Controllable production type fragile ore roasting shaft kiln

Abstract

The present application relates to shaft kiln technical field, especially for a kind of controllable production fragile ore roasting shaft kiln, including the shaft kiln main body with feed hopper welded at top and heating frame installed on the surface of shaft kiln main body, the surface of heating frame is equipped with burner, it further includes: roasting group, installation is above the inner wall of shaft kiln main body, the roasting group includes hollow box and the blocking portion being arranged in hollow box interior, the blocking portion is under the descending of ore gravity and is lifted by air flow;The present application can store material between outer frame and hollow box and roasting, can avoid broken ore with air exhaust, after the movement of lower sieve plate and trapezoidal piece, the size adjustment of ore can be passed, prolong the roasting time of ore, so as to cooperate with the roasting of different ore, solve the problem that part of shaft kiln is used, air from bottom to top is easy to drive broken ore to be discharged reversely and cause waste, inconvenient to roasting coarse-grained limestone.

Description

Technical Field

[0001] This invention relates to the field of vertical kiln technology, specifically to a controllable-production vertical kiln for roasting fragile ores. Background Technology

[0002] A vertical kiln is a vertical thermal equipment used in the roasting process. It is widely used in the refractory materials and lime industries. The vertical kiln is built vertically, with materials moving from top to bottom, while flue gas flows counter-currently from bottom to top to contact the materials.

[0003] The raw material currently used for metallurgical lime is fine-grained limestone. As the resources of fine-grained limestone become increasingly depleted, coarse-grained limestone, as the preferred substitute for fine-grained limestone, is prone to breakage or even pulverization during the roasting process due to the tight bonding between the grains and the low thermal expansion capacity. Currently, the flue gas used in some vertical kilns from bottom to top can affect the falling of broken and pulverized ore fragments, and some broken and pulverized ore is discharged with the air, affecting normal material discharge operations. Summary of the Invention

[0004] The purpose of this invention is to provide a controllable production vertical kiln for roasting fragile ores. By setting up the roasting group, the material can be stored between the outer frame and the hollow box for roasting, which can prevent the crushed ore from being discharged with the air. After the lower screen plate and trapezoidal parts are moved, the size of the ore that can pass through can also be adjusted, extending the roasting time of the ore so as to be used for roasting different ores. This solves the problem that in the current use of some vertical kilns, the air from the bottom up can easily drive the crushed ore back and discharge, causing waste and making it inconvenient to roast coarse-grained limestone.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a controllable-production vertical kiln for roasting fragile ores, comprising a vertical kiln body with a feed hopper welded to the top and a heating frame installed on the surface of the vertical kiln body, wherein a burner is installed on the surface of the heating frame, and further comprising: The roasting assembly is installed above the inner wall of the vertical kiln. The roasting assembly includes a hollow box and a sealing part disposed inside the hollow box. The roasting assembly also includes an outer frame welded to the inner wall of the vertical kiln and a guide component 1 welded to the top of the outer frame. A ventilating component 1 and a ventilating component 2 are respectively embedded on the surface of the hollow box and the top of the outer frame. The sealing part includes a column that slides through the hollow box. A reinforcing frame is fixedly fitted on the surface of the column. The surface of the reinforcing frame is slidably connected to the inner wall of the hollow box. A force-bearing component is welded to the top of the column. The surface of the force-bearing component contacts the inner wall of the guide component 1 and is slidably connected to the inner wall of the outer frame. The sealing part is lowered by the gravity of the ore and raised by the airflow. A shielding group is set below the roasting group. The bottom of the hollow box is fixedly connected to a connector, and a hot air pipe that is fixedly connected through the vertical kiln body and the heating frame is provided on the surface of the connector. A cooling unit is installed on the surface of the vertical kiln body, and the cooling unit includes a rotatable cleaning section.

[0006] Preferably, an air collecting hood is fixedly connected to the top of the outer frame, and an air outlet pipe is fixedly passed through the surface of the vertical kiln body, with both ends of the air outlet pipe connected to the top of the air collecting hoods on both sides respectively.

[0007] Preferably, an upper sieve plate is embedded at the bottom of the inner wall of the outer frame, and a lower sieve plate is slidably connected to the bottom of the upper sieve plate.

