A preparation device and preparation process for hydromagnesite composite flame retardant

Abstract

The present invention discloses a preparation device for hydromagnesite composite flame retardant and a preparation process thereof, which relate to the technical field of material mixing, including a stirring barrel, and also including a power component arranged on the top of the stirring barrel and capable of adaptively connecting or disconnecting power output according to the degree of water drop, and a negative pressure component connected to the power component and performing cyclic negative pressure pumping through the power provided by the component. A stirring device for stirring and spraying is fixedly embedded at the center of the pulley, the top of the inner cavity of the stirring device is connected to a conical water baffle through a sealed bearing, and the outer bottom of the stirring device is connected to a water filter through a sealed bearing. During use, the power component can automatically fall into place and drive the negative pressure component to move. The negative pressure component can realize continuous and cyclic extraction of the bottom permeated and filtered mixed additives upward, so that they re-enter the interior of the stirring device for spraying from top to bottom.

Description

Technical Field

[0001] The invention relates to the technical field of material mixing, in particular to a preparation device and a preparation process for a hydromagnesite composite flame retardant. Background Art

[0002] Hydromagnesite composite flame retardant is a new type of inorganic flame retardant, its core ingredient being hydromagnesite (HM). Hydromagnesite, with the chemical formula 3MgCO3·Mg(OH)2·3H2O, is primarily composed of magnesium oxide (MgO), carbon dioxide (CO2), and water (H2O). Other ingredients are often added to enhance its performance. The preparation of hydromagnesite composite flame retardant involves multiple key equipment components, which work together to complete the mixing, crushing, surface modification, and packaging steps of the flame retardant. Through this process, hydromagnesite composite flame retardant not only meets the requirements for high-efficiency flame retardancy, but also balances environmental protection and economic efficiency, making it a flame retardant material with excellent performance.

[0003] In the existing production process, the modification process of hydromagnesite powder is usually to mix the hydromagnesite powder with a silane coupling agent and other additives. The respective components must be strictly proportioned to achieve the optimal modification effect. However, when the existing stirring device is stirring, since the silane coupling agent is mostly a mixed additive, pouring it directly into the stirring device is not conducive to the hydromagnesite powder being fully mixed with it. During stirring, part of the mixed additive flows downward along the gaps between the powder particles and eventually gathers at the bottom of the stirring device. These mixed additives are difficult to continue to participate in the mixing, resulting in a change in the ratio between the materials. This may cause part of the hydromagnesite powder to be incompletely modified and insufficiently hydrophobic, resulting in adhesion and agglomeration when subsequently mixed with other materials for melting, affecting the melting efficiency. In addition, melting the unmodified hydromagnesite powder with other materials may also affect the flame retardant properties of the final flame retardant.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original preparation device of hydromagnesite composite flame retardant. Summary of the Invention

[0005] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a preparation device and a preparation process for hydromagnesite composite flame retardant, so as to solve the problem proposed in the above background technology that the mixed additives gathered at the bottom of the stirring device are difficult to mix, resulting in incomplete modification of the hydromagnesite ore powder.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a preparation device for hydromagnesite composite flame retardant and a preparation process thereof, comprising a stirring barrel, a cover plate installed on the top of the stirring barrel, a support frame connected to one end of the top of the stirring barrel, and a pulley 1 connected to the center of the top of the stirring barrel through a bearing; further comprising a power component arranged on the top of the stirring barrel that can adaptively connect or disconnect power output according to the degree of water drop, and a negative pressure component connected to the power component and performing circulating negative pressure pumping through the power provided by the component, a stirring device for stirring and spraying fixedly embedded in the center of the pulley 1, the top of the inner cavity of the stirring device is connected to a conical water baffle through a sealed bearing, and the outer bottom of the stirring device is connected to a water filter through a sealed bearing.

[0007] Preferably, the power assembly includes a cylinder, a water tank and a bevel gear 1, the bottoms of the cylinder, the water tank and the bevel gear 1 are all installed on the top of the mixing barrel, the output end of the cylinder is fixedly connected to a connecting plate, the bottom of one end of the connecting plate is connected to a water pressure plate through a connecting rod, the surface of the water pressure plate is movably embedded in the inside of the water tank, the bottom of the other end of the connecting plate is connected to a driving motor 2, the bottom of the driving motor 2 is connected to a self-rebounding cross connecting block, the bottom of the self-rebounding cross connecting block corresponds to the top position of the bevel gear 1, the surface of the bevel gear 1 is meshed with the bevel gear 2, and the bevel gear 2 is movably embedded in the surface of the support frame through an annular groove opened on the surface.

[0008] Preferably, a bearing is provided at the connection between the bevel gear 1 and the mixing barrel, and a sealing rubber strip is attached to the contact surface between the water storage tank and the water pressure plate.

