A laterite nickel ore dust removal ash blowing device and process method

Abstract

The present invention relates to the field of dust removal ash blowing, specifically a laterite nickel ore dust removal ash blowing device and process method, including a blowing tube and a mixing tube, a drop tube is installed between the blowing tube and the mixing tube, the tops of the blowing tube and the mixing tube are connected with a feed pipe, the top of the mixing tube is connected with a raw material pipe, a plurality of circumferentially evenly distributed blowing vortex mechanisms are installed on the inner wall of the blowing tube, a blowing barrel is installed at the bottom of the blowing tube, a blowing tube is connected to the outside of the blowing barrel, the blowing tube is connected with a blowing nozzle, the blowing vortex mechanism is connected with a blowing air supply assembly, the blowing air supply assembly is connected to the blowing barrel and the blowing tube, a blowing anti-blocking mechanism is installed inside the blowing tube, a mixing mechanism is installed inside the mixing tube, and a vortex auxiliary mechanism is installed inside the blowing tube. The blowing vortex mechanism of the present invention can spray the mixed material, so that the mixed material rotates inside the blowing tube, so that the material forms a continuously rotating vortex, and avoids the accumulation of the material inside the blowing tube.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal ash blowing, and in particular to a laterite nickel ore dust removal ash blowing device and a process method. Background Art

[0002] Since laterite nickel ore has the characteristics of high moisture content, high crystal water content, fine particle size, and many impurities (1), the amount of dust removed by each dust collector during sintering production is large, far more than that of ordinary iron ore sintering. Traditionally, dust is collected by dust collectors and then transported by car or directly transported back to the process system via belt conveyors to be re-mixed, resulting in large secondary dust. The moisture content of the mixed material is difficult to control and fluctuates greatly, affecting sintering production, often causing a vicious cycle in the production process, increasing production consumption and costs. At the same time, because the chemical composition of dust is different from that of raw materials, it affects the stability of sintered ore quality to a certain extent. The chemical composition of sintering dust varies according to the different raw materials used in the sintering production process, but generally has a large amount of flue gas, large fluctuations in dust volume, large fluctuations in dust properties, easy moisture absorption, and strong adhesion.

[0003] The main chemical components of laterite nickel ore sintering dust ash include: TFe, CaO, SiO2, MgO, Al2O3, Ni, Cr, etc., which have high recycling value. Discarding it will cause greater environmental protection problems. At present, in order to avoid the dust generated when the dust ash is transported back to the process system by cars or conveyors to re-participate in the batching, the recycling of laterite nickel ore sintering dust ash mostly adopts pneumatic conveying technology. Pneumatic conveying technology is a technology that uses compressed gas airflow to drive the dust ash particles to flow inside the pipeline, so that the dust ash can be sprayed into the process system for reuse.

[0004] In the public document "Design Features and Applications of Pneumatic Conveying of Sintering Dust Ash - Pan Liaoting, Lan Jian, Pan Guoshuai, Zhao Lifang", it is recorded that the technical difficulties in using pneumatic conveying of sintering dust ash are: First, the technical problems of dust ash being easily blocked by moisture, impurities in the ash, easy wear of pipelines due to fast flow rate, easy jamming of valves on equipment, and easy corrosion of equipment and pipelines must be solved; second, a higher ash-to-gas ratio must be considered to achieve dense phase conveying, thereby reducing investment and operating costs.

[0005] In the prior art, for example, the utility model patent with publication number CN215002859U discloses a device for directly conveying and blowing dust ash into a rotary kiln for roasting, which includes: a receiving tank, a dome valve for receiving dust ash is arranged on the top of the receiving tank, and the dust ash is stored in a storage bin on the top of the receiving tank. When the system needs it, the dome valve at the inlet of the receiving tank is opened to load the dust ash into the receiving tank; a blowing tank, a dome valve connected to the receiving tank is arranged on the top of the blowing tank, and the dust ash enters the blowing tank from the dome valve; a pressurized pipeline, the blowing tank is also provided with a discharge pipe, the pressurized pipeline includes a blowing air supply pipe, the discharge pipe is connected to the blowing air supply pipe, the pressurized pipeline is externally connected to compressed air, and the dust ash in the discharge pipe is output, thereby achieving the effect of blowing and conveying the dust ash by compressed air.

[0006] Although the above-mentioned public patent can realize pneumatic conveying of dust ash, its specification records: a weight sensor is provided at the contact position between the support frame and the bottom of the blowing tank. The weight sensor can obtain the mass of the dust ash inside the blowing tank by weighing the blowing tank, so as to facilitate the addition of dust ash when there is less dust ash. It can be seen that a certain mass of dust ash is added to the inside of the blowing tank at one time each time, and the dust ash accumulates inside the blowing tank, and then flows slightly under the influence of the gas in the third branch connected to the bottom of the blowing tank, so as to facilitate the dust ash to enter the discharge pipe.

[0007] However, the dust dust accumulates easily inside the spray tank and forms a backlog. Moreover, when the dust dust inside the spray tank is damp, the dust dust inside the spray tank will gradually become compacted and agglomerated and adhere to the inside of the spray tank. In addition, there is no structure to prevent the pipeline from being blocked, so the pipeline is prone to blockage during transportation.

[0008] Therefore, the present invention provides a laterite nickel ore dust blowing device and process method to solve the above problems. Summary of the invention

[0009] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a laterite nickel ore dust blowing device and process method to solve the defects of the existing device for directly transporting and blowing dust into a rotary kiln for roasting.

[0010] In order to achieve the above object, the technical solution adopted by the present invention is:

[0011] A laterite nickel ore dust blowing device comprises a blowing tube and a mixing tube, a dropping tube is fixedly installed between the top of the blowing tube and the bottom of the mixing tube, the tops of the blowing tube and the mixing tube are both connected to a feeding pipe, the top of the mixing tube is connected to a raw material pipe, a plurality of circumferentially evenly distributed blowing vortex mechanisms are installed on the inner wall of the blowing tube, a blowing barrel is installed at the bottom of the blowing barrel, a blowing pipe connected to the interior of the blowing barrel is fixedly connected to the outer side surface of the blowing barrel, the blowing pipe is connected to a blowing nozzle, the blowing vortex mechanism is connected to a blowing air supply assembly, the blowing air supply assembly is respectively connected to the blowing barrel and the blowing tube, a blowing anti-blocking mechanism is rotatably installed inside the blowing tube, a mixing mechanism is rotatably installed inside the mixing tube, and a vortex auxiliary mechanism connected to the mixing mechanism is installed inside the blowing tube.