[0008] Preferably, the occlusion group includes: The separator and the bottom plate are both fixedly connected to the inner wall of the vertical kiln body; The moving part is installed between the separator and the base plate; The drive unit is installed on the surface of the vertical kiln body, and the lower screen plate is connected to the drive unit.

[0009] Preferably, the moving part includes: The barrier is slidably connected at the top and bottom to the bottom of the separator and the top of the base plate, respectively. A wedge-shaped component is welded to the surface of the barrier component, and a groove is formed on the surface of the wedge-shaped component; A trapezoidal component is slidably connected between the separator and the base plate, and a slider that is slidably connected to the inner wall of the groove is welded to the surface of the trapezoidal component.

[0010] Preferably, the driving unit includes: A U-shaped frame is welded to the surface of the main body of the vertical kiln, and an electric push rod is bolted to the inner wall of the U-shaped frame; The push plate is welded to the piston rod of the electric push rod; The smooth rod is welded to the upper and lower surfaces of the pusher plate and slides through the main body of the vertical kiln. One end of the upper smooth rod is fixedly connected to the lower screen plate, and one end of the lower smooth rod is fixedly connected to the trapezoidal component.

[0011] Preferably, the cooling assembly further includes: An inverted bucket is welded to the bottom of the heating frame, and a processing box is welded to the bottom of the inverted bucket; A storage frame is welded inside the main body of the vertical kiln. The surface of the storage frame has through holes, and the interior of the storage frame has a cavity. The cleaning part is installed inside the storage frame. The air inlet pipe and the air outlet pipe are respectively connected to the surfaces on both sides of the storage frame. The air outlet pipe is connected to the processing box, and the air inlet pipe is fixedly inserted through the main body of the vertical kiln.

[0012] Preferably, the cleaning unit includes: A rotating shaft rotatably passes through the main body of the vertical kiln, the storage frame, and the processing box. The two ends of the rotating shaft are rotatably connected to the inner walls of the processing box and the storage frame, respectively. The blades and cleaning components are welded to both sides of the rotating shaft surface, and the surface of the cleaning component is in contact with the inner wall of the storage frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the setting of the roasting group, allows materials to be stored between the outer frame and the hollow box for roasting. During this process, the ventilated component 2 prevents crushed ore from being discharged with the air. The crushed ore falls onto the top of the separating component and the barrier component, where it can be further heated. In addition, after the lower screen plate and the trapezoidal component move, the size of the ore that can pass through can be adjusted, extending the ore roasting time to accommodate different ores. This solves the problem that in some vertical kilns, the air flowing from bottom to top easily carries the crushed ore back out, causing waste and making it inconvenient to roast coarse-grained limestone. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the vertical kiln body and heating frame cut apart according to the present invention; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the present invention with the outer frame, guide member 1, and connector cut open, and the lower sieve plate and bottom plate removed. Figure 5 This is a three-dimensional structural diagram of the present invention, showing the disassembly of the shielding assembly and the cutting open of the hollow box, the C-shaped frame, and the wedge-shaped piece on one side; Figure 6 This is a three-dimensional structural diagram of the present invention with the outer frame, guide component one, and hollow box cut open and the ventilator component two removed; Figure 7 This is a three-dimensional structural diagram of the heating frame, burner, and cooling assembly in this invention; Figure 8 This is a three-dimensional structural diagram of the present invention, showing the inverted bucket, processing box, and storage frame cut apart.