[0009] Preferably, the negative pressure assembly includes a connecting rod, a negative pressure tank 1 and a negative pressure tank 2, the connecting rod is movably embedded in the inner cavity of the stirring device and the conical water baffle, one end of the top of the connecting rod is connected to a sleeve plate, a connecting column is inserted into the interior of the sleeve plate, the connecting column is fixedly connected to the side of the non-tooth surface of the bevel gear 2, the surface of the connecting rod is movably sleeved with a fixing device, the bottom of the fixing device is connected to both sides of the top of the negative pressure tank 1, the two sides of the surface of the connecting rod are symmetrically connected with forked connecting rods, the bottoms of the two forked connecting rods are commonly connected to piston 1, and the bottom of the connecting rod The bottom of the negative pressure tank is connected to a piston two, the bottom of the negative pressure tank is connected to a guide pipe one, the top of the guide pipe is provided with a one-way valve, the top of the guide pipe is connected to the bottom of one side of the negative pressure tank, the bottom of the other side of the negative pressure tank is connected to the guide pipe two, the surface of the guide pipe two passes through one side of the surface of the fixing device, the top of the guide pipe two is embedded in the surface of the conical water baffle, the bottom of the negative pressure tank is movably embedded with a water retaining ring, the bottom of the negative pressure tank one is connected to the top of the negative pressure tank two, and the connecting surfaces of the negative pressure tank one and the negative pressure tank two are provided with through grooves.

[0010] Preferably, the annular parts at the upper and lower ends of the fixing device are bearings and the outer side of the bearing is connected to the inner surface of the stirring device, the piston 1 moves inside the negative pressure tank 1, and the piston 2 moves inside the negative pressure tank 2. A hollow column is installed through the center of the bottom of the inner cavity of the negative pressure tank 1 and is interconnected with the through groove at the top of the negative pressure tank 2.

[0011] Preferably, the bottom of the second negative pressure tank is connected to the bottom of the stirring device through a bearing, and the bottom of the water retaining ring normally contacts the bottom of the inner cavity of the stirring barrel, and when it moves, the top inclined surface coincides with the inclined surface of the bottom opening of the second negative pressure tank.

[0012] Preferably, a screw sealing cover is provided at the center of the surface of the water pressure plate, limit blocks are provided on both sides of the inner wall of the water storage tank and are embedded with the openings on both sides of the water pressure plate, the bottom of the water storage tank is connected to a diversion water pipe, the water inlet of the diversion water pipe is provided with a gravity valve and the water outlet of the diversion water pipe is located in the gap between the inner cavity of the stirring device and the outer surface of the conical water baffle.

[0013] Preferably, the surface of the pulley 1 is engaged with a toothed belt, the top center of the mixing barrel has an opening, the bottom of the pulley 1 is connected to the top center of the mixing barrel through a bearing, the inner side of one end of the toothed belt is engaged with pulley 2, the bottom of the movable shaft of the pulley 2 is embedded in one side of the top surface of the mixing barrel, the top of the pulley 2 is connected to the driving motor 1 through a movable shaft, the bottom of the driving motor 1 is fixed to one side of the top of the mixing barrel through a support frame, the bottom of the stirring device is also provided with an inclined push plate, the bottom of the inclined push plate fits in the top of the water filter net, and the inclined surface of the inclined push plate fits in the inclined surface of the bottom of the inner cavity of the stirring barrel, and the top of the stirring device is embedded in the center of the top of the mixing barrel through a bearing.

[0014] Preferably, the interior of the stirring rod at the top of the stirring device is hollow, the top of the stirring device is grooved and connected to the interior of the stirring rod, the bottom end of the stirring rod at the top of the stirring device is provided with a water outlet, and the outer side of the water filter is fixedly installed at the bottom of the inner cavity of the stirring barrel.

[0015] A preparation process for a hydromagnesite composite flame retardant, the preparation process comprising the following steps:

[0016] Step 1: The cylinder gradually presses down to the top of the conical baffle according to the remaining mixed additives in the water tank to spray, and connects the power source to the bevel gear one, and then drives the connecting rod to move vertically up and down through the bevel gear one;

[0017] Step 2: The movement of the connecting rod drives piston 1 and piston 2 to move synchronously, gradually moving the mixed additive from the negative pressure tank 2 to the inside of the negative pressure tank 1 and transporting it to the top of the conical water baffle, thereby realizing the cyclic extraction of the mixed additive;

[0018] Step 3: The mixed additive pumped to the top of the conical water baffle flows out through the water outlet of the stirring rod at the top of the stirring device and is mixed with the hydromagnesite powder again.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Through the compression of the cylinder, the mixed additives inside the water tank are continuously squeezed, and the mixed additives inside the water tank are simultaneously released downward when under pressure, triggering the gravity valve of the diversion pipe at the bottom of the water tank to open it, and the mixed additives flow along the diversion pipe to the inside of the stirring device, and due to the obstruction of the conical water baffle, they can only flow to the stirring rods around the top of the stirring device, and are sprayed through the water outlet connected to the stirring rods. At the same time, the driving motor drives the pulley one to rotate through the pulley two and the toothed belt, and the pulley one drives the stirring device to rotate. At this time, stirring and full-angle spraying can be carried out synchronously, so that the mixed additives can cover the surface of the hydromagnesite ore powder to the greatest extent.

