Pretreatable magnesium oxide filtering device and filtering method

Abstract

The invention discloses a pretreatable magnesium oxide filtering device and filtering method.The pretreatable magnesium oxide filtering device comprises an assembly supporting plate and an intermittent dispersion assembly, the intermittent dispersion assembly is located above the assembly supporting plate, the intermittent dispersion assembly comprises a primary screen drum and four material distribution tanks, and the material distribution tanks are used for secondary retention of powder; the outer wall of each material distribution tank is communicated with a square connector with an inclination angle, the square connectors with the inclination angles are located on the lower portions of the material distribution tanks, the tail ends of the square connectors with the inclination angles are communicated with drainage round pipes, the mechanical transmission principle is adopted for the mechanism, two independent material conveying channels are constructed, multi-cavity independent flow distribution is utilized, weight pressing generated by material accumulation is combined, and the material distribution efficiency is improved. The mechanical assembly is driven to operate, intermittent plugging of the corresponding channel is completed, the material feeding amount is reasonably controlled, meanwhile, a traditional filtering mode is changed, material scattering and filtering progress acceleration are achieved through external force impact, the filtering piece treatment load is effectively relieved, and blocking of the structure in the filtering piece is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of dry separation, in particular to a filtering device capable of pre-treating magnesium oxide and a filtering method. Background Art

[0002] Magnesium oxide is an important inorganic compound. It is a white or beige powder at room temperature. It is odorless, tasteless and non-toxic. It slowly reacts with water to form magnesium hydroxide. It can dissolve in a carbon dioxide aqueous solution to form magnesium bicarbonate. It can also gradually absorb water and carbon dioxide in the air. At high temperatures, it can be reduced to metallic magnesium by hydrogen or strongly reducing elements or alloys.

[0003] The raw materials for the production of magnesium oxide may contain various impurities, such as mud and sand in the ore, other metal oxides, etc. During the production process, these insoluble impurities can be separated from magnesium oxide by filtration to improve the purity of magnesium oxide.

[0004] However, there are the following deficiencies in the existing pre-treatment magnesium oxide filter device: Because magnesium oxide is a solid powder at room temperature, most traditional filtering methods use mechanical vibration to apply external force to the filter element. This operation mode can only be performed by spreading the powder flat, which is limited by the holes in the filter element and the powder throughput is limited. If the amount of powder deposited on the upper layer of the filter element exceeds the original set throughput, it is very easy for the holes in the filter element to be clogged, which will not only cause the efficiency to continue to decrease, but also lead to an increasing degree of clogging, making subsequent cleaning more difficult. Summary of the Invention

[0005] The purpose of the present invention is to provide a filtration device and a filtration method capable of pre-treating magnesium oxide, so as to solve the problem of filter structure clogging caused by insufficient throughput in traditional mechanical vibration filtration of magnesium oxide powder.

[0006] To achieve the above object, the present invention provides the following technical solution: a filtration device capable of pre-treating magnesium oxide, comprising an assembly support plate and an intermittent dispersion component, wherein the intermittent dispersion component is located above the assembly support plate; The intermittent dispersion component includes a primary screen cylinder and four distribution tanks. The distribution tanks are used for secondary retention of powder. The outer wall of each distribution tank is connected to a square joint with an angle, and the square joint with an angle is located at the lower part of the distribution tank. The end of each square joint with an angle is connected to a drainage pipe. The interior of each distribution tank is provided with a sealing inner plate, and the sealing inner plate is movably connected to the inner wall of the distribution tank to control the amount of powder retention. A connecting support plate is provided at the bottom of the distribution tank, and a plurality of arc-shaped reverse thrust blades are installed above the connecting support plate. The connecting support plate is used to drive the plurality of arc-shaped reverse thrust blades to rotate at high speed. When the powder is transported and discharged through the drainage pipe, it directly contacts the rotating arc-shaped reverse thrust blades, and the powder is thrown to the inner wall of the central hole at high speed.