[0015] In the diagram: 100, main body of the vertical kiln; 200, heating frame; 300, burner; 400, cooling assembly; 410, inverted hopper; 420, processing box; 430, storage frame; 440, exhaust duct; 450, air inlet duct; 460, cleaning section; 461, rotating shaft; 462, blades; 463, cleaning component; 500, roasting assembly; 510, outer frame; 520, guide component one; 530, hollow box; 540, sealing section; 541, column; 542, reinforcing frame; 543, load-bearing component. 550. Ventilation component one; 560. Ventilation component two; 570. Air collector hood; 580. Air outlet duct; 600. Connector; 700. Shielding assembly; 710. Separator; 720. Base plate; 730. Moving part; 731. Barrier; 732. Wedge-shaped part; 733. Trapezoidal part; 734. Slider; 740. Drive unit; 741. C-shaped frame; 742. Electric push rod; 743. Push plate; 744. Smooth rod; 750. Upper sieve plate; 760. Lower sieve plate; 800. Guide component two. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-8A controllable-production vertical kiln for roasting fragile ores includes a kiln body 100 and a heating frame 200 mounted on the surface of the kiln body 100. A burner 300 is mounted on the surface of the heating frame 200. When the burner 300 is started, it heats the air inside the heating frame 200. A cooling assembly 400 is mounted on the surface of the kiln body 100. The system includes an inverted bucket 410 welded to the bottom of the heating frame 200, a processing box 420 welded to the bottom of the inverted bucket 410, and a storage frame 430 welded inside the vertical kiln body 100. The surface of the storage frame 430 has through holes through which roasted ore fragments inside the vertical kiln body 100 are discharged. A cleaning unit 460 is installed inside the storage frame 430, and a cavity is formed inside. An air inlet pipe 450 and an air outlet pipe 440 are respectively connected to the surfaces on both sides of the storage frame 430. One end of the air outlet pipe 440 is connected to the processing box 420. The air inlet pipe 450 is fixedly inserted through the vertical kiln body 100 and connected to an external blower. When the blower is started, air is injected into the processing box 420 through the air inlet pipe 450, the cavity, and the cleaning unit 460. When ore fragments pass through the through holes, the air flows within the cavity and absorbs heat from the ore fragments through heat exchange, thus achieving a cooling effect. When it enters the interior of the processing box 420, it can drive the cleaning section 460 to rotate, so that the rotation of the cleaning section 460 can assist in the discharge of ore fragments inside the storage frame 430. The cleaning section 460 includes a rotating shaft 461 that rotates through the vertical kiln body 100, the storage frame 430 and the processing box 420. The two ends of the rotating shaft 461 are rotatably connected to the inner walls of the processing box 420 and the storage frame 430, respectively. Blades 462 and cleaning components are welded to both sides of the surface of the rotating shaft 461, respectively. 463, blades 462 are disposed inside the processing box 420, and cleaning component 463 is disposed inside the storage frame 430. Air is injected into the inner wall of the processing box 420 through the exhaust pipe 440, which drives the blades 462 to rotate. The rotating shaft 461 then drives the cleaning component 463 to rotate inside the storage frame 430. The cleaning component 463 contacts the inner wall of the storage frame 430, which can modify the ore fragments deposited on the inner wall of the storage frame 430 so that the ore fragments can be discharged through the through hole.

[0018] A feed hopper is welded to the top of the vertical kiln body 100. The ore raw material enters the interior of the vertical kiln body 100 through the feed hopper and falls under the action of gravity. A roasting group 500 is installed above the inner wall of the vertical kiln body 100. A shielding group 700 is set below the roasting group 500. A guide member 800 is installed between the shielding group 700 and the storage frame 430. The guide member 800 is welded to the inner wall of the vertical kiln body 100. The ore fragments that have been heated and roasted inside the roasting group 500 and between the roasting group 500 and the shielding group 700 fall downward through the guide member 800. The guide member 800 guides the ore fragments, and the ore fragments enter the interior of the storage frame 430 for cooling treatment.

