A reducing furnace bottom dust removal device

Abstract

The application discloses a reducing furnace bottom dust removal device, which comprises a dust accumulation cover, the dust accumulation cover is suitable for accommodating an object to be dusted on a reducing furnace bottom, a first channel and a second channel are arranged on the dust accumulation cover, an opening device is arranged at the first channel, the opening device is suitable for controlling the opening and closing of the first channel, the opening device comprises a control mechanism and a triggering mechanism, the control mechanism is located outside the dust accumulation cover, the triggering mechanism is located inside the dust accumulation cover, one end of the triggering mechanism is connected with the control mechanism, the triggering mechanism and the control mechanism are suitable for synchronous activity, the other end of the triggering mechanism is suitable for contacting and positioning the object to be dusted, and the control mechanism is suitable for relative activity with the triggering mechanism during positioning, so that the first channel is opened. The application has the characteristics of convenient positioning and high dust removal efficiency, can efficiently and specifically remove dust from the gap between the reducing furnace bottom and the electrode rod, and requires fewer workers for dust removal operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reduction furnace maintenance equipment, in particular to a reduction furnace bottom plate dust removal equipment. BACKGROUND

[0002] In the design of the present polycrystalline silicon reduction workshop furnace bottom plate, the electrode column installation mode is inlaid insertion type installation, and the electrode column and the furnace bottom plate have a gap of about 5mm. After the reduction furnace is disassembled and operated, the furnace bottom plate needs to be cleaned again, the electrode column magnetic ring is taken out, cleaned and reinstalled. Before installing the magnetic ring, the debris and dust deposited in the gap between the magnetic ring and the electrode need to be cleaned. However, the workshop of the reduction workshop has a higher requirement for cleanliness, and cannot have floating dust.

[0003] However, the existing reduction furnace bottom plate dust removal equipment process has the following defects: the traditional dust removal means generally only increases the cover to prevent dust flying, but the cover needs to be positioned by multiple personnel, which is low in efficiency and high in labor cost, and it is difficult to effectively remove dust from the gap between the electrode column and the furnace bottom plate by relying on the cover alone. SUMMARY

[0004] An object of the present application is to provide a reduction furnace bottom plate dust removal equipment which is convenient to operate and has good dust removal effect.

[0005] To achieve the above object, the technical scheme adopted by the present application is as follows: a reduction furnace bottom plate dust removal equipment, comprising a dust accumulation cover, the dust accumulation cover is suitable for accommodating a dust removal object on the reduction furnace bottom plate, a first channel and a second channel are arranged on the dust accumulation cover, an opening device is arranged at the first channel, the opening device is suitable for controlling the opening and closing of the first channel, the opening device comprises a control mechanism and a trigger mechanism, the control mechanism is located outside the dust accumulation cover, the trigger mechanism is located inside the dust accumulation cover, one end of the trigger mechanism is connected to the control mechanism, the trigger mechanism and the control mechanism are suitable for synchronous movement, the other end of the trigger mechanism is suitable for contacting and positioning the dust removal object, and the control mechanism is suitable for relative movement with the trigger mechanism when positioned to open the first channel.

[0006] In some embodiments, at least one gas inlet pipe is arranged in the dust accumulation cover, the rear end of the gas inlet pipe is connected to the control mechanism, the front end of the gas inlet pipe is provided with a first guide section, a dust removal gap is formed between the periphery of the dust removal object and the reduction furnace bottom plate, the first guide section is suitable for extending obliquely above the dust removal gap, the first guide section is parallel to the formation direction of the dust removal gap, the front end of the first guide section is provided with an air outlet section, and the air outlet section faces the opening of the dust removal gap.

[0007] In some embodiments, the gas inlet pipe is provided with a second guide section, the second guide section is connected with the opening device and the first guide section, the second guide section is curvedly arranged, and the second guide section is adapted to avoid the trigger mechanism, the dust accumulation cover and the object to be cleaned.

[0008] In some embodiments, the number of the gas inlet pipes is multiple, and the gas inlet pipes are uniformly arranged around the object to be cleaned.