[0007] Preferably, the intermittent dispersion component also includes a central hole, which is opened at the center of the assembly tray. The primary screen cylinder is connected to the inner wall of the central hole. A first square base is provided above the primary screen cylinder. Four external tripods are equidistantly installed on the outer wall of the first square base, and each distribution tank is connected to a corresponding external tripod.

[0008] Preferably, a lower sealing plate is installed at the bottom of each distribution tank, and a group of extension seats are installed at the bottom of each lower sealing plate. A first metal slide rod is movably inserted inside each extension seat, and the top end of each group of first metal slide rods is respectively inserted into the interior of a corresponding sealing inner plate, and an active spring member is provided between each extension seat and the bottom of a corresponding first metal slide rod.

[0009] Preferably, an inner cavity is provided at the center of the first square base, and two hollow frames are installed on the inner wall of the inner cavity. A driving member and a roller bearing member are respectively installed inside the two hollow frames. A coupling is inserted into the inner surface wall of the inner shaft of the roller bearing member. The top end of the coupling is connected to the output end of the driving member, and an extension member is fixed to the bottom end of the coupling, and the extension member is fixedly connected to the connecting support plate.

[0010] Preferably, a group of assembling brackets are installed above the assembly pallet, and a second square base is merged between the group of assembling brackets. A pneumatic telescopic part is connected to the top of the second square base. The shaft end of the pneumatic telescopic part is sleeved with a cross frame, and the cross frame is fixedly connected to the top of the first square base. A group of connecting parts are equidistantly distributed on the outer wall of the second square base, and a lifting frame is installed on the top of each connecting part. A group of outer straight arms are equidistantly connected to the outer wall of the cross frame, and a second metal slide rod is inserted at the end of each outer straight arm, and each second metal slide rod is movably connected to a corresponding connecting part.

[0011] Preferably, a group of lifting frames are fixedly connected to the top of a material retention hopper, and four locking pieces are connected to the bottom of the material retention hopper. The end of each locking piece is connected to a rubber folding tube, and the end of each rubber folding tube is respectively connected to the top of a corresponding material distribution tank and connected to the interior of the material distribution tank. A material aggregation funnel is fixed just below the assembly tray, and the material aggregation funnel is connected to the central hole. The bottom of the material aggregation funnel is connected to a discharge joint, and an electric control valve is provided inside the discharge joint.

[0012] Preferably, the outer wall of the primary screen cylinder is provided with a secondary screening mechanism, which includes a reinforcing outer sleeve, which is fixedly connected to the outer wall of the primary screen cylinder, and a group of third metal slide rods are inserted into the interior of the reinforcing outer sleeve. An inner ring sleeve is movable between the outer walls of a group of third metal slide rods, and the outer wall of each third metal slide rod is provided with a hard spring, which is used to offset the external force of lateral vibration.

[0013] Preferably, a flat filter plate is connected below the inner ring sleeve, an outer ring sleeve is connected above the flat filter plate, a lower isolation sleeve is installed above the assembly support plate, the diameter range of the lower isolation sleeve is consistent with that of the flat filter plate, and a vibrating mechanical part is provided inside the flat filter plate.

[0014] Preferably, the outer wall of the primary screen cylinder is connected with a curved drainage sleeve, a jacket is installed above the outer ring sleeve, and an upper isolation sleeve is inserted into the jacket, and a plurality of hollow feed troughs are equidistantly opened inside the assembly support plate.

[0015] A filtration method for pre-treating a magnesium oxide filter device, comprising the following steps: Step 1: Under the action of gravity, the magnesium oxide powder in the hopper flows into each distribution tank from top to bottom in equal amounts. As the volume of powder in the distribution tank increases, the downward pressure applied to the sealing inner plate will continue to increase. When the sealing inner plate moves down to the end of the distribution tank, the opening of the angled square joint loses its seal, and the powder can be further transported by the drainage tube. At this time, the active spring is in a stretched state.