[0012] Preferably, the feed pipe includes a mixing feed pipe and a blowing feed pipe, the mixing feed pipe is connected to the top of the mixing barrel, the blowing feed pipe is connected to the top of the blowing barrel, and an electromagnetic reversing valve is connected between the mixing feed pipe and the blowing feed pipe.

[0013] Preferably, a blanking hole plate is coaxially fixedly installed inside the blanking barrel, and a plurality of blanking holes are penetrated from top to bottom of the blanking hole plate, and a plurality of blanking baffle boxes are fixedly installed on the outside of the blanking barrel, and a blanking baffle groove located below the blanking hole plate is penetrated between the blanking baffle box and the inner wall of the blanking barrel, and a blanking baffle sealingly fitted with the bottom surface of the blanking hole plate is slidably installed in the blanking baffle groove, and a baffle cylinder is installed on the outside of the blanking baffle box, and the telescopic end of the baffle cylinder penetrates into the blanking baffle box and is connected to the blanking baffle.

[0014] Preferably, the vortex injection mechanism comprises an inclined hole plate slot, an inclined hole plate for injection, an inclined hole for injection, a vortex air supply box, a vortex air distribution pipe, and a vortex air supply ring pipe;

[0015] The side of the blowing tube is penetrated by a plurality of circumferentially evenly distributed inclined hole plate grooves, a blowing inclined hole plate is fixedly installed inside each of the inclined hole plate grooves, a plurality of blowing inclined holes are penetrated between the inner and outer side surfaces of the blowing inclined hole plate from top to bottom, a vortex air supply box is fixedly installed on the outer side of each of the blowing inclined hole plates, the top of each of the vortex air supply boxes is connected to a vortex air distribution pipe, the top ends of the plurality of vortex air distribution pipes are commonly connected to a vortex air supply ring pipe, and the vortex air supply ring pipe is connected to the blowing air supply assembly.

[0016] Preferably, the spray air supply assembly includes a vortex air supply pipe, a spray air supply pipe, a spray pressurized air supply pipe, and a pressurized air supply branch pipe;

[0017] The vortex air supply pipe is connected to the vortex air supply ring pipe, the injection air supply pipe is connected to the interior of the injection barrel, and the injection pressurized air supply pipe is located above the injection pipe and is connected to the interior of the injection pipe through a plurality of pressurized air supply branches equidistantly distributed on the left and right.

[0018] Preferably, the spray anti-blocking mechanism comprises an anti-blocking rotating ring, an anti-blocking fan blade, an anti-blocking lever, and a guide cone ring;

[0019] The blowing pipe is composed of a plurality of blowing branches fixedly connected by flanges, each of the pressurized air supply branch pipes is connected to one of the blowing branches, and two anti-blocking rotating rings are rotatably installed inside each of the blowing branches, and a plurality of circumferentially evenly distributed anti-blocking fan blades are fixedly connected between the two anti-blocking rotating rings, and the plurality of anti-blocking fan blades are located at the connection point between the pressurized air supply branch pipe and the blowing branch pipe. A plurality of circumferentially evenly distributed anti-blocking levers are fixedly connected to the right side surface of each anti-blocking rotating ring located on the right side of the anti-blocking fan blade, and a guide cone ring with an annular inclined surface on the inner side is coaxially fixedly installed on the left side surface of each anti-blocking rotating ring located on the left side of the anti-blocking fan blade.

[0020] Preferably, the mixing mechanism comprises a circulating material barrel, a circulating material hole, a mixing motor, a driving spindle, a circulating auger, a mixing driving rod, a mixing ring, a mixing rod, and a mixing inclined plate;

[0021] A circulating material barrel is coaxially fixedly installed at the bottom of the mixing barrel, a plurality of circulating material holes are penetrated at the bottom of the side of the circulating material barrel, a mixing motor is fixedly installed at the top of the mixing barrel, and the rotating shaft of the mixing motor is coaxially fixedly connected with a driving main shaft extending into the circulating material barrel, and a circulating auger located inside the circulating material barrel is fixedly installed on the outer side of the driving main shaft, and a plurality of mixing driving rods located above the circulating material barrel are fixedly installed on the outer side of the driving main shaft, and two mixing rings are fixedly installed between the bottoms of the plurality of mixing driving rods, and mixing rods are fixedly installed at the bottoms of the two mixing rings, wherein the mixing rod at the bottom of one of the mixing rings fits with the inside of the mixing barrel, and the mixing rod at the bottom of the other mixing ring fits with the outer side surface of the circulating material barrel, and a plurality of mixing inclined plates equidistantly distributed up and down are fixedly connected between every two radially corresponding mixing rods.

[0022] Preferably, the vortex auxiliary mechanism includes a material distribution cone, a scraper connecting rod, a blowing tube scraper, and a blowing guide plate;

[0023] The bottom end of the driving main shaft extends to the interior of the blowing tube, and a dividing cone disk is coaxially fixedly installed on its bottom end, a plurality of scraper connecting rods uniformly distributed in the circumference are fixedly installed on the outer surface of the dividing cone disk, and a blowing tube scraper that fits the inner wall of the blowing tube is fixedly connected to the bottom of each scraper connecting rod, and a blowing guide plate is fixedly installed on one side of each blowing tube scraper, and a filter residue net that is located above the dividing cone disk and bulges upward in the middle is coaxially fixedly installed on the outer side of the driving main shaft, the outer circumferential surface of the filter residue net is rotatably matched with the inner wall of the blowing tube, and a slag discharge manhole is provided on the top of the blowing tube.