[0009] In some embodiments, the object to be cleaned is a cylindrical structure, the number of the gas inlet pipes is three, and the gas inlet pipes are arranged at equal intervals along the circumference of the object to be cleaned.

[0010] In some embodiments, the trigger mechanism comprises a top rod, a position limiter, a restorer and a valve body, the position limiter is located at one end of the first channel close to the inside of the dust accumulation cover, the valve body is located at one end of the first channel away from the inside of the dust accumulation cover, the top rod passes through the position limiter and the valve body, a gas channel is formed between the top rod and the valve body, the restorer is arranged between the position limiter and the valve body, the restorer is adapted to make the valve body close to the top rod and close the gas channel, and the control mechanism is connected with the valve body, and the control mechanism is adapted to make the valve body close to or away from the position limiter.

[0011] In some embodiments, the position limiter comprises a position limiter seat and a position limiter piece, the position limiter seat is fixedly arranged in the first channel, the position limiter piece is connected with the top rod through a screw rod, and the restoring direction of the restorer is the same as the moving direction of the position limiter piece.

[0012] In some embodiments, the top rod is provided with a conical sealing body at one end close to the valve body, the end of the conical sealing body is directed towards the valve body, a sealing groove is formed in the valve body to cooperate with the conical sealing body, and the gas channel is in communication with the sealing groove.

[0013] In some embodiments, the control mechanism comprises a connecting seat, an activity space is formed between the connecting seat and the valve body, one end of the top rod close to the valve body is located in the activity space, and a gas inlet is arranged outside the connecting seat and in communication with the activity space; the control mechanism further comprises a control rod, the length direction of the control rod is perpendicular to the restoring direction of the restorer; and a dust collector inlet is arranged on the second channel.

[0014] In some embodiments, one end of the trigger mechanism contacting the object to be cleaned is a tray structure, a profiled surface is arranged on the tray structure, the profiled surface at least partially matches the surface of the object to be cleaned, and the profiled surface is adapted to position the tray structure and the object to be cleaned.

[0015] Compared with the prior art, the application has the beneficial effects that:

[0016] 1、The reducing furnace bottom dust removal device of the application can realize the correlation between the opening and closing state of dust removal and the positioning of the electrode column by adding an opening device on the dust accumulation cover, so that when the dust accumulation cover is lifted or not positioned with the electrode column, the opening device cannot control the opening and closing state of dust removal. When operating, only one operator is needed to realize the carrying of the dust accumulation cover and the control of the opening and closing state of dust removal at the same time. However, at least two operators are needed to carry the dust accumulation cover and control the opening and closing state of dust removal in the traditional dust removal operation. Therefore, the improved reducing furnace bottom dust removal device can reduce the number of personnel needed for dust removal, reduce labor costs, and improve dust removal efficiency.

[0017] 2、The reducing furnace bottom dust removal device of the application can further improve the dust removal efficiency by adding a gas inlet pipe and optimizing the layout of the gas inlet pipe under the premise of ensuring that the dust accumulation cover can be positioned more accurately, without the need for personnel to assist in control, and is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a whole structure view according to a preferred embodiment of the application.

[0019] Figure 2 is a structure schematic view of the application cooperating with the object to be dusted according to a preferred embodiment of the application.

[0020] Figure 3 is a whole structure view according to a preferred embodiment of the application Figure 2 is an enlarged view of a in

[0021] Figure 4 is an enlarged view of b in Figure 2 is an enlarged view of b in

[0022] Figure 5 is a layout schematic view of the gas inlet pipe according to a preferred embodiment of the application.

[0023] In the figure: 1, dust cover; 11, first channel; 12, second channel; 121, dust collector inlet; 2, opening device; 21, control mechanism; 211, connecting seat; 2111, moving space; 2112, gas inlet; 212, control rod; 22, trigger mechanism; 221, top rod; 2211, conical sealing body; 2212, tray structure; 2213, profiled surface; 222, stopper; 2221, stop seat; 2222, stopper; 223, restorer; 224, valve body; 2241, sealing groove; 225, gas channel; 3, gas inlet pipe; 31, first guide section; 311, air outlet section; 32, second guide section; 4, object to be dedusted; 5, reduction furnace chassis. DETAILED DESCRIPTION

[0024] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that, without conflict, the embodiments described below or the technical features between the embodiments can be combined to form new embodiments.