[0016] Step 2: The driving part provides power to realize the high-speed rotation of the arc-shaped reverse thrust fan blades on the connecting support plate. When the powder is discharged from the end of the drainage tube, it directly contacts the rotating arc-shaped reverse thrust fan blades, further throwing the powder to the inner wall of the primary screen drum at high speed. The impact effect generated when the powder contacts the inner wall of the primary screen drum is used to break up the powder on the one hand, and on the other hand, the powder particles that pass through are continuously filtered, while the larger fixed impurities slide down quickly along the inner wall of the primary screen drum.

[0017] Step 3: By controlling the amount of powder injected into the hopper, ensure that the replenishment amount in the distribution tank is less than the release amount, and use the reverse force of the active spring part to complete the position adjustment of the sealing inner plate, and intermittently complete the sealing of the angled square joint opening.

[0018] Step 4: The initially filtered powder is continuously discharged from the inner structure of the primary sieve drum and dispersed on the outer wall of the primary sieve drum. The free-falling powder is drained through the arc-surface drainage sleeve, while the high-speed moving powder is blocked by the upper isolation sleeve and finally placed above the flat filter plate.

[0019] Step 5: After starting, the vibrating mechanical parts generate mechanical vibrations that continuously affect the plane filter plate body, further completing the secondary screening and filtration of the powder.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets an intermittent dispersion component to control the powder injection amount in the stagnation hopper, ensure that the replenishment amount in the distribution tank is less than the release amount, and uses the reverse action force of the active spring part to complete the position adjustment of the sealing inner plate, intermittently complete the sealing at the opening of the angled square joint to achieve the regulation of the discharge. After the powder is discharged from the end of the drainage circular tube, it directly contacts the rotating arc-shaped reverse thrust fan blade, and further throws the powder to the inner wall of the primary screen drum at high speed. The impact effect generated when the powder contacts the inner wall of the primary screen drum is used to, on the one hand, achieve the purpose of breaking up, and on the other hand, the powder particles that pass through are continuously filtered, while the larger fixed impurities slide down quickly along the inner wall of the primary screen drum. The mechanism adopts the principle of mechanical transmission to construct two independent material conveying channels, and uses multiple cavities for independent diversion. Combined with the weight pressure generated by the accumulation of materials, the operation of the mechanical component is driven to complete the intermittent sealing of the corresponding channels, and the material feeding amount is reasonably controlled. At the same time, the traditional filtering method is changed, and the external force impact is used to achieve material breaking up and accelerate the filtration process, effectively reducing the processing load of the filter element and preventing the blockage of the internal structure of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a perspective view of one side of a filtration device and filtration method for pre-treating magnesium oxide according to the present invention; Figure 2 This is a bottom side structural perspective diagram of a filtration device and filtration method capable of pre-treating magnesium oxide according to the present invention; Figure 3 for Figure 2 A magnified stereoscopic view of the structure at center A; Figure 4 This is an enlarged perspective view of the assembly support plate connection structure in a filtration device and filtration method capable of pre-treating magnesium oxide according to the present invention; Figure 5 This is an enlarged three-dimensional diagram of a partially disassembled structure of a filtration device and filtration method capable of pre-treating magnesium oxide according to the present invention; Figure 6 This is an enlarged three-dimensional view of the first square base connected structure in a filtration device and filtration method capable of pre-treating magnesium oxide according to the present invention; Figure 7 This is an enlarged stereoscopic view of the connected structure of the inner wall of the inner cavity in a filtration device and filtration method capable of pre-treating magnesium oxide according to the present invention; Figure 8 This is an enlarged stereoscopic view of the structure connected to the external tripod in a filtration device and filtration method capable of pre-treating magnesium oxide according to the present invention.