[0021] When all the mixed additives have flowed out, the bottom of the water pressure plate fits the inner surface of the water tank due to the fall of the water pressure plate, which drives the self-rebounding cross connecting block to fall through the connecting plate until the self-rebounding cross connecting block falls to fit the surface groove of bevel gear one, locks bevel gear one and drives it to rotate. When bevel gear one rotates, it drives bevel gear two to rotate. When bevel gear two rotates, its connecting column connected to the non-tooth surface drives the connecting rod to move vertically up and down through the sleeve plate. When the connecting rod moves, it drives piston one and piston two connected to it to move synchronously. When the connecting rod moves up for the first time, the water retaining ring moves up and fits the bottom of negative pressure tank two by the negative pressure suction force of piston two. Then, the mixed additives gathered at the bottom of the mixing barrel after being filtered through the water filter lose the obstruction of the water retaining ring and are also synchronously brought to the inside of negative pressure tank two by the negative pressure suction force. Then the connecting rod moves down, and piston two discharges air, driving the water retaining ring to fall and lock the mixed additives inside the negative pressure tank two. When the water retaining ring is locked, the movable The pressure driven by the continued downward pressure of plug two will cause the mixed additives to flow into the interior of negative pressure tank one through guide tube one, and since a one-way valve is provided at the water outlet end of guide tube one, the mixed additives will not flow back into the interior of negative pressure tank two. Then the connecting rod moves up again, and the above operation is repeated inside negative pressure tank two. The interior of negative pressure tank one obtains air through guide tube two for negative pressure suction, and when waiting for the connecting rod to fall again, the mixed additives inside it are squeezed into guide tube two and flow out through it to the top of the conical water baffle. It should be noted that the above operation is the first cycle. Since piston one and piston two move synchronously, in subsequent cycles, guide tube one will transport the mixed additives to negative pressure tank one, and the mixed additives inside negative pressure tank one will also be transported to the top of the conical water baffle through guide tube two. At this time, it is only necessary to repeat the above operation to continuously draw out the mixed additives gathered at the bottom of the inner cavity of the mixing barrel, thereby minimizing the change in the ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the stirring barrel of the present invention.

[0024] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the present invention.

[0025] Figure 4 It is a schematic diagram of the transmission structure of the stirring device of the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention.

[0027] Figure 6 This is a schematic diagram of the disassembly of the power assembly structure of the present invention.

[0028] Figure 7 It is a schematic cross-sectional view of the overall structure of the negative pressure component of the present invention.

[0029] Figure 8 This is a schematic diagram of the structural position of the fixing device of the present invention.

[0030] Figure 9 It is a partial cross-sectional schematic diagram of the negative pressure component structure of the present invention.

[0031] Figure 10 This is a schematic diagram of a partial breakdown of the negative pressure component structure of the present invention.

[0032] Figure 11 It is a schematic cross-sectional view of the stirring device structure of the present invention.

[0033] Figure 12 It is a schematic diagram of the activity trajectory of the sleeve plate structure of the present invention.

[0034] Figure 13 It is a schematic diagram of the dynamic structure of the exhaust state of the present invention.

[0035] Figure 14 It is a schematic diagram of the dynamic structure of the inhalation state of the present invention.

[0036] In the figure: 1. Mixing barrel; 11. Cover plate; 12. Support frame; 2. Pulley 1; 21. Toothed belt; 22. Pulley 2; 23. Drive motor 1; 24. Stirring device; 25. Conical water baffle; 26. Water filter; 3. Cylinder; 31. Connecting plate; 32. Water pressure plate; 33. Water storage tank; 34. Drive motor 2; 35. Self-rebounding cross connecting block; 36. Bevel gear 1; 37. Bevel gear 2; 4. Connecting rod; 41. Sleeve plate; 42. Fixing device; 43. Forked connecting rod; 44. Piston 1; 45. Piston 2; 46. Negative pressure tank 1; 47. Negative pressure tank 2; 48. Diversion pipe 1; 49. Diversion pipe 2; 410. Water retaining ring. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1 to 14 The present invention provides a technical solution: a preparation device for a hydromagnesite composite flame retardant and a preparation process thereof, comprising a stirring barrel 1, a cover plate 11 being installed on the top of the stirring barrel 1, a support frame 12 being connected to one end of the top of the stirring barrel 1, a pulley 2 being connected to the center of the top of the stirring barrel 1 through a bearing, and a power component being arranged on the top of the stirring barrel 1 and capable of adaptively connecting or disconnecting power output according to the degree of water drop, and a negative pressure component being connected to the power component and performing circulatory negative pressure pumping through the power provided by the component, a stirring device 24 for stirring and spraying being fixedly embedded at the center of the pulley 2, the top of the inner cavity of the stirring device 24 being connected to a conical water baffle 25 through a sealed bearing, and the outer bottom of the stirring device 24 being connected to a water filter 26 through a sealed bearing.

[0039] In a specific implementation, the bevel gear 2 37 is supported by the support frame 12 to prevent it from shifting, and the power of the drive motor 23 is transmitted to the stirring device 24 through the pulley 1 2. The power component can automatically fall into place and drive the negative pressure component to move. The negative pressure component can continuously and cyclically extract the bottom infiltrated and filtered mixed additives upward, so that they re-enter the stirring device 24 for spraying from top to bottom. The sealing connection between the stirring device 24 and the conical water baffle 25 prevents the mixed additives from penetrating into the interior of the device, and only flows into the stirring rod of the stirring device 24. The mixed additives that penetrate to the bottom are separated from the hydromagnesite ore powder through the water filter net 26.