[0024] Preferably, a discharge guide plate inclined toward the lower right is fixedly installed inside the blowing barrel, and the right end of the discharge guide plate is located above the left end of the blowing pipe. A blowing guide arc plate is fixedly installed inside the blowing barrel, and the left end of the blowing guide arc plate is located above the blowing air supply pipe, and the right end is fixedly connected to the right end of the discharge guide plate.

[0025] A method for using a laterite nickel ore dust blowing device, characterized in that it comprises the following steps:

[0026] a. The mixing feed pipe and the raw material pipe add dust and raw materials into the mixing barrel, and the mixing mechanism mixes the two. The circulating auger lifts the materials at the bottom of the mixing barrel to the top of the mixing barrel through the circulating barrel, so that the dust and raw materials are fully mixed;

[0027] b. The baffle cylinder drives the blanking baffle to move, so that the blanking hole is opened, and the mixed material inside the mixing barrel falls into the inside of the blowing barrel through the blanking barrel. When the dust removal ash does not need to be mixed with the raw materials, the electromagnetic reversing valve can be switched to allow the dust removal ash to be directly added to the inside of the blowing barrel from the blowing feed pipe;

[0028] c. The filter net can filter the large particles in the material entering the spray barrel and can clean it from the slag discharge manhole. After the filtered material falls onto the rotating material distribution cone, it can be evenly scattered downward. The airflow sprayed from several circumferentially distributed spraying inclined holes can gasify the dust removal ash, forming a rotating dust removal ash vortex in the spray barrel;

[0029] d. When the spray air supply pipe supplies air to the inside of the spray barrel, the dust dust forming a vortex can be blown into the spray pipe and sprayed out from the spray nozzle, thereby realizing the spray process of the dust dust. The spray pressurized air supply pipe and multiple pressurized air supply branches can supply pressurized air to the dust dust flowing inside the spray pipe, and can also drive the spray anti-blocking mechanism to rotate to avoid clogging of the spray pipe.

[0030] The beneficial effects of the present invention are:

[0031] 1. The mixed materials in the mixing barrel can enter the blowing barrel through the blanking barrel. After the mixed materials enter the blowing barrel through the blanking barrel, the blowing vortex mechanism can spray the mixed materials to make the mixed materials rotate inside the blowing barrel, so that the materials form a continuously rotating vortex, which can not only avoid the accumulation of materials inside the blowing barrel, but also the airflow can dry the materials when the materials rotate.

[0032] 2. When the material inside the blowing barrel gradually increases, the vortex-rotating material gradually falls downward into the inside of the blowing barrel, and the blowing air supply component simultaneously provides compressed air to the inside of the blowing barrel, which can blow the material inside the blowing barrel into the inside of the blowing pipe and then be blown into the process system by the blowing nozzle for utilization. To avoid the reduction of air pressure inside the blowing pipe when the length of the blowing pipe is long, the blowing pipe is connected to the blowing air supply component at intervals along the length direction of the blowing pipe, thereby pressurizing the inside of the blowing pipe to prevent the inside of the blowing pipe from reducing the efficiency of material blowing and conveying due to the reduction of air pressure, or even causing the pipe to be blocked by materials.

[0033] 3. The inside of the spray pipe is equipped with a spray anti-blocking mechanism, which includes an anti-blocking rotating ring, anti-blocking blades, an anti-blocking lever, and a guide cone ring. The airflow of the spray air supply assembly can drive the multiple anti-blocking blades to rotate, thereby enabling the anti-blocking lever to rotate inside the spray pipe, thereby preventing the material from being blocked inside the spray pipe.

[0034] 4. The mixing mechanism can fully mix the dust in the mixing barrel with the added raw materials. When the dust does not need to be mixed with other materials, the dust can be directly added to the inside of the spray barrel through the feed pipe, so that the dust can be vortexed and directly sprayed into the process system for use.

[0035] 5. The vortex auxiliary mechanism rotates inside the spray barrel, and can evenly scatter the dust material entering the spray barrel to the spray vortex mechanism below, so as to avoid a large amount of material falling all at once, and the spray vortex mechanism will not have time to vortex it. The material falls directly into the spray barrel and accumulates, which is not conducive to the spraying effect of the material. At the same time, the vortex auxiliary mechanism can also clean the dust adhering to the inner wall of the spray barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front view schematic diagram of the present invention.

[0037] Figure 2 It is a three-dimensional schematic diagram of the present invention.

[0038] Figure 3 It is a front cross-sectional view of the present invention.

[0039] Figure 4It is a front perspective cross-sectional view of the present invention.

[0040] Figure 5 For the present invention Figure 3 Enlarged view of point A in the middle.

[0041] Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle.

[0042] Figure 7 For the present invention Figure 1 Cross-sectional view at CC.

[0043] Figure 8 For the present invention Figure 7 Enlarged view of point D in the middle.

[0044] Fig. 9 For the present invention Figure 3 Enlarged view of point E in the middle.

[0045] Fig.10 For the present invention Figure 4 Enlarged view of point F in the middle.

[0046] Fig.11 For the present invention Figure 3 Enlarged view of point G in the middle.

[0047] Fig.12 For the present invention Figure 4 Enlarged view of point H in the middle.

[0048] Fig.13 For the present invention Figure 4 Enlarged view of point I in the middle.

[0049] In the figure: 1. Blowing cylinder; 2. Mixing cylinder; 3. Blanking cylinder; 4. Feeding pipe; 401. Mixing feeding pipe; 402. Blowing feeding pipe; 403. Solenoid reversing valve; 5. Raw material pipe; 6. Blowing vortex mechanism; 7. Blowing cylinder; 8. Blowing pipe; 801. Blowing branch pipe; 9. Blowing nozzle; 10. Blowing air supply assembly; 11. Mixing mechanism; 12. Vortex auxiliary mechanism; 13. Blowing anti-blocking mechanism; 14. Blanking orifice plate; 15. Blanking hole; 16. Blanking baffle box; 17. Blanking baffle groove; 18. Blanking baffle; 19. Baffle cylinder; 20. Inclined orifice groove; 21. Blowing inclined orifice plate; 22. Blowing inclined hole; 23. Vortex air supply box; 24. Vortex air distributor; 25. Vortex air supply ring tube; 26. Vortex air supply tube; 27. Injection air supply tube; 28. Injection pressurized air supply tube; 29. ​​Pressurized air supply branch tube; 30. Anti-blocking swivel ring; 31. Anti-blocking fan blade; 32. Anti-blocking lever; 33. Guide cone ring; 34. Circulating barrel; 35. Circulating material hole; 36. Driving spindle; 37. Circulating auger; 38. Mixing drive rod; 39. Mixing ring; 40. Mixing rod; 41. Mixing inclined plate; 42. Distributing cone disk; 43. Scraper connecting rod; 44. Injection barrel scraper; 45. Injection guide plate; 46. Filter residue net; 47. Slag discharge manhole; 48. Discharge guide plate; 49. Injection guide arc plate. DETAILED DESCRIPTION