[0025] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0027] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] The present application will be further described below in conjunction with the drawings:

[0029] As Figures 1 to 5As shown, the application provides a reduction furnace bottom dust removal device, which comprises a dust accumulation cover 1 adapted to accommodate an object 4 to be dusted on a reduction furnace bottom 5, the dust accumulation cover 1 is provided with a first channel 11 and a second channel 12, the first channel 11 is provided with an opening device 2 adapted to control the opening and closing of the first channel 11, when the first channel 11 is opened, the dust accumulation cover 1 can accept gas from the outside to blow dust and carry out dust removal operation on the inside of the dust accumulation cover 1, and the second channel 12 can discharge the airflow to carry out the dust carried by the airflow entering through the first channel 11, which is discharged through the second channel 12. The advantage of this design is that the dust removal efficiency and quality are proportional to the airflow velocity of the first channel 11, by setting a higher airflow velocity at the first channel 11, high-efficiency dust removal can be realized, and better dust removal effect can be achieved.

[0030] As Figure 1 shown in the embodiment, the opening device 2 comprises a control mechanism 21 and a triggering mechanism 22, the control mechanism 21 is located outside the dust accumulation cover 1, and the triggering mechanism 22 is located inside the dust accumulation cover 1, one end of the triggering mechanism 22 is connected to the control mechanism 21, and the triggering mechanism 22 and the control mechanism 21 are adapted to be synchronously active, in the synchronous active state, the first channel 11 can be kept closed, so that the reduction furnace bottom dust removal device will not trigger the dust removal action during the transfer process, facilitating the single operator to carry out the transfer operation, reducing the labor cost, improving the transfer efficiency, the other end of the triggering mechanism 22 is adapted to be in contact with the object 4 to be dusted, when the triggering mechanism 22 is positioned with the object 4 to be dusted, the control mechanism 21 is adapted to relatively move with the triggering mechanism 22 to open the first channel 11, after the first channel 11 is opened, the dust removal operation can be carried out, at this time, the positioning between the reduction furnace bottom dust removal device and the object 4 to be dusted through the triggering mechanism 22 can reduce the operation difficulty of the single operator after the transfer to carry out the installation and positioning, improve the dust removal efficiency and dust removal effect, and due to the positioning between the triggering mechanism 22 and the object 4 to be dusted, a more stable dust removal state can be obtained, and approximate dust removal effect can be obtained for each object 4 to be dusted, avoiding the situation that the dust removal effect of individual object 4 to be dusted is not ideal.

[0031] In some embodiments, the dust accumulation cover 1 is preferably made of metal, glass, plastic or other hard materials, compared with the flexible cover, no additional operator is needed to assist the support of the dust accumulation cover 1, further reducing the labor needed during the dust removal process, and the bottom of the dust accumulation cover 1 needs to be able to fit the reduction furnace bottom 5 to avoid leakage.

[0032] As Figure 1In the embodiment shown, at least one gas inlet pipe 3 is arranged in the dust cover 1, the rear end of the gas inlet pipe 3 is connected to the control mechanism 21, the gas inlet pipe 3 is used to guide the gas entering the first channel 11 and blow the gas to the target position to improve the dust removal effect, the front end of the gas inlet pipe 3 is provided with a first guide section 31, and a dust removal gap is formed between the periphery of the object to be dusted 4 and the reduction furnace chassis 5, the first guide section 31 is adapted to extend obliquely above the dust removal gap, the first guide section 31 is parallel to the forming direction of the dust removal gap, and the front end of the first guide section 31 is provided with an air outlet section 311, the air outlet section 311 faces the opening of the dust removal gap, the first guide section 31 is arranged in relative position with the dust removal gap and the air outlet section 311 is opened, so as to realize side blowing dust removal of the dust removal gap, compared with the straight blowing dust removal in the traditional dust removal process, the gas flow circulation can be formed in the interior of the dust cover 1, so that the dust in the dust removal gap can be brought out more efficiently, and the dust removal efficiency and effect are improved.