[0040] As a further implementation scheme of the present invention, the power assembly includes a cylinder 3, a water tank 33 and a bevel gear 36. The bottoms of the cylinder 3, the water tank 33 and the bevel gear 36 are all installed on the top of the mixing barrel 1. The output end of the cylinder 3 is fixedly connected to a connecting plate 31. The bottom of one end of the connecting plate 31 is connected to a water pressure plate 32 through a connecting rod. The surface of the water pressure plate 32 is movably embedded in the interior of the water tank 33. The bottom of the other end of the connecting plate 31 is connected to a drive motor 2 34. The bottom of the drive motor 2 34 is connected to a self-rebounding cross connecting block 35. The bottom of the self-rebounding cross connecting block 35 corresponds to the top position of the bevel gear 1 36. The surface of the bevel gear 1 36 is meshed with a bevel gear 2 37. The bevel gear 2 37 is movably embedded in the surface of the support frame 12 through an annular groove opened on the surface.

[0041] In a specific implementation, a cross groove body is provided on the top of the bevel gear 1 36 corresponding to the bottom of the self-rebound cross connecting block 35, and the contact points of the self-rebound cross connecting block 35 and the bevel gear 1 36 in the relative direction are all curved, which are convenient for mutual interlocking. A roller can also be provided on the support surface at the top of the support frame 12 to reduce the friction resistance of the bevel gear 2 37 during rotation. When all the mixed additives have flowed out, the bottom of the water pressure plate 32 is in contact with the inner surface of the water storage tank 33, and the water pressure plate 32 falls, driving the self-rebound cross connecting block 35 to fall until the self-rebound cross connecting block 35 It falls until it fits into the groove on the surface of bevel gear 1 36. Since the self-rebounding cross connecting block 35 is driven to rotate continuously by the output end of drive motor 2 34 when it falls, if the position of the bottom of the self-rebounding cross connecting block 35 is offset when it contacts the top of bevel gear 1 36, the self-rebounding cross connecting block 35 can automatically shrink upward due to the extrusion force until the grooves and protrusions at both ends are aligned with each other. The self-rebounding cross connecting block 35 loses the extrusion force and automatically falls, locking bevel gear 1 36 and driving it to rotate. When bevel gear 1 36 rotates, it drives bevel gear 2 37 to rotate, realizing automatic connection of the power source.

[0042] As a further embodiment of the present invention, a bearing is provided at the connection between the bevel gear 36 and the mixing barrel 1, and the contact surfaces of the water storage tank 33 and the water pressure plate 32 are both fitted with sealing rubber strips.

[0043] In a specific implementation, the bevel gear 36 can rotate freely through the bearing, and the sealing rubber strip that fits the contact surface between the water tank 33 and the water pressure plate 32 can prevent the mixed additive from overflowing to the outside of the water tank 33 when the water pressure plate 32 is pressed down.

[0044] As a further embodiment of the present invention, the negative pressure assembly includes a connecting rod 4, a negative pressure tank 1 46 and a negative pressure tank 2 47. The connecting rod 4 is movably embedded in the inner cavity of the stirring device 24 and the conical water baffle 25. One end of the top of the connecting rod 4 is connected to a sleeve plate 41. A connecting column is inserted into the interior of the sleeve plate 41. The connecting column is fixedly connected to the side of the non-tooth surface of the bevel gear 2 37. The surface of the connecting rod 4 is movably sleeved with a fixing device 42. The bottom of the fixing device 42 is connected to both sides of the top of the negative pressure tank 1 46. The two sides of the surface of the connecting rod 4 are symmetrically connected with forked connecting rods 43. The bottoms of the two forked connecting rods 43 are commonly connected to a piston 1 44. The bottom of the connecting rod 4 The bottom of the negative pressure tank 47 is connected to a guide pipe 48, and the top of the guide pipe 48 is provided with a one-way valve. The top of the guide pipe 48 is connected to the bottom of one side of the negative pressure tank 46, and the bottom of the other side of the negative pressure tank 46 is connected to the guide pipe 2 49. The surface of the guide pipe 2 49 passes through one side of the surface of the fixing device 42, and the top of the guide pipe 2 49 is embedded in the surface of the conical water baffle 25. The bottom of the negative pressure tank 47 is movably embedded with a water retaining ring 410. The bottom of the negative pressure tank 46 is connected to the top of the negative pressure tank 47, and the connecting surfaces of the negative pressure tank 46 and the negative pressure tank 2 are both provided with through grooves.