[0019] The roasting unit 500 includes an outer frame 510 welded to the inner wall of the vertical kiln body 100. A guide component 520 is welded to the top of the outer frame 510. A hollow box 530 is welded to the inner wall of the outer frame 510. A sealing part 540 is provided inside the hollow box 530. The guide component 520 receives and guides the ore material falling from above. When the ore material falls, it is pressed down by gravity and the sealing part 540 falls down. The ore material falls on both sides of the hollow box 530. A connector 600 is fixedly connected to the bottom of the hollow box 530. The surface of the connector 600... A hot air duct is connected and fixedly passes through the vertical kiln body 100 and the heating frame 200. Air below the heating frame 200 is discharged upwards and heated by the burner 300. The heated air enters the interior of the connector 600 through the hot air duct. Most of the hot air enters the interior of the hollow box 530 and is lifted by air pressure to create a sealing part 540. The sealing part 540 includes a column 541 that slides through the hollow box 530. A reinforcing frame 542 is fixedly fitted on the surface of the column 541. A load-bearing component 543 is welded to the top of the column 541. The surface of the load-bearing component 543... The inner wall of the guide member 520 is in contact with the inner wall of the outer frame 510, and the surface of the reinforcing frame 542 is slidably connected to the inner wall of the hollow box 530. Air pressure lifts the column 541 and the reinforcing frame 542, causing the force-bearing member 543 to rise and seal the bottom of the inner wall of the guide member 520, restricting hot air from escaping through the guide member 520. Ventilation members 550 are embedded on both sides of the hollow box 530, and ventilation members 560 are embedded on both sides of the top of the outer frame 510. Air inside the hollow box 530 passes through the ventilation members 550. The ore raw materials on both sides of the hollow box 530 are heated and roasted, and the ore raw materials are roasted and crushed under high temperature. The crushed ore raw materials fall off under gravity. The top of the outer frame 510 is fixedly connected to the air collecting hood 570. The surface of the vertical kiln body 100 is fixedly penetrated by the air outlet pipe 580. The two ends of the air outlet pipe 580 are respectively connected to the top of the air collecting hoods 570 on both sides. Hot air is discharged through the air collecting hoods 570 and the air outlet pipe 580. More importantly, the other end of the air outlet pipe 580 can be connected to an additional blower to drive the air flow.

[0020] During the high-temperature roasting process, the second ventilator 560 and the first ventilator 550 can limit the movement range of ore fragments.

[0021] The shielding assembly 700 includes a separator 710 and a bottom plate 720 fixedly connected to the inner wall of the vertical kiln body 100. The bottom plate 720 is located at the bottom of the separator 710. A moving part 730 is installed between the separator 710 and the bottom plate 720. A driving part 740 is installed on the surface of the vertical kiln body 100. An upper screen plate 750 is embedded at the bottom of the inner wall of the outer frame 510. A lower screen plate 760 is slidably connected to the bottom of the upper screen plate 750. When the lower screen plate 760 moves, the size of the ore fragments that can pass through can be adjusted to extend the high-temperature roasting time of the ore raw material and improve the roasting effect. The moving part 730 includes a blocking part 731 slidably connected to the bottom of the separator 710 and the top of the bottom plate 720. A wedge-shaped part 732 is welded to the surface of the blocking part 731. The top of the wedge-shaped member 732 is slidably connected to the bottom of the separating member 710, and the bottom of the wedge-shaped member 732 is slidably connected to the top of the bottom plate 720. A trapezoidal member 733 is slidably connected between the separating member 710 and the bottom plate 720. The surfaces on both sides of the trapezoidal member 733 are slidably connected to the surfaces of the two wedge-shaped members 732 respectively. When the trapezoidal member 733 moves, the ends of the blocking member 731 and the wedge-shaped member 732 are restricted by the inner walls of the vertical kiln body 100, achieving a guiding and limiting effect. Therefore, the wedge-shaped member 732 can drive the blocking member 731 to move laterally in a stable manner when subjected to force, thereby adjusting the distance between the blocking member 731 and the inner wall of the vertical kiln body 100. Some of the hot air discharged from below the surfaces on both sides of the connecting member 600 blows the ore on top of the blocking member 731. The ore fragments are further heated and roasted. The drive unit 740 includes a U-shaped frame 741 welded to the surface of the vertical kiln body 100. An electric push rod 742 is bolted to the inner wall of the U-shaped frame 741. A push plate 743 is welded to the piston rod of the electric push rod 742. Smooth rods 744 are welded to the upper and lower surfaces of the push plate 743. The smooth rods 744 slide through the vertical kiln body 100. One end of the upper smooth rod is fixedly connected to the lower screen plate 760, and one end of the lower smooth rod is fixedly connected to the trapezoidal member 733. By setting up the U-shaped frame 741, not only can the position of the electric push rod 742 be fixed, but the distance between the electric push rod 742 and the vertical kiln body 100 can also be increased, reducing the possibility of the electric push rod 742 being affected by high temperature. The electric push rod 742 is activated. At the same time, the lower screen plate 760 and trapezoidal part 733 can be moved synchronously by the movement of push plate 743 and smooth rod 744, thereby adjusting the staggered position of lower screen plate 760 and upper screen plate 750 and adjusting the distance between barrier 731 and vertical kiln body 100, limiting the size of falling ore fragments. The surfaces of both sides of trapezoidal part 733 are welded with sliders 734, and the surface of wedge 732 is provided with a sliding groove. The surface of slider 734 is slidably connected to the inner wall of the sliding groove. When trapezoidal part 733 moves in the opposite direction, the movement of slider 734 and the cooperation between slider 734 and sliding groove can drive wedge 732 to move away from the inner wall of vertical kiln body 100, thereby increasing the distance between barrier 731 and the inner wall of vertical kiln body 100.