[0050] The following will refer to the attached Figure 1 To Attachment Fig.13 Various embodiments of the present invention are described in detail.

[0051] Embodiment 1, as attached Figure 1-Figure 13 As shown, a laterite nickel ore dust blowing device includes a blowing tube 1 and a mixing tube 2, both of which are arranged on a steel structure frame, the mixing tube 2 is located above the blowing tube 1, and a weight sensor is arranged between the mixing tube 2 and the steel structure frame for detecting the mass of the dust inside the mixing tube 2, the mixing tube 2 can fully mix the dust and raw materials, a blanking tube 3 is fixedly installed between the top of the blowing tube 1 and the bottom of the mixing tube 2, the mixed material inside the mixing tube 2 can enter the blowing tube 1 through the blanking tube 3, the tops of the blowing tube 1 and the mixing tube 2 are both connected with a feeding pipe 4, which can add dust to the inside of the blowing tube 1 and the mixing tube 2 respectively, and the top of the mixing tube 2 is connected with a raw material pipe 5, which can add materials that need to be mixed with dust into the mixing tube 2.

[0052] A plurality of circumferentially evenly distributed spray vortex mechanisms 6 are installed on the inner wall of the spray tube 1. After the mixed material enters the spray tube 1 through the blanking tube 3, the spray vortex mechanism 6 can spray the mixed material to make the mixed material rotate inside the spray tube 1, so that the material forms a continuously rotating vortex, which can not only avoid the accumulation of the material inside the spray tube 1, but also the airflow can dry the material when the material rotates.

[0053] A blowing barrel 7 is installed at the bottom of the blowing tube 1, and a blowing pipe 8 connected to the interior thereof is fixedly connected to the outer surface of the blowing barrel 7, and the blowing pipe 8 is connected to a blowing nozzle 9. The blowing vortex mechanism 6 is connected to a blowing air supply component 10, and the blowing air supply component 10 is connected to a compressed air supply source and can provide compressed air to the blowing vortex mechanism 6. The blowing air supply component 10 is respectively connected to the blowing barrel 7 and the blowing pipe 8.

[0054] When the material inside the blowing barrel 1 gradually increases, the vortex-rotating material gradually falls downward to the inside of the blowing barrel 7, and the blowing air supply component 10 simultaneously provides compressed air to the inside of the blowing barrel 7, so that the material inside the blowing barrel 7 can be blown into the inside of the blowing pipe 8, and then blown into the process system by the blowing nozzle 9 for utilization. In order to avoid the air pressure inside the blowing pipe 8 being reduced when the length of the blowing pipe 8 is long, the blowing pipe 8 is connected to the blowing air supply component 10 at intervals in the length direction, thereby pressurizing the inside of the blowing pipe 8 to prevent the inside of the blowing pipe 8 from reducing the efficiency of material blowing and conveying due to the reduction of air pressure, and even causing material blockage.

[0055] The blowing tube 8 is rotatably provided with a blowing anti-blocking mechanism 13 . The blowing anti-blocking mechanism 13 can rotate inside the blowing tube 8 driven by the airflow of the blowing air supply assembly 10 , thereby preventing the material from being blocked inside the blowing tube 8 .

[0056] The mixing barrel 2 is internally rotatably installed with a mixing mechanism 11, which can fully mix the dust ash in the mixing barrel 2 with the added raw materials. When the dust ash does not need to be mixed with other materials, the dust ash can be directly added to the inside of the blowing barrel 1 through the feeding pipe 4, so that the dust ash is vortexed and directly sprayed into the process system for use. The blowing barrel 1 is internally installed with a vortex auxiliary mechanism 12 connected to the mixing mechanism 11. When the mixing mechanism 11 rotates, it can drive the vortex auxiliary mechanism 12 to rotate inside the blowing barrel 1, and can evenly scatter the dust ash material entering the blowing barrel 1 into the inside of the blowing vortex mechanism 6 below, so as to avoid a large amount of material falling all at once, and the blowing vortex mechanism 6 has no time to vortex it, and the material directly falls into the blowing barrel 7 to form an accumulation, which is not conducive to the blowing effect of the material. At the same time, the vortex auxiliary mechanism 12 can also clean the dust ash adhering to the inner wall of the blowing barrel 1.

[0057] Embodiment 2, based on embodiment 1, as shown in the attached Figure 1-Figure 4 As shown, the feed pipe 4 includes a mixing feed pipe 401 and a blowing feed pipe 402. The mixing feed pipe 401 is connected to the top of the mixing barrel 2, and the blowing feed pipe 402 is connected to the top of the blowing barrel 1. An electromagnetic reversing valve 403 is connected between the mixing feed pipe 401 and the blowing feed pipe 402. The electromagnetic reversing valve 403 is connected to a power supply and a remote controller. By remotely controlling the connection direction of the electromagnetic reversing valve 403, the effect of adding dust removal ash to the inside of the blowing barrel 1 and the mixing barrel 2 respectively can be controlled.