[0045] In the specific implementation, the connecting rod 4 is movably embedded in the inner cavity of the stirring device 24 and the conical water baffle 25, so that it will not affect the rotation of the stirring device 24 when it moves up and down. When the bevel gear 2 37 rotates, its non-tooth surface connecting column drives the connecting rod 4 to move vertically up and down through the sleeve 41. When the connecting rod 4 moves up for the first time, the water retaining ring 410 is moved up and fits the bottom of the negative pressure tank 2 47 by the negative pressure suction of the piston 2 45. Then the mixed additive loses the obstruction of the water retaining ring 410 and is simultaneously brought to the inside of the negative pressure tank 2 47 by the negative pressure suction. Then the connecting rod 4 moves down, the piston 2 45 expels the air, drives the water retaining ring 410 to fall and locks the mixed additive inside the negative pressure tank 2 47. When the water retaining ring 410 is locked, the pressure generated by the piston 2 45 continues to press down The mixed additives will flow into the interior of the negative pressure tank 46 through the guide tube 1 48, and since a one-way valve is provided at the water outlet end of the guide tube 1 48, the mixed additives will not flow back into the interior of the negative pressure tank 2 47. Then the connecting rod 4 moves up again, and the interior of the negative pressure tank 2 47 repeats the above operation. The interior of the negative pressure tank 1 46 obtains air through the guide tube 2 49 for negative pressure suction, and when waiting for the connecting rod 4 to fall again, the mixed additives inside it are squeezed into the guide tube 2 49 and flow out through it to the top of the conical water baffle 25. The guide tube 1 48 and the guide tube 2 49 can be set to pipes with smaller inner diameters, which further facilitates the upward extrusion of the mixed additives. Secondly, the top of the guide tube 2 49 is bent downward to avoid the backflow of the mixed additives at the top of the conical water baffle 25.

[0046] As a further embodiment of the present invention, the annular parts at the upper and lower ends of the fixing device 42 are bearings and the outer side of the bearing is connected to the inner surface of the stirring device 24, the piston 44 moves inside the negative pressure tank 1 46, and the piston 2 45 moves inside the negative pressure tank 2 47. A hollow column is installed at the center of the bottom of the inner cavity of the negative pressure tank 1 46 and is interconnected with the through groove at the top of the negative pressure tank 2 47.

[0047] In the specific implementation, the bearings at the upper and lower ends of the fixing device 42 are used to ensure that the support block inside the stirring device 24 will not rotate with it when it rotates. The piston 1 44 and the piston 2 45 are used to circulate air in and out of the negative pressure tank 1 46 and the negative pressure tank 2 47 to achieve intermittent negative pressure adsorption.

[0048] As a further embodiment of the present invention, the bottom of the negative pressure tank 2 47 is connected to the bottom of the stirring device 24 through a bearing. The normal state of the water retaining ring 410 is that the bottom contacts the bottom of the inner cavity of the stirring barrel 1, and when it moves, the top inclined surface coincides with the inclined surface of the bottom opening of the negative pressure tank 2 47.

[0049] In a specific implementation, the rotation of the stirring device 24 by the bearing will not affect the stability of the negative pressure tank 2 47 itself, and at the same time it has the function of fixing the negative pressure tank 2 47 so that its bottom remains suspended, which is convenient for the entry of mixed additives. Since an extension plate is provided on the top of the inner cavity of the water retaining ring 410, it can move synchronously with the intake and exhaust of the piston 2 45. Specifically, when the water retaining ring 410 is not affected by the negative pressure suction and is located at the bottom, it can isolate the mixed additives inside and outside. When the water retaining ring 410 is affected by the negative pressure suction and moves upward to match the inclined surface of the bottom of the negative pressure tank 2 47, it does not affect the flow of mixed additives into the inside of the negative pressure tank 2 47.

[0050] As a further implementation scheme of the present invention, a screw sealing cover is provided at the center of the surface of the water pressure plate 32, and limit blocks are provided on both sides of the inner wall of the water storage tank 33 and are embedded with the openings on both sides of the water pressure plate 32. The bottom of the water storage tank 33 is connected to a diversion water pipe, and the water inlet of the diversion water pipe is provided with a gravity valve and the water outlet of the diversion water pipe is located in the gap between the inner cavity of the stirring device 24 and the outer surface of the conical water baffle 25.

[0051] In a specific implementation, a screw sealing cover is used to prevent the water pressure plate 32 from overflowing when pressing down the internal mixed additive. Furthermore, the pressure value of the gravity valve at the water inlet of the diversion water pipe can be set to open only when the mixed additive inside the water tank 33 is subjected to additional pressure. If it is only filled with mixed additives and is not subjected to additional pressure, it will not open. Secondly, the water outlet of the diversion water pipe is located in the gap between the inner cavity of the stirring device 24 and the outer surface of the conical water baffle 25, so that it will not affect the rotation of the stirring device 24.

[0052] As a further embodiment of the present invention, the surface of pulley 2 is engaged with a toothed belt 21, the top center of the mixing barrel 1 is opened, and the bottom of pulley 2 is connected to the top center of the mixing barrel 1 through a bearing. The inner side of one end of the toothed belt 21 is engaged with pulley 22, and the bottom of the movable shaft of pulley 22 is embedded in one side of the top surface of the mixing barrel 1. The top of pulley 22 is connected to drive motor 1 23 through a movable shaft, and the bottom of drive motor 23 is fixed to one side of the top of the mixing barrel 1 through a bracket. The bottom of the stirring device 24 is also provided with an inclined push plate, the bottom of the inclined push plate fits the top of the water filter 26, and the inclined surface of the inclined push plate fits the inclined surface of the bottom of the inner cavity of the mixing barrel 1. The top of the stirring device 24 is embedded in the center of the top of the mixing barrel 1 through a bearing.