[0022] In the figure: 1. Assembling support plate; 200. Intermittent dispersion component; 201. Central hole; 202. Primary screen drum; 203. Assembling bracket; 204. First square base; 205. Inner cavity; 206. External tripod; 207. Distributing tank; 208. Square joint with tilt angle; 209. Drainage pipe; 210. Lower sealing plate; 211. Extension seat; 212. First metal slide bar; 213. Blocking inner plate; 214. Active spring member; 215. Hollow frame; 216. Driving member; 217. Roller bearing member; 218. Coupling; 219. Extension member; 220. Connecting support plate; 221. Arc-shaped reverse thrust fan blade; 222. Second square base; 223, pneumatic telescopic part; 224, cross frame; 225, outer straight arm; 226, second metal slide bar; 227, lifting frame; 228, material hopper; 229, locking part; 230, rubber folding tube; 231, material gathering funnel; 232, discharge joint; 233, electric control valve; 300, secondary screening mechanism; 301, reinforced outer sleeve; 302, third metal slide bar; 303, inner ring sleeve; 304, flat filter plate; 305, outer ring sleeve; 306, lower isolation sleeve; 307, vibrating mechanical part; 308, arc drainage sleeve; 309, hard spring; 310, hollow discharge chute; 311, upper isolation sleeve. DETAILED DESCRIPTION

[0023] 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 implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] The present invention addresses the problem of clogging of the filter element structure caused by insufficient throughput in traditional mechanical vibration filtration of magnesium oxide powder. In the existing technology, since magnesium oxide is a solid powder at room temperature, most traditional filtering methods use mechanical vibration to apply external force to the filter element. This operation mode can only be performed by spreading the powder flat, which is limited by the holes in the filter element and the powder throughput is limited.

[0025] If too much powder is deposited on the upper layer of the filter element, exceeding the originally set flow rate, the holes in the filter element will easily become clogged, which will not only cause the efficiency to continue to decrease, but also lead to an increasing degree of clogging, making subsequent cleaning more difficult.

[0026] The present invention is completed in order to solve the problems of the prior art. Through the intermittent dispersion component 200, the traditional filtering form is changed to achieve material dispersion and intermittent discharge, thereby solving the filter element processing load and retention volume.

[0027] Example 1, in the embodiment of the present invention, as Figure 4-Figure 5 as well as Figure 8 As shown, a pre-processing magnesium oxide filtering device includes an assembly support plate 1 and an intermittent dispersion component 200, the intermittent dispersion component 200 is located above the assembly support plate 1, the intermittent dispersion component 200 includes a primary screen drum 202 and four distribution tanks 207, the distribution tanks 207 are used for secondary retention of powder, the outer wall of each distribution tank 207 is connected to a square joint 208 with an angle, and the square joint 208 with an angle is located below the distribution tank 207, and the end of each square joint 208 with an angle is connected to a drainage pipe 209, each distribution tank The interior of 207 is provided with a blocking inner plate 213, and the blocking inner plate 213 is movably connected to the inner wall of the distribution tank 207 for controlling the powder retention amount. The intermittent dispersion component 200 also includes a central hole 201, which is opened at the center of the assembly support plate 1. The primary screen drum 202 is connected to the inner wall of the central hole 201. A first square base 204 is provided above the primary screen drum 202. Four external tripods 206 are equidistantly installed on the outer wall of the first square base 204. Each distribution tank 207 is respectively connected to a corresponding external tripod. The tripod 206 is connected, and a lower sealing plate 210 is installed at the bottom of each material distribution tank 207. A group of extension seats 211 are installed at the bottom of each lower sealing plate 210. A first metal slide bar 212 is movably inserted into the interior of each extension seat 211. The top of each group of first metal slide bars 212 is respectively inserted into the interior of a corresponding blocking inner plate 213. An active spring member 214 is provided between each extension seat 211 and the bottom of a corresponding first metal slide bar 212. A group of assembling brackets 203 and a group of assembling brackets 203 are installed above the assembly support plate 1. A second square base 222 is merged between the assembled brackets 203, and a group of associated parts are evenly distributed on the outer wall of the second square base 222, and a lifting frame 227 is installed on the top of each associated part. The top of a group of lifting frames 227 is fixedly connected to a material retention hopper 228, and the bottom of the material retention hopper 228 is connected to four locking parts 229. The end of each locking part 229 is connected to a rubber folding tube 230, and the end of each rubber folding tube 230 is respectively connected to the top of a corresponding distribution tank 207, and is connected to the interior of the distribution tank 207.