[0058] Embodiment 3, based on embodiment 1, as shown in the attached Fig.11 , Fig.12 As shown, a blanking hole plate 14 is coaxially fixedly installed inside the blanking barrel 3, and a plurality of blanking holes 15 are penetrated from top to bottom of the blanking hole plate 14, and a plurality of blanking baffle boxes 16 are fixedly installed on the outside of the blanking barrel 3, and a blanking baffle groove 17 located below the blanking hole plate 14 is penetrated between the blanking baffle box 16 and the inner wall of the blanking barrel 3, and a blanking baffle 18 sealingly fitted with the bottom surface of the blanking hole plate 14 is slidably installed in the blanking baffle groove 17, and a baffle cylinder 19 is installed on the outside of the blanking baffle box 16, and the telescopic end of the baffle cylinder 19 penetrates into the blanking baffle box 16 and is connected to the blanking baffle 18;

[0059] As attached Fig.12 As shown, the initial position of the multiple drop baffles 18 is to be located below the drop hole 15 and to seal it. When the dust and raw materials in the mixing barrel 2 are mixed, the multiple baffle cylinders 19 can be started to drive the drop baffles 18 to move into the drop baffle box 16, so that the drop hole 15 is opened, and the material inside the mixing barrel 2 can fall downward into the blowing barrel 1 through the multiple drop holes 15.

[0060] Embodiment 4, based on embodiment 1, as shown in the attached Figure 5-Figure 8 As shown, the vortex injection mechanism 6 includes an inclined orifice plate slot 20, an inclined orifice plate 21, an inclined hole 22, an vortex air supply box 23, an vortex air distribution pipe 24, and a vortex air supply ring pipe 25;

[0061] The side of the blowing tube 1 is penetrated with a plurality of circumferentially evenly distributed inclined hole plate grooves 20, each of which is fixedly installed with a blowing inclined hole plate 21 inside, and a plurality of blowing inclined holes 22 are penetrated from top to bottom between the inner and outer sides of the blowing inclined hole plate 21, as shown in the attached Figure 8As shown, the inclined blowing hole 22 in the figure has a certain angle with the center line of the inclined blowing hole plate 21, so that the airflow can be blown out at an angle, thereby driving the material inside the blowing tube 1 to swirl and rotate, and a swirl air supply box 23 is fixedly installed on the outside of each of the inclined blowing hole plates 21, and the top of each of the swirl air supply boxes 23 is connected to a swirl air distribution pipe 24, and the tops of multiple swirl air distribution pipes 24 are commonly connected to a swirl air supply ring pipe 25, and the swirl air supply ring pipe 25 is connected to the blowing air supply component 10, and the blowing air supply component 10 can supply air to the inside of the swirl air supply ring pipe 25, and the swirl air supply ring pipe 25 simultaneously supplies air to the inside of multiple swirl air supply boxes 23 through multiple swirl air distribution pipes 24, so that several inclined blowing holes 22 on multiple inclined blowing hole plates 21 simultaneously spray gas, thereby driving the material to rotate and generate swirl.

[0062] Embodiment 5, based on embodiment 4, as shown in the attached Figure 1-Figure 4 As shown, the spray air supply assembly 10 includes a vortex air supply pipe 26, a spray air supply pipe 27, a spray pressurized air supply pipe 28, and a pressurized air supply branch pipe 29;

[0063] The vortex air supply pipe 26 is connected to the vortex air supply ring pipe 25 and supplies air to the inside thereof. The injection air supply pipe 27 is connected to the inside of the injection barrel 7, so that the material inside the injection barrel 7 is blown into the injection pipe 8. The injection pressurized air supply pipe 28 is located above the injection pipe 8 and is connected to the inside of the injection pipe 8 through a plurality of pressurized air supply branches 29 equidistantly distributed on the left and right. The angle between the pressurized air supply branch 29 and the injection pipe 8 is as shown in the attached figure. Figure 1-Figure 4 As shown, the lower end of the pressurized air supply branch pipe 29 is inclined toward the blowing direction of the blowing pipe 8, thereby supplying air and pressurizing the flow of the material inside the blowing pipe 8, avoiding the situation where the material blowing efficiency is reduced or the pipeline is blocked due to the reduction of air pressure in the blowing pipe 8.

[0064] Embodiment 6, based on embodiment 5, as shown in the attached Figure 3 , Figure 4 , Fig. 9 , Fig.10 As shown, the spraying anti-blocking mechanism 13 includes an anti-blocking rotating ring 30, an anti-blocking fan blade 31, an anti-blocking lever 32, and a guide cone ring 33;

[0065] The blowing pipe 8 is composed of a plurality of blowing branches 801 which are fixedly connected by flanges, each of the pressurized air supply branch pipes 29 is connected to one of the blowing branches 801, and the blowing anti-blocking mechanism 13 is installed inside each blowing branch pipe 801, and two anti-blocking rotating rings 30 are rotatably installed inside each blowing branch pipe 801, and a plurality of anti-blocking blades 31 uniformly distributed in the circumferential direction are fixedly connected between the two anti-blocking rotating rings 30, and the plurality of anti-blocking blades 31 are located at the connection point between the pressurized air supply branch pipe 29 and the blowing branch pipe 801, and when the pressurized air supply branch pipe 29 supplies air to the inside of the blowing branch pipe 801, the plurality of anti-blocking blades 31 can be blown to prevent blocking. The swivel 30 rotates, and a plurality of circumferentially evenly distributed anti-blocking levers 32 are fixedly connected to the right side surface of each anti-blocking swivel 30 located on the right side of the anti-blocking blade 31. When the anti-blocking swivel 30 rotates, it can drive the plurality of anti-blocking levers 32 to rotate, thereby preventing the material from being blocked inside the blow pipe 8. The anti-blocking lever 32 abuts against the inner wall of the blow pipe 8, and can also scrape off the material adhering to the inner wall of the blow pipe 8. A guide cone ring 33 with an annular inclined surface on the inner side is coaxially fixedly installed on the left side surface of each anti-blocking swivel 30 located on the left side of the anti-blocking blade 31. The annular cone surface on the inner side of the guide cone ring 33 can reduce the resistance caused by the anti-blocking swivel 30 to the flow of materials.