[0053] In a specific implementation, the top of the mixing barrel 1 is used to support pulley 1 2, pulley 2 22 and drive motor 1 23. An opening is reserved at the top of the mixing barrel 1 so that the stirring device 24 can partially extend itself and connect with pulley 1 2, and pulley 2 22 and drive motor 1 23 are fixedly connected to the movable shaft. The bottom of the movable shaft is connected to the mixing barrel 1 at a location provided with a bearing. The output shaft of the drive motor 1 23 transmits power to pulley 1 2 through pulley 2 22 and the toothed belt 21, so that pulley 1 2 can drive the stirring device 24 to rotate, thereby achieving the purpose of stirring the material inside the mixing barrel 1. When discharging, the inclined push plate at the bottom of the stirring device 24 moves synchronously with the stirring device 24, which can further assist in discharging.

[0054] As a further embodiment of the present invention, a plurality of stirring rods are fixedly connected to the surface of the stirring device 24, the interior of the top stirring rod is hollow, the top of the stirring device 24 is grooved and connected to the interior of the top stirring rod, and the bottom end of the top stirring rod of the stirring device 24 is provided with a water outlet, and the outer side of the water filter 26 is fixedly installed at the bottom of the inner cavity of the stirring barrel 1.

[0055] In the specific implementation, the interior of the stirring rod at the top of the stirring device 24 is set to be hollow, and the groove at the top of the stirring device 24 is connected to the interior of the top stirring rod, so that the mixed additives can enter the interior and flow out from the water outlet at the bottom thereof, and the stirring rods at other positions on the stirring device 24 are used for auxiliary stirring, thereby achieving the purpose of mixing and feeding at the same time. The extremely small screen of the water filter 26 itself can block the hydromagnesite ore powder without affecting the downward penetration of the mixed additives. Secondly, the water filter 26 itself is higher than the bottom expansion of the negative pressure tank 47, so that the mixed additives have a gathering space when they penetrate to the bottom, and since the outer side of the water filter 26 itself is fixed to the inner wall of the stirring barrel 1, it can further stabilize the rotating stirring device 24 at the same time.

[0056] A preparation process for a hydromagnesite composite flame retardant, the preparation process comprising the following steps:

[0057] Step 1: The cylinder 3 is gradually pressed down to the top of the conical water baffle 25 according to the residual mixed additive in the water tank 33 to spray, and the power source is connected to the bevel gear 1 36, and then the connecting rod 4 is driven to move vertically up and down through the bevel gear 1 36;

[0058] Step 2: The connecting rod 4 moves to drive the piston 1 44 and the piston 2 45 to move synchronously, gradually moving the mixed additive from the negative pressure tank 2 47 to the inside of the negative pressure tank 1 46 and transporting it to the top of the conical water baffle 25, thereby realizing the cyclic extraction of the mixed additive;

[0059] Step 3: The mixed additive pumped to the top of the conical water baffle 25 flows out through the water outlet of the stirring rod at the top of the stirring device 24 and is mixed with the hydromagnesite powder again.

[0060] Working principle: When using the preparation device of the hydromagnesite composite flame retardant, start the cylinder 3 in advance to lift the water pressure plate 32, and then discharge the proportioned hydromagnesite ore powder and the mixed additives from the surface inlet of the mixing barrel 1 and the top inlet of the water pressure plate 32 respectively, and then close the two inlets, retract the cylinder 3 and start the drive motor 1 23 and the drive motor 2 34 at the same time. At this time, the water pressure plate 32 loses its lifting force and due to the retraction power of the cylinder 3, it continues to fall and squeezes the mixed additives in the water tank 33. The mixed additives in the water tank 33 are pressed downward synchronously. The pressure is released, triggering the gravity valve of the diversion pipe at the bottom of the water tank 33 to open it, and the mixed additive flows along the diversion pipe to the inside of the stirring device 24. Due to the obstruction of the conical water baffle 25, it can only flow to the stirring rods around the top of the stirring device 24 and spray through the water outlet holes connected to the stirring rods. At the same time, the driving motor 1 23 drives the pulley 1 2 to rotate through the pulley 2 22 and the toothed belt 21, and the pulley 1 2 then drives the stirring device 24 to rotate. At this time, stirring and full-angle spraying can be carried out synchronously, so that the mixed additive can cover the surface of the hydromagnesite ore powder to the greatest extent.