[0028] When using, such as Figure 4 as well as Figure 8As shown, a proper amount of magnesium oxide powder is poured into the stagnation hopper 228. Under the natural gravity, the lower layer of powder will fall freely under the passage condition constructed by the locking member 229, and will be evenly transferred to the interior of the distribution tank 207 through the rubber folding tube 230. As the amount of powder in the distribution tank 207 increases, the downward pressure applied to the blocking inner plate 213 also continues to increase. Since the expansion seat 211 and the first metal slide bar 212 are movably connected, the blocking inner plate 213 can slowly move downward inside the distribution tank 207. At this time, the active spring member 214 connected to the expansion seat 211 is in a stretched state. When the blocking inner plate 213 drops below the angled square joint 208, the blocking effect on the opening of the angled square joint 208 is lost. 08 structure is inclined, and the transferred powder will further flow into the channel constructed by the angled square joint 208, and then be transported by the drainage circular pipe 209, and finally be discharged from the end of the drainage circular pipe 209. Because the main structure of the equipment is open, the relevant personnel can timely capture the real-time operating status of the equipment, and adjust the feeding rate in the distribution tank 207 by controlling the injection amount in the hopper 228, so that the feeding amount in the distribution tank 207 is less than the release amount. During the process, the reverse force of the active spring part 214 and the downward pressure exerted by the material on the sealing inner plate 213 are used to force the sealing inner plate 213 to reciprocate up and down inside the distribution tank 207, and intermittently complete the blocking of the opening of the angled square joint 208, so as to realize the control of the discharge amount at the end of the drainage circular pipe 209.

[0029] In more specific scenarios, such as Figure 6 as well as Figure 7 As shown, a connecting support plate 220 is provided at the bottom of the distributing tank 207, and a plurality of arc-shaped reverse thrust blades 221 are installed above the connecting support plate 220. The connecting support plate 220 is used to drive the plurality of arc-shaped reverse thrust blades 221 to rotate at high speed. After the powder is transported and discharged through the drainage tube 209, it directly contacts the rotating arc-shaped reverse thrust blades 221, and the powder is thrown toward the inner wall of the central hole 201 at high speed. An inner cavity 205 is provided at the center of the first square base 204, and two hollow frames 215 are installed on the inner wall of the inner cavity 205. A driving member 216 and a roller bearing member 217 are respectively installed inside the two hollow frames 215. A coupling 218 is inserted into the inner surface wall of the inner shaft of the roller bearing member 217. The top of the coupling 218 is connected to the output end of the driving member 216, and the bottom end of the coupling 218 is fixed with an extension member 219, which is fixedly connected to the connecting support plate 220.

[0030] During use, after the driving member 216 is turned on, the physical properties of the roller bearing member 217 are utilized, and the power generated by the driving member 216 is acted on the connecting support plate 220 by the coupling 218, which is used to drive the arc-shaped reverse thrust fan blade 221 on the connecting support plate 220 to rotate at high speed. During the process, the powder discharged from the end of the distribution tank 207 continues to contact the high-speed rotating arc-shaped reverse thrust fan blade 221, and utilizes the slapping effect on the powder particles. The powder that contacts the arc-shaped reverse thrust fan blade 221 continues to move toward the inner wall of the primary screen drum 202 at high speed. After the two come into contact, the impact external force is used to break up the powder on the one hand, and on the other hand, the powder particles that pass through can quickly enter the primary screen drum 202 structure and be quickly discharged.