[0066] Embodiment 7, based on embodiment 1, as shown in the attached Figure 11-13 As shown, the mixing mechanism 11 includes a circulating barrel 34, a circulating hole 35, a mixing motor, a driving spindle 36, a circulating auger 37, a mixing driving rod 38, a mixing ring 39, a mixing rod 40, and a mixing inclined plate 41;

[0067] A circulating barrel 34 is coaxially fixedly installed at the bottom of the mixing barrel 2, and a plurality of circulating material holes 35 are penetrated through the bottom of the side of the circulating barrel 34. A mixing motor is fixedly installed on the top of the mixing barrel 2, and the mixing motor is connected to a power supply and a remote controller. The rotating shaft of the mixing motor is coaxially fixedly connected to a driving spindle 36 extending into the circulating barrel 34, and a circulating auger 37 located inside the circulating barrel 34 is fixedly installed on the outer side of the driving spindle 36. A plurality of mixing drive rods 38 located above the circulating barrel 34 are fixedly installed on the outer side of the driving spindle 36. Two mixing rings 39 are fixedly installed between the bottoms of the mixing driving rods 38, and mixing rods 40 are fixedly installed at the bottoms of the two mixing rings 39. The mixing rod 40 at the bottom of one of the mixing rings 39 fits against the inside of the mixing barrel 2, and the mixing rod 40 at the bottom of the other mixing ring 39 fits against the outer side surface of the circulation barrel 34. The mixing rod 40 can scrape off the materials adhering to the inner wall of the mixing barrel 2 and the outer wall of the circulation barrel 34 when it moves circumferentially. A plurality of mixing inclined plates 41 equidistantly distributed up and down are fixedly connected between every two radially corresponding mixing rods 40.

[0068] After the dust and raw materials are added into the mixing barrel 2, the mixing motor can be started to drive the driving spindle 36 to rotate, and the driving spindle 36 drives the two mixing rings 39 to rotate through the mixing driving rod 38. The two mixing rings 39 stir and mix the materials through the mixing inclined plate 41 between the mixing rods 40. At the same time, the materials can enter the interior of the circulating barrel 34 through the circulating material hole 35, and the driving spindle 36 can also drive the circulating auger 37 to rotate, so as to move the materials entering the circulating barrel 34 upward, so that the materials can be mixed. The material can flow out from the top of the circulating barrel 34, so that the material at the bottom layer can be moved to the top layer, which improves the stirring and mixing effect of the material. After the mixing is completed, the multiple material drop baffles 18 can be opened to allow the material to fall into the blowing barrel 1 through the multiple material drop holes 15. During this process, the circulating auger 37 continues to rotate to lift the material. Only a part of the material can stay on the drop hole plate 14 and fall downward through the drop hole 15, avoiding the accumulation of all the material at the bottom of the circulating barrel 34, causing the multiple drop holes 15 to be blocked.

[0069] Embodiment 8, based on embodiment 7, as shown in the attached Figure 5-Figure 8 As shown, the vortex auxiliary mechanism 12 includes a material distribution cone 42, a scraper connecting rod 43, a spray tube scraper 44, and a spray guide plate 45;

[0070] The bottom end of the driving main shaft 36 extends to the inside of the blowing tube 1, and a material dividing cone disk 42 is coaxially fixedly installed on the bottom end thereof. The driving main shaft 36 drives the material dividing cone disk 42 to rotate, and the materials passing through the plurality of drop holes 15 can fall on the top conical surface of the material dividing cone disk 42, and are evenly scattered downward along the conical surface under the action of the rotating force of the material dividing cone disk 42, so as to avoid that when a large amount of materials fall at once, the materials will not be driven by the plurality of blowing inclined holes 22 to rotate in a vortex, and the materials will directly fall into the inside of the blowing tube 7 to form an accumulation, which is not conducive to The material distribution cone 42 has a blowing effect on the material, so this problem can be avoided. A plurality of scraper connecting rods 43 evenly distributed in the circumference are fixedly installed on the outer surface of the material distribution cone 42. The bottom of each scraper connecting rod 43 is fixedly connected to a blowing tube scraper 44 that fits the inner wall of the blowing tube 1. When the material distribution cone 42 rotates, it can drive the plurality of blowing tube scrapers 44 to rotate circumferentially, thereby preventing the vortex rotating material from adhering to the inner wall of the blowing tube 1. A blowing guide plate 45 is fixedly installed on one side of each blowing tube scraper 44, as shown in the attached figure. Figure 8 As shown, in order to avoid the blow tube scraper 44 causing resistance to the material vortex rotation, a blow guide plate 45 with an arc surface is installed on the blow tube scraper 44 on the opposite side of the vortex rotation direction. When the material vortex rotates, the resistance when it contacts the arc surface of the blow guide plate 45 is reduced, and it can also guide the material to promote the vortex rotation of the material. In addition, when the blow guide plate 45 moves to one side of the blow inclined hole 22 (as shown in the attached Figure 8The position shown in the figure) is when the airflow blown out of the inclined hole 22 contacts the arc surface of the blowing guide plate 45 and can guide the airflow, thereby causing the airflow to drive the material to rotate in a vortex.

[0071] The outer side of the driving main shaft 36 is coaxially fixedly mounted with a filter residue net 46 located above the material distribution cone 42 and with the middle part bulging upward. The outer circumferential surface of the filter residue net 46 is rotatably matched with the inner wall of the blowing tube 1. The driving main shaft 36 can drive the filter residue net 46 to rotate synchronously. The top of the blowing tube 1 is provided with a slag discharge manhole 47, as shown in the attached figure. Figure 5 , Figure 6 As shown, the mixed material falls downward from the drop barrel 3 to the top of the filter residue net 46. The filter residue net 46 can filter larger particles in the material, and when the filter residue net 46 rotates, the material can roll on its top to speed up the filtering of the material. The filtered large particles will roll to the edge of the filter residue net 46, and the slag discharge manhole 47 can be opened to clean it.