[0022] Since the gap between the separator 710 and the bottom plate 720 is blocked by the inner wall of the vertical kiln body 100 and the barrier 731, the ore fragments can be restricted from entering between the separator 710 and the bottom plate 720 and immersing in the interior of the chute, thereby ensuring the normal sliding use of the barrier 731.

[0023] More importantly, the various structures used in this solution can be made of high-temperature resistant materials to ensure the stability of the structural shape and position.

[0024] It is worth noting that the technical features such as burner 300 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0025] Working principle: The ore raw material enters the interior of the vertical kiln body 100 through the feed hopper at the top of the vertical kiln body 100. Guided by the guide component 520, it falls and is pressed by the force-bearing component 543. The ore raw material falls into the interior of the outer frame 510 and is located on both sides of the hollow box 530. Cooling air enters the cavity inside the storage frame 430 through the air inlet pipe 450 and enters the heating frame 200 through the processing box 420 and the inverted hopper 410. The burner 300 heats the air inside the heating frame 200. The hot air rises and enters the interior of the hollow box 530 through the hot air pipe. Most of the hot air is discharged into the interior of the outer frame 510 through the vent component 550 and heats the ore raw material. After high-temperature roasting, the ore raw material is crushed and pulverized. The ore fragments fall through the upper screen plate 750 and the lower screen plate 760 to the top of the separator 710 and the barrier component 731. Some of the ore fragments that meet the crushing standard pass through the barrier component. The ore fragments fall through the gap between 731 and the inner wall of the vertical kiln body 100 and are guided by the guide component 800 into the storage frame 430. Some of the hot air inside the connector 600 blows onto the surface of the separator 710 and further heats and blows the remaining ore fragments, causing them to break and fall. The hot air rises and passes through the upper screen plate 750 and the lower screen plate 760 into the outer frame 510. The ore fragments that fall onto the inner wall of the storage frame 430 are cooled by heat exchange and discharged through the through holes. During this process, the cooling air drives the cleaning part 460 to rotate, which can reduce the accumulation of ore fragments inside the storage frame 430. After the ore fragments are discharged, they can be used for the next step of processing. The cooled air, after heat exchange, absorbs heat inside the cavity and is preheated. The heated air enters the interior of the heating frame 200, where the burner 300 can quickly heat it for subsequent roasting.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

Claims

1. A controllable-production vertical kiln for roasting fragile ores, comprising a kiln body (100) with a feed hopper welded to the top and a heating frame (200) mounted on the surface of the kiln body (100), wherein a burner (300) is mounted on the surface of the heating frame (200), characterized in that, Also includes: A roasting assembly (500) is installed above the inner wall of the main body (100) of a vertical kiln. The roasting assembly (500) includes a hollow box (530) and a sealing part (540) disposed inside the hollow box (530). The roasting assembly (500) also includes an outer frame (510) welded to the inner wall of the main body (100) of the vertical kiln and a guide component (520) welded to the top of the outer frame (510). A venting component (550) and a venting component (560) are respectively embedded on the surface of the hollow box (530) and the top of the outer frame (510). The sealing part (540) includes a column (541) that slides through the hollow box (530). A reinforcing frame (542) is fixedly sleeved on the surface of the column (541). The surface of the reinforcing frame (542) is slidably connected to the inner wall of the hollow box (530). A force-bearing member (543) is welded to the top of the column (541). The surface of the force-bearing member (543) is in contact with the inner wall of the guide member (520) and is slidably connected to the inner wall of the outer frame (510). The sealing part (540) is lowered by the gravity of the ore and raised by the airflow. A shielding group (700) is set below the roasting group (500). A connector (600) is fixedly connected to the bottom of the hollow box (530). A hot air pipe is fixedly provided on the surface of the connector (600) and passes through the vertical kiln body (100) and the heating frame (200). A cooling unit (400) is installed on the surface of the vertical kiln body (100), the cooling unit (400) including a rotatable cleaning section (460).