[0031] In a more optimized solution, such as Figure 2 、 Figure 6 as well as Figure 8 As shown, a group of assembling brackets 203 are installed above the assembly pallet 1, and a second square base 222 is merged between the group of assembling brackets 203. A pneumatic telescopic member 223 is connected to the top of the second square base 222. The axial end of the pneumatic telescopic member 223 is sleeved with a cross frame 224, and the cross frame 224 is fixedly connected to the top of the first square base 204. A group of outer straight arms 225 are equidistantly connected to the outer wall of the cross frame 224, and a second metal slide bar 226 is inserted at the end of each outer straight arm 225. Each second metal slide bar 226 is movably connected to a corresponding associated part. A material aggregation funnel 231 is fixed directly below the assembly pallet 1. The material aggregation funnel 231 is connected to the central hole 201, and the bottom of the material aggregation funnel 231 is connected to a discharge joint 232. An electric control valve 233 is provided inside the discharge joint 232.

[0032] When in use, the pneumatic telescopic part 223 is started, and its inner shaft can freely extend and retract in the cavity. When the inner shaft is in the extended state, the cross frame 224 is interconnected with the first square base 204, thereby driving the first square base 204 and its connected components to move slowly downward. The purpose is to adjust the height of the connecting support plate 220 so that the arc-shaped reverse thrust fan blade 221 can throw the material in the middle of the primary screen drum 202 to avoid the material from being randomly dispersed to the opening of the primary screen drum 202, causing waste and environmental pollution. During the execution process, the second metal slide bar 226 is used to be connected with the related parts to limit the main body from multiple directions to ensure the stability of the component during movement. The large volume of fixed impurities filtered out slides along the inner wall of the primary screen drum 202 under the action of gravity and gathers inside the aggregation funnel 231. The opening and closing of the channel in the discharge joint 232 is regulated by the electric control valve 233 to complete the discharge of impurities.

[0033] Example 2, as Figure 3 and Figure 5As shown, the outer wall of the primary screen drum 202 is provided with a secondary screening mechanism 300, and the secondary screening mechanism 300 includes a reinforced jacket 301, which is fixedly connected to the outer wall of the primary screen drum 202, and a group of third metal slide bars 302 are inserted into the interior of the reinforced jacket 301, and an inner ring sleeve 303 is movably sleeved between the outer walls of a group of third metal slide bars 302, and a flat filter plate 304 is connected to the bottom of the inner ring sleeve 303, and an outer ring sleeve 305 is connected to the top of the flat filter plate 304, and a lower isolation sleeve 306 is installed above the assembly support plate 1. The diameter range of the lower isolation sleeve 306 is consistent with that of the flat filter plate 304, and a vibrating mechanical part 307 is provided inside the flat filter plate 304, and the outer wall of the primary screen drum 202 is connected with an arc drainage sleeve 308, and a jacket is installed above the outer ring sleeve 305, and an upper isolation sleeve 311 is inserted in the jacket, and a plurality of hollow discharge troughs 310 are equidistantly provided inside the assembly support plate 1.

[0034] During use, the powder particles after the initial filtration will be discharged from the inner structure of the primary screen drum 202 and discharged from multiple directions. The particles moving at high speed will be blocked by the upper isolation sleeve 311, and the particles passing through at low speed will slide along the outer wall of the primary screen drum 202. After contacting the arc drainage sleeve 308, the inclined structure is used to guide the powder to gather in the flat filter plate 304. The particles blocked by the upper isolation sleeve 311 will slide freely along its inner wall into the flat filter plate 304. After turning on the vibration mechanical part 307, the vibration effect directly acts on the flat filter plate 304, and the particles on it are subjected to secondary filtration again. The processed particles are discharged from the hollow discharge trough 310.

[0035] In a more optimized solution, such as Figure 3 As shown, an inner ring sleeve 303 is movably provided between the outer walls of a group of third metal slide bars 302 , and a hard spring 309 is provided on the outer wall of each third metal slide bar 302 , which is used to offset the external force of lateral vibration.

[0036] When in use, after the vibrating mechanical part 307 is turned on, the direction of the vibration wave mainly spreads horizontally. During execution, since the third metal slide bar 302 and the inner ring sleeve 303 are movably connected, the slight deviation caused by the vibration forces the inner ring sleeve 303 and its connected components to move slightly. The impact effect generated is handled by the hard spring 309, thereby avoiding direct collision with the device body and causing increased vibration.