[0072] Embodiment 9, based on embodiment 5, as shown in the attached Figure 5 As shown, a discharge guide plate 48 inclined toward the lower right is fixedly installed inside the blowing barrel 7, and the right end of the discharge guide plate 48 is located above the left end of the blowing pipe 8. A blowing guide arc plate 49 is fixedly installed inside the blowing barrel 7, and the left end of the blowing guide arc plate 49 is located above the blowing air supply pipe 27, and the right end thereof is fixedly connected to the right end of the discharge guide plate 48. The material can move along the discharge guide plate 48 to the port at the left end of the blowing pipe 8, and the airflow blown out by the blowing air supply pipe 27 can blow the material into the interior of the blowing pipe 8 along the arc surface of the blowing guide arc plate 49 to avoid blowing the material back upward.

[0073] A method for using a laterite nickel ore dust blowing device, characterized in that it comprises the following steps:

[0074] a mixing feed pipe 401 and the raw material pipe 5 to the inside of the mixing barrel 2 to add dust and raw materials, the mixing mechanism 11 to mix the two, the circulating auger 37 to the bottom of the mixing barrel 2 materials, the circulating barrel 34 is lifted to the top of the mixing barrel 2, so that the dust and raw materials can be fully mixed;

[0075] b. The baffle cylinder 19 drives the blanking baffle 18 to move, so that the blanking hole 15 is opened, and the mixed material inside the mixing cylinder 2 falls into the inside of the blowing cylinder 1 through the blanking cylinder 3. When the dust removal ash does not need to be mixed with the raw materials, the electromagnetic reversing valve 403 can be switched so that the dust removal ash is directly added to the inside of the blowing cylinder 1 from the blowing feed pipe 402;

[0076] c. The filter net 46 can filter the large particles in the material entering the spray barrel 1 and can clean it from the slag discharge manhole 47. After the filtered material falls onto the rotating material distribution cone 42, it can be evenly scattered downward. The airflow sprayed from the plurality of circumferentially distributed spraying inclined holes 22 can gasify the dust removal ash, so that a rotating dust removal ash vortex is formed in the spray barrel 1;

[0077] d. When the blowing air supply pipe 27 supplies air to the inside of the blowing barrel 7, the dust removal ash that forms a vortex can be blown into the blowing pipe 8 and sprayed out from the blowing nozzle 9, thereby realizing the blowing process of the dust removal ash. The blowing pressurized air supply pipe 28 and multiple pressurized air supply branches 29 can pressurize the dust removal ash flowing inside the blowing pipe 8 and can also drive the blowing anti-blocking mechanism 13 to rotate to avoid blockage of the blowing pipe 8.

[0078] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0079] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A laterite nickel ore dust blowing device, characterized in that: The invention comprises a blowing cylinder (1) and a mixing cylinder (2), wherein a blanking cylinder (3) is fixedly installed between the top of the blowing cylinder (1) and the bottom of the mixing cylinder (2), the tops of the blowing cylinder (1) and the mixing cylinder (2) are both connected to a feed pipe (4), the top of the mixing cylinder (2) is connected to a raw material pipe (5), a plurality of circumferentially evenly distributed blowing vortex mechanisms (6) are installed on the inner wall of the blowing cylinder (1), a blowing material cylinder (7) is installed at the bottom of the blowing cylinder (1), and a material cylinder (7) is fixedly connected to the outer surface of the blowing material cylinder (7). A blow pipe (8) is connected to the inside thereof, the blow pipe (8) is connected to a blow nozzle (9), the blow vortex mechanism (6) is connected to a blow air supply assembly (10), the blow air supply assembly (10) is respectively connected to a blow barrel (7) and a blow pipe (8), a blow anti-blocking mechanism (13) is rotatably installed inside the blow pipe (8), a mixing mechanism (11) is rotatably installed inside the mixing barrel (2), and a vortex auxiliary mechanism (12) connected to the mixing mechanism (11) is installed inside the blow barrel (1); The feed pipe (4) comprises a mixing feed pipe (401) and a spray feed pipe (402), wherein the mixing feed pipe (401) is connected to the top of the mixing cylinder (2), and the spray feed pipe (402) is connected to the top of the spray cylinder (1), and an electromagnetic reversing valve (403) is connected between the mixing feed pipe (401) and the spray feed pipe (402); A blanking hole plate (14) is coaxially fixedly installed inside the blanking barrel (3), and a plurality of blanking holes (15) are penetrated from top to bottom of the blanking hole plate (14). A plurality of blanking baffle boxes (16) are fixedly installed on the outside of the blanking barrel (3). A blanking baffle groove (17) located below the blanking hole plate (14) is penetrated between the blanking baffle box (16) and the inner wall of the blanking barrel (3). A blanking baffle (18) sealingly fitted with the bottom surface of the blanking hole plate (14) is slidably installed in the blanking baffle groove (17). A baffle cylinder (19) is installed on the outside of the blanking baffle box (16), and the telescopic end of the baffle cylinder (19) penetrates into the blanking baffle box (16) and is connected to the blanking baffle (18); The vortex injection mechanism (6) comprises an inclined orifice plate groove (20), an inclined orifice injection plate (21), an inclined hole injection (22), an vortex air supply box (23), an vortex air distribution pipe (24), and a vortex air supply ring pipe (25); The side surface of the blowing tube (1) is penetrated by a plurality of circumferentially evenly distributed inclined hole plate grooves (20), a blowing inclined hole plate (21) is fixedly installed inside each of the inclined hole plate grooves (20), a plurality of blowing inclined holes (22) are penetrated from top to bottom between the inner and outer side surfaces of the blowing inclined hole plate (21), a vortex air supply box (23) is fixedly installed outside each of the blowing inclined hole plates (21), the top of each of the vortex air supply boxes (23) is connected to a vortex air distribution pipe (24), the top ends of the plurality of vortex air distribution pipes (24) are commonly connected to a vortex air supply ring pipe (25), and the vortex air supply ring pipe (25) is connected to the blowing air supply assembly (10); The spray air supply assembly (10) comprises a vortex air supply pipe (26), a spray air supply pipe (27), a spray pressurized air supply pipe (28), and a pressurized air supply branch pipe (29); The vortex air supply pipe (26) is in communication with the vortex air supply ring pipe (25), the injection air supply pipe (27) is in communication with the interior of the injection barrel (7), and the injection pressurized air supply pipe (28) is located above the injection pipe (8) and is in communication with the interior of the injection pipe (8) via a plurality of pressurized air supply branches (29) equidistantly distributed on the left and right; The jet anti-blocking mechanism (13) comprises an anti-blocking rotating ring (30), an anti-blocking fan blade (31), an anti-blocking lever (32), and a guide cone ring (33); The blowing pipe (8) is composed of a plurality of blowing branch pipes (801) fixedly connected via flanges, each of the pressurized air supply branch pipes (29) is connected to one of the blowing branch pipes (801), two anti-blocking rotating rings (30) are rotatably installed inside each of the blowing branch pipes (801), a plurality of circumferentially evenly distributed anti-blocking blades (31) are fixedly connected between the two anti-blocking rotating rings (30), the plurality of anti-blocking blades (31) are located at the connection point between the pressurized air supply branch pipe (29) and the blowing branch pipe (801), a plurality of circumferentially evenly distributed anti-blocking levers (32) are fixedly connected to the right side surface of each anti-blocking rotating ring (30) located on the right side of the anti-blocking blade (31), and a guide cone ring (33) having an annular inclined surface on the inner side is coaxially fixedly installed on the left side surface of each anti-blocking rotating ring (30) located on the left side of the anti-blocking blade (31).