[0061] When all the mixed additives have flowed out, the bottom of the water pressure plate 32 is in contact with the inner surface of the water tank 33. Due to the falling of the water pressure plate 32, the self-rebounding cross connecting block 35 is driven to fall through the connecting plate 31 until the self-rebounding cross connecting block 35 falls to the groove on the surface of the bevel gear 1 36. Since the self-rebounding cross connecting block 35 is driven to rotate continuously by the output end of the driving motor 2 34 when falling, if the position of the bottom of the self-rebounding cross connecting block 35 is offset when it contacts the top of the bevel gear 1 36, the self-rebounding cross connecting block 35 can be automatically retracted upward by the extrusion force until the grooves at both ends are aligned with the protrusions. When the extrusion force is lost, it automatically falls down, locking the bevel gear 1 36 and driving it to rotate. When the bevel gear 1 36 rotates, it drives the bevel gear 2 37 to rotate. When the bevel gear 2 37 rotates, the connecting column connected to the non-tooth surface drives the connecting rod 4 to move vertically up and down through the sleeve plate 41. When the connecting rod 4 moves, it drives the piston 1 44 and the piston 2 45 connected thereto to move synchronously. When the connecting rod 4 moves up for the first time, the water retaining ring 410 is moved up by the negative pressure suction of the piston 2 45 to fit the bottom of the negative pressure tank 2 47. The mixed additives that are then filtered by the water filter 26 and gathered at the bottom of the mixing barrel 1 lose the obstruction of the water retaining ring 410 and are also synchronously brought to the negative pressure tank 2 by the negative pressure suction. The interior of the negative pressure tank 2 47 is then pressed down, and the piston 2 45 expel the air, driving the water retaining ring 410 to fall and lock the mixed additive inside the negative pressure tank 2 47. When the water retaining ring 410 is locked, the pressure generated by the piston 2 45 continuing to press down will cause the mixed additive to flow through the guide pipe 1 48 to the interior of the negative pressure tank 1 46, and since a one-way valve is provided at the water outlet end of the guide pipe 1 48, the mixed additive will not flow back to the interior of the negative pressure tank 2 47. Then the connecting rod 4 moves up again, and the interior of the negative pressure tank 2 47 repeats the above operation, and the interior of the negative pressure tank 1 46 obtains air through the guide pipe 2 49 for negative pressure Inhale, and wait for the connecting rod 4 to fall again, so that the mixed additives inside it are squeezed out of the guide tube 2 49 and flow out through it to the top of the conical water baffle 25. It should be noted that the above operation is the first cycle. Since piston 1 44 and piston 2 45 move synchronously, in subsequent cycles, the guide tube 1 48 will transport the mixed additives to the negative pressure tank 1 46, and the mixed additives inside the negative pressure tank 1 46 will also be transported to the top of the conical water baffle 25 through the guide tube 2 49. At this time, you only need to repeat the above operation to continuously draw out the mixed additives gathered at the bottom of the inner cavity of the mixing barrel 1, so as to minimize the change in the ratio.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preparing a hydromagnesite composite flame retardant, comprising a stirring barrel (1), a cover plate (11) being installed on the top of the stirring barrel (1), a support frame (12) being connected to one end of the top of the stirring barrel (1), and a pulley (2) being connected to the center of the top of the stirring barrel (1) via a bearing, characterized in that: It also includes a power assembly disposed on the top of the mixing barrel (1) that can adaptively connect or disconnect power output according to the degree of water drop, and a negative pressure assembly connected to the power assembly and used to perform cyclic negative pressure pumping through the power provided by the assembly, a stirring device (24) for stirring and spraying is fixedly embedded at the center of the pulley (2), the top of the inner cavity of the stirring device (24) is connected to a conical water baffle (25) through a sealed bearing, and the outer bottom of the stirring device (24) is connected to a water filter (26) through a sealed bearing; The negative pressure assembly includes a connecting rod (4), a negative pressure tank 1 (46) and a negative pressure tank 2 (47), wherein the connecting rod (4) is movably embedded in the inner cavity of the stirring device (24) and the conical water baffle (25), one end of the top of the connecting rod (4) is connected to a sleeve plate (41), a connecting column is inserted into the interior of the sleeve plate (41), and the connecting column is fixedly connected to the side of the non-tooth surface of the bevel gear 2 (37), the surface of the connecting rod (4) is movably sleeved with a fixing device (42), the bottom of the fixing device (42) is connected to both sides of the top of the negative pressure tank 1 (46), the two sides of the surface of the connecting rod (4) are symmetrically connected with forked connecting rods (43), the bottoms of the two forked connecting rods (43) are commonly connected to the piston 1 (44), and the bottom of the connecting rod (4) is connected to Piston 2 (45), the bottom of the negative pressure tank 2 (47) is connected to the guide pipe 1 (48), the top of the guide pipe 1 (48) is provided with a one-way valve, the top of the guide pipe 1 (48) is connected to the bottom of one side of the negative pressure tank 1 (46), the bottom of the other side of the negative pressure tank 1 (46) is connected to the guide pipe 2 (49), the surface of the guide pipe 2 (49) passes through one side of the surface of the fixing device (42), the top of the guide pipe 2 (49) is embedded in the surface of the conical water baffle (25), the bottom of the negative pressure tank 2 (47) is movably embedded with a water retaining ring (410), the bottom of the negative pressure tank 1 (46) is connected to the top of the negative pressure tank 2 (47), and the connecting surfaces of the negative pressure tank 1 (46) and the negative pressure tank 2 (47) are both provided with through grooves; The power assembly includes a cylinder (3), a water storage tank (33) and a bevel gear (36). The bottoms of the cylinder (3), the water storage tank (33) and the bevel gear (36) are all installed on the top of the mixing barrel (1). The output end of the cylinder (3) is fixedly connected to a connecting plate (31). The bottom of one end of the connecting plate (31) is connected to a water pressure plate (32) through a connecting rod. The surface of the water pressure plate (32) is movably embedded in the interior of the water storage tank (33). The bottom of the other end of the connecting plate (31) is connected to a driving motor (34). The bottom of the driving motor (34) is connected to a self-rebounding cross connecting block (35). The bottom of the self-rebounding cross connecting block (35) corresponds to the top position of the bevel gear (36). The surface of the bevel gear (36) is meshed with a bevel gear (37). The bevel gear (37) is movably embedded in the surface of the support frame (12) through an annular groove opened on the surface. The annular parts at the upper and lower ends of the fixing device (42) are bearings, and the outer side of the bearing is connected to the inner surface of the stirring device (24). The piston 1 (44) moves inside the negative pressure tank 1 (46), and the piston 2 (45) moves inside the negative pressure tank 2 (47). A hollow column is installed through the center of the bottom of the inner cavity of the negative pressure tank 1 (46) and is interconnected with the through groove at the top of the negative pressure tank 2 (47).