[0037] 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 filtration device for pre-treating magnesium oxide, characterized in that: It comprises an assembly support plate (1) and an intermittent dispersion component (200), wherein the intermittent dispersion component (200) is located above the assembly support plate (1); The intermittent dispersion assembly (200) includes a primary sieve drum (202) and four distribution tanks (207). The distribution tanks (207) are used for secondary retention of powder. The outer wall of each distribution tank (207) is connected to a square joint (208) with an angle, and the square joint (208) with an angle is located slightly below the distribution tank (207). The end of each square joint (208) with an angle is connected to a drainage pipe (209). The interior of each distribution tank (207) is provided with a sealing inner plate (213). The sealing inner plate ( 213) is movably connected to the inner wall of the distribution tank (207) for controlling the powder retention amount. A connecting support plate (220) is provided below the distribution tank (207), and a plurality of arc-shaped reverse thrust blades (221) are installed above the connecting support plate (220). The connecting support plate (220) is used to drive the plurality of arc-shaped reverse thrust blades (221) to rotate at high speed. When the powder is transported and discharged through the drainage tube (209), it directly contacts the rotating arc-shaped reverse thrust blades (221), and the powder is thrown toward the inner wall of the central hole (201) at high speed.

2. The pre-treatable magnesium oxide filter device according to claim 1, characterized in that: The intermittent dispersion component (200) further includes a central hole (201), the central hole (201) being opened at the center of the assembly support plate (1), the primary sieve drum (202) being connected to the inner wall of the central hole (201), a first square base (204) being provided above the primary sieve drum (202), four external tripods (206) being equidistantly installed on the outer wall of the first square base (204), and each of the distribution tanks (207) being connected to a corresponding external tripod (206).

3. The pre-treatable magnesium oxide filter device according to claim 1, characterized in that: A lower sealing plate (210) is installed at the bottom of each of the material distribution tanks (207), and a group of extension seats (211) are installed at the bottom of each of the lower sealing plates (210). A first metal slide bar (212) is movably inserted into the interior of each of the extension seats (211), and the top end of each group of the first metal slide bars (212) is respectively inserted into the interior of a corresponding sealing inner plate (213). An active spring member (214) is provided between each of the extension seats (211) and the bottom of a corresponding first metal slide bar (212).

4. The pre-treatable magnesium oxide filter device according to claim 2, characterized in that: An inner cavity (205) is provided at the center of the first square base (204), and two hollow frames (215) are installed on the inner wall of the inner cavity (205). A driving member (216) and a roller bearing member (217) are respectively installed inside the two hollow frames (215). A coupling (218) is inserted into the inner surface wall of the inner shaft of the roller bearing member (217), and the top end of the coupling (218) is connected to the output end of the driving member (216). An extension member (219) is fixed to the bottom end of the coupling (218), and the extension member (219) is fixedly connected to the connecting support plate (220).

5. The pre-treatable magnesium oxide filter device according to claim 1, characterized in that: A group of assembling brackets (203) is installed above the assembly support plate (1), and a second square base (222) is merged between the group of assembling brackets (203). A pneumatic telescopic member (223) is connected to the top of the second square base (222). The shaft end of the pneumatic telescopic member (223) is sleeved with a cross frame (224), and the cross frame (224) is fixedly connected to the top of the first square base (204). A group of associated members are evenly distributed on the outer wall of the second square base (222), and a lifting frame (227) is installed on the top of each associated member. A group of outer straight arms (225) are evenly connected to the outer wall of the cross frame (224), and a second metal slide rod (226) is inserted at the end of each outer straight arm (225). Each second metal slide rod (226) is movably connected to a corresponding associated member.