2. A laterite nickel ore dust blowing device according to claim 1, characterized in that: The mixing mechanism (11) comprises a circulating material barrel (34), a circulating material hole (35), a mixing motor, a driving spindle (36), a circulating auger (37), a mixing driving rod (38), a mixing ring (39), a mixing rod (40), and a mixing inclined plate (41); A circulating material barrel (34) is coaxially fixedly mounted on the bottom of the mixing barrel (2), a plurality of circulating material holes (35) are penetrated through the bottom of the side of the circulating material barrel (34), a mixing motor is fixedly mounted on the top of the mixing barrel (2), a driving spindle (36) extending into the circulating material barrel (34) is coaxially fixedly connected to the rotating shaft of the mixing motor, a circulating auger (37) located inside the circulating material barrel (34) is fixedly mounted on the outer side of the driving spindle (36), and a plurality of circulating material holes (35) located above the circulating material barrel (34) are fixedly mounted on the outer side of the driving spindle (36). A mixing drive rod (38), two mixing rings (39) are fixedly mounted between the bottoms of the plurality of mixing drive rods (38), and a mixing rod (40) is fixedly mounted at the bottoms of the two mixing rings (39), wherein the mixing rod (40) at the bottom of one of the mixing rings (39) fits in contact with the interior of the mixing barrel (2), and the mixing rod (40) at the bottom of the other mixing ring (39) fits in contact with the outer side surface of the circulation barrel (34), and a plurality of mixing inclined plates (41) equidistantly distributed vertically are fixedly connected between every two radially corresponding mixing rods (40).

3. A laterite nickel ore dust blowing device according to claim 2, characterized in that: The vortex auxiliary mechanism (12) comprises a material distribution cone (42), a scraper connecting rod (43), a spray tube scraper (44), and a spray guide plate (45); The bottom end of the driving main shaft (36) extends to the interior of the blowing tube (1), and a material distribution cone disk (42) is coaxially fixedly mounted on the bottom end thereof; a plurality of scraper connecting rods (43) evenly distributed in the circumferential direction are fixedly mounted on the outer surface of the material distribution cone disk (42); a blowing tube scraper (44) that is in contact with the inner wall of the blowing tube (1) is fixedly connected to the bottom of each scraper connecting rod (43); a blowing guide plate (45) is fixedly mounted on one side of each blowing tube scraper (44); a filter residue net (46) located above the material distribution cone disk (42) and with its middle portion raised upward is coaxially fixedly mounted on the outer side of the driving main shaft (36); the outer circumferential surface of the filter residue net (46) is rotatably matched with the inner wall of the blowing tube (1); and a slag discharge manhole (47) is provided at the top of the blowing tube (1).

4. The laterite nickel ore dust blowing device according to claim 1 is characterized in that: A discharge guide plate (48) tilted toward the lower right is fixedly installed inside the blowing barrel (7), and the right end of the discharge guide plate (48) is located above the left end of the blowing pipe (8). A blowing guide arc plate (49) is fixedly installed inside the blowing barrel (7), and the left end of the blowing guide arc plate (49) is located above the blowing air supply pipe (27), and the right end is fixedly connected to the right end of the discharge guide plate (48).

5. A method for using the laterite nickel ore dust blowing device as claimed in claim 3, characterized in that: The following steps are involved: a. The mixing feed pipe (401) and the raw material pipe (5) add dust and raw materials to the inside of the mixing barrel (2), the mixing mechanism (11) mixes the two, and the circulating auger (37) lifts the material at the bottom of the mixing barrel (2) through the circulating barrel (34) to the top of the mixing barrel (2), so that the dust and raw materials are fully mixed; b. The baffle cylinder (19) drives the drop baffle (18) to move, thereby opening the drop hole (15), and the mixed material in the mixing cylinder (2) drops into the inside of the blowing cylinder (1) through the drop cylinder (3). When the dust removal ash does not need to be mixed with the raw materials, the electromagnetic reversing valve (403) can be switched so that the dust removal ash is directly added into the inside of the blowing cylinder (1) from the blowing feed pipe (402); c. The filter screen (46) can filter large particles in the material entering the spray barrel (1) and can be cleaned from the slag discharge manhole (47). After the filtered material falls onto the rotating material distribution cone (42), it can be evenly scattered downward. The airflow ejected from a plurality of circumferentially distributed spraying inclined holes (22) can gasify the dust removal ash, so that a rotating dust removal ash vortex is formed in the spray barrel (1); d. When the spray air supply pipe (27) supplies air to the inside of the spray barrel (7), the dust dust forming a vortex can be blown into the spray pipe (8) and sprayed out from the spray nozzle (9), thereby realizing the spray process of the dust dust. The spray pressurized air supply pipe (28) and the plurality of pressurized air supply branches (29) can supply pressurized air to the dust dust flowing inside the spray pipe (8), and can also drive the spray anti-blocking mechanism (13) to rotate to prevent the spray pipe (8) from being blocked.

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