provided with a fifth valve body (38). The water outlet end of the first fixed pipe (31) faces the fixed block (27).

7. A device for preparing a magnesium oxide slurry according to claim 6, characterized in that: The discharging mechanism comprises a discharging tank (8) penetratingly fixed to the lower end of the lower tank body (1), and a second valve body (81) arranged on the discharging tank (8).

8. The device for preparing magnesium oxide slurry according to claim 1, characterized by: The vertical moving mechanism comprises a bearing ring (14) fixed to the inner wall of the upper part of the middle tank body (2), a second cover plate (15) screwedly installed on the inner wall of the upper end of the middle tank body (2), a second motor (16) fixed to the upper end of the second cover plate (15), a screw rod (17) fixed to the lower end of the output shaft of the second motor (16), a first electric heating ring (18) arranged in the middle tank body (2), a plurality of connecting blocks (19) fixed to the outer peripheral wall of the first electric heating ring (18), a second electric heating ring (20) fixed to the end of the plurality of connecting blocks (19) away from the first electric heating ring (18), a threaded sleeve (21) penetratingly fixed to one of the connecting blocks (19), a limiting hole (22) penetratingly arranged on the other connecting block (19), and a guide column (23) fixed to the lower end of the second cover plate (15). The lower end of the second cover plate (15) and the upper end of the bearing ring (14) are in abutment. The outer peripheral wall of the limiting hole (22) and the inner wall of the guide column (23) are in abutment. The outer peripheral wall of the screw rod (17) and the inner wall of the threaded sleeve (21) are screwedly connected.

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