6. The pre-treatable magnesium oxide filter device according to claim 5, characterized in that: A material hopper (228) is fixedly connected to the top of a group of lifting frames (227), and four locking pieces (229) are connected to the bottom of the material hopper (228). The end of each locking piece (229) is connected to a rubber folding tube (230), and the end of each rubber folding tube (230) is respectively connected to the top of a corresponding material distribution tank (207) and is connected to the interior of the material distribution tank (207). A material collection funnel (231) is fixed directly below the assembly support plate (1), and the material collection funnel (231) is connected to the central hole (201). The bottom of the material collection funnel (231) is connected to a discharge joint (232), and an electric control valve (233) is provided inside the discharge joint (232).

7. The pre-treatable magnesium oxide filter device according to claim 1, characterized in that: The outer wall of the primary screen cylinder (202) is provided with a secondary screening mechanism (300), and the secondary screening mechanism (300) includes a reinforcing outer sleeve (301), and the reinforcing outer sleeve (301) is fixedly connected to the outer wall of the primary screen cylinder (202), and a group of third metal slide bars (302) are inserted into the interior of the reinforcing outer sleeve (301), and an inner ring sleeve (303) is movably provided between the outer walls of a group of the third metal slide bars (302), and the outer wall of each of the third metal slide bars (302) is provided with a hard spring (309), and the hard spring (309) is used to offset the external force of lateral vibration.

8. The pre-treatable magnesium oxide filter device according to claim 7, characterized in that: A flat filter plate (304) is connected below the inner ring sleeve (303), an outer ring sleeve (305) is connected above the flat filter plate (304), a lower isolation sleeve (306) is installed above the assembly support plate (1), the diameter range of the lower isolation sleeve (306) is consistent with that of the flat filter plate (304), and a vibrating mechanical part (307) is provided inside the flat filter plate (304).

9. The pre-treatable magnesium oxide filter device according to claim 8, characterized in that: The outer wall of the primary screen drum (202) is connected to a curved drainage sleeve (308), a jacket is installed above the outer ring sleeve (305), and an upper isolation sleeve (311) is inserted into the jacket, and a plurality of hollow feed troughs (310) are equidistantly provided inside the assembly support plate (1).

10. A filtering method for pre-treating a magnesium oxide filter device, characterized in that: A pre-treatable magnesium oxide filter device according to any one of claims 1 to 9 is used, comprising the following steps: S1: Under the action of gravity, the magnesium oxide powder in the hopper (228) flows into each distribution tank (207) from top to bottom in equal amounts. As the volume of powder in the distribution tank (207) increases, the downward pressure applied to the blocking inner plate (213) will continue to increase. When the blocking inner plate (213) moves down to the end of the distribution tank (207), the opening of the angled square joint (208) loses its blockage, and the powder can be further transported by the drainage tube (209). At this time, the active spring member (214) is in a stretched state. S2: The driving member (216) provides power to realize the high-speed rotation of the arc-shaped reverse thrust blade (221) on the connecting support plate (220). When the powder is discharged from the end of the drainage tube (209), it directly contacts the rotating arc-shaped reverse thrust blade (221), and further throws the powder toward the inner wall of the primary sieve cylinder (202) at high speed. The impact effect generated when the powder contacts the inner wall of the primary sieve cylinder (202) is utilized to achieve the purpose of breaking up on the one hand, and on the other hand, the powder particles that pass through are continuously filtered, while the larger fixed impurities slide down quickly along the inner wall of the primary sieve cylinder (202); S3: By controlling the powder injection amount in the stagnation hopper (228), ensuring that the replenishment amount in the distribution tank (207) is less than the release amount, the reverse force of the active spring member (214) is used to complete the position adjustment of the blocking inner plate (213), and intermittently complete the blocking of the opening of the angled square joint (208); S4: The initially filtered powder is continuously discharged from the inner structure of the primary sieve drum (202) and dispersed on the outer wall of the primary sieve drum (202). The free-falling powder is drained by the arc-surface drainage sleeve (308), while the high-speed moving powder is blocked by the upper isolation sleeve (311) and finally placed above the flat filter plate (304); S5: After the vibration mechanical part (307) is started, the mechanical vibration generated continuously affects the main body of the flat filter plate (304), further completing the secondary screening and filtration of the powder.

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