2. The controllable-production vertical kiln for roasting fragile ore according to claim 1, characterized in that: The top of the outer frame (510) is fixedly connected to an air collecting hood (570), and the surface of the vertical kiln body (100) is fixedly penetrated by an air outlet pipe (580). The two ends of the air outlet pipe (580) are respectively connected to the top of the air collecting hoods (570) on both sides.

3. The controllable-production vertical kiln for roasting fragile ore according to claim 1, characterized in that: The bottom of the inner wall of the outer frame (510) is provided with an upper sieve plate (750), and the bottom of the upper sieve plate (750) is slidably connected to a lower sieve plate (760).

4. A controllable-production vertical kiln for roasting fragile ore according to claim 3, characterized in that, The occlusion group (700) includes: The separator (710) and the bottom plate (720) are both fixedly connected to the inner wall of the vertical kiln body (100); The movable part (730) is installed between the separator (710) and the base plate (720); The drive unit (740) is installed on the surface of the vertical kiln body (100), and the lower screen plate (760) is connected to the drive unit (740).

5. A controllable-production vertical kiln for roasting fragile ore according to claim 4, characterized in that, The moving part (730) includes: The top and bottom of the barrier (731) are slidably connected to the bottom of the separator (710) and the top of the base plate (720), respectively; A wedge-shaped member (732) is welded to the surface of the barrier member (731), and a groove is provided on the surface of the wedge-shaped member (732); A trapezoidal component (733) is slidably connected between the separator (710) and the base plate (720), and a slider (734) is welded to the surface of the trapezoidal component (733) and slidably connected to the inner wall of the groove.

6. A controllable-production vertical kiln for roasting fragile ore according to claim 5, characterized in that, The drive unit (740) includes: A U-shaped frame (741) is welded to the surface of the vertical kiln body (100), and an electric push rod (742) is bolted to the inner wall of the U-shaped frame (741). The push plate (743) is welded to the piston rod of the electric push rod (742); The upper and lower ends of the upper light rod (744) are welded to the upper and lower ends of the push plate (743) and slide through the vertical kiln body (100). One end of the upper light rod is fixedly connected to the lower screen plate (760), and one end of the lower light rod is fixedly connected to the trapezoidal part (733).

7. A controllable-production vertical kiln for roasting fragile ore according to claim 1, characterized in that, The cooling assembly (400) also includes: An inverted bucket (410) is welded to the bottom of a heating frame (200), and a processing box (420) is welded to the bottom of the inverted bucket (410). A storage frame (430) is welded inside the main body (100) of the vertical kiln. The surface of the storage frame (430) is provided with through holes, and the interior of the storage frame (430) is provided with a cavity. The cleaning part (460) is installed inside the storage frame (430). The air inlet pipe (450) and the air outlet pipe (440) are respectively connected to the surfaces on both sides of the storage frame (430). The air outlet pipe (440) is connected to the processing box (420). The air inlet pipe (450) is fixedly inserted through the vertical kiln body (100).

8. A controllable-production vertical kiln for roasting fragile ore according to claim 7, characterized in that, The cleaning unit (460) includes: A rotating shaft (461) rotatably passes through the main body of the vertical kiln (100), the storage frame (430), and the processing box (420). The two ends of the rotating shaft (461) are rotatably connected to the inner walls of the processing box (420) and the storage frame (430), respectively. The blade (462) and the cleaning component (463) are welded to both sides of the surface of the rotating shaft (461), and the surface of the cleaning component (463) is in contact with the inner wall of the storage frame (430).

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