2. The device for preparing a hydromagnesite composite flame retardant according to claim 1, characterized in that: A bearing is provided at the connection between the bevel gear 1 (36) and the mixing barrel (1), and a sealing rubber strip is attached to the contact surface between the water storage tank (33) and the water pressure plate (32).

3. The device for preparing a hydromagnesite composite flame retardant according to claim 1, characterized in that: The bottom of the second negative pressure tank (47) is connected to the bottom of the stirring device (24) through a bearing. The bottom of the water retaining ring (410) normally contacts the bottom of the inner cavity of the stirring barrel (1), and the top inclined surface coincides with the inclined surface of the bottom opening of the second negative pressure tank (47) when it moves.

4. The device for preparing a hydromagnesite composite flame retardant according to claim 2, characterized in that: A screw sealing cover is provided at the center of the surface of the water pressure plate (32), and limit blocks are provided on both sides of the inner wall of the water storage tank (33) and are engaged with the openings on both sides of the water pressure plate (32). The bottom of the water storage tank (33) is connected to a diversion water pipe, and a gravity valve is provided at the water inlet of the diversion water pipe. The water outlet of the diversion water pipe is located in the gap between the inner cavity of the stirring device (24) and the outer surface of the conical water retaining plate (25).

5. The device for preparing a hydromagnesite composite flame retardant according to claim 1, characterized in that: The surface of the pulley 1 (2) is engaged with a toothed belt (21), the top center of the mixing barrel (1) is opened, the bottom of the pulley 1 (2) is connected to the top center of the mixing barrel (1) through a bearing, the inner side of one end of the toothed belt (21) is engaged with the pulley 2 (22), the bottom of the movable shaft of the pulley 2 (22) is embedded in one side of the top surface of the mixing barrel (1), the top of the pulley 2 (22) is connected to the drive motor 1 (23) through the movable shaft, the bottom of the drive motor 1 (23) is fixed to one side of the top of the mixing barrel (1) through a support frame, the bottom of the stirring device (24) is also provided with an inclined push plate, the bottom of the inclined push plate is in contact with the top of the water filter (26), and the inclined surface of the inclined push plate is in contact with the inclined surface of the bottom of the inner cavity of the mixing barrel (1), and the top of the stirring device (24) is embedded in the center of the top of the mixing barrel (1) through a bearing.

6. The device for preparing a hydromagnesite composite flame retardant according to claim 1, characterized in that: A plurality of stirring rods are fixedly connected to the surface of the stirring device (24), the interior of the stirring rod at the top is hollow, the top of the stirring device (24) is grooved and connected to the interior of the stirring rod at the top, the bottom end of the stirring rod at the top of the stirring device (24) is provided with a water outlet, and the outer side of the water filter (26) is fixedly mounted on the bottom of the inner cavity of the stirring barrel (1).

7. A process for preparing a hydromagnesite composite flame retardant, suitable for the preparation device for a hydromagnesite composite flame retardant according to any one of claims 1 to 3, characterized in that: The process includes the following steps: Step 1: The cylinder (3) is gradually pressed down to the top of the conical water baffle (25) according to the residual mixed additive inside the water storage tank (33) to spray, and the power source is connected to the bevel gear (36), and then the connecting rod (4) is driven by the bevel gear (36) to move vertically up and down; Step 2: The connecting rod (4) moves to drive the piston 1 (44) and the piston 2 (45) to move synchronously, gradually moving the mixed additive from the negative pressure tank 2 (47) to the inside of the negative pressure tank 1 (46) and transporting it to the top of the conical water baffle (25), thereby realizing the cyclic extraction of the mixed additive; Step 3: The mixed additive pumped to the top of the conical water retaining plate (25) flows out through the water outlet hole of the stirring rod at the top of the stirring device (24) and is mixed with the hydromagnesite powder again.

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