[0033] The nitrogen gas entering the first channel 11 can blow out the silicon powder and some particulate matters in the dust removal gap, and the nitrogen gas can suck the silicon powder and fine particulate matters into the dust collecting tank for collection after blowing them up.

[0034] The gas inlet pipe 3 is provided with a second guide section 32, the second guide section 32 is connected to the opening device 2 and the first guide section 31, the second guide section 32 is curvedly arranged, the second guide section 32 is adapted to avoid the trigger mechanism 22, the dust cover 1 and the object to be dusted 4, the second guide section 32 is used to help the first guide section 31 to avoid the above-mentioned objects and smoothly extend to the set position, and the second guide section 32 itself needs to have supportability to ensure that the avoidance state of the trigger mechanism 22, the dust cover 1 and the object to be dusted 4 and the like can be maintained.

[0035] In some embodiments, the material of the gas inlet pipe 3 is preferably stainless steel, the gas inlet pipe 3 itself has moldability, and after shaping, it can maintain a fixed shape to ensure the functions of the first guide section 31 and the second guide section 32.

[0036] In some embodiments, since the object to be dusted 4 has a certain height, the height of the trigger mechanism 22 can be set to be higher than the highest point of the object to be dusted 4, and the trigger mechanism 22 can be cooperated with the position near the highest point of the object to be dusted 4 to ensure the accuracy of positioning and avoid the influence of other protruding structures on the reduction furnace chassis 5 on the trigger mechanism 22.

[0037] In some embodiments, in order to facilitate the connection of the control mechanism 21 and the triggering mechanism 22, and to facilitate the covering of the dust collection cover 1 on the object 4 to be cleaned, the control mechanism 21 and the triggering mechanism 22 can be arranged near the highest point of the dust collection cover 1, which can effectively reduce the structural interference that may occur during the covering of the dust collection cover 1 on the object 4 to be cleaned, improve the smoothness of the covering of the dust collection cover 1, and in addition, when designing the second guide section 32, the structural interference factors can also be reduced accordingly, thereby reducing the design and arrangement difficulty of the second guide section 32.

[0038] It can be understood that when the control mechanism 21 and the triggering mechanism 22 are located near the highest point of the dust collection cover 1, the first channel 11 also needs to be correspondingly located near this position.

[0039] The number of gas inlet pipes 3 is multiple, and the gas inlet pipes 3 are evenly arranged around the object 4 to be cleaned. Each gas inlet pipe 3 corresponds to a certain range around the object 4 to be cleaned for dust removal. The number of gas inlet pipes 3 needs to at least meet the requirement of covering the entire range around the object 4 to be cleaned, so as to ensure the dust removal effect.

[0040] As shown in the embodiment of Figure 5 , the object 4 to be cleaned is a cylindrical structure, and the number of gas inlet pipes 3 is three. The gas inlet pipes 3 are arranged at equal intervals along the circumference of the object 4 to be cleaned. In the case of three gas inlet pipes 3, relatively good dust removal effect can be obtained with less structure.

[0041] In this application, the object 4 to be cleaned generally refers to an electrode column. The bottom dust removal device of the reduction furnace can be used for targeted dust removal and cleaning of the connection between the electrode column and the reduction furnace bottom 5, so as to facilitate the installation of magnetic rings and other parts.

[0042] As shown in the embodiment of Figure 2 and 3In the shown embodiment, at least part of the structure of the control mechanism 21 and the trigger mechanism 22 is located in the first channel 11, facilitating the installation and fixation between the control mechanism 21 and the trigger mechanism 22 and the dust collecting cover 1. The trigger mechanism 22 includes a top rod 221, a position limiter 222, a reset device 223 and a valve body 224. The position limiter 222 is located at the end of the first channel 11 close to the inside of the dust collecting cover 1, and the valve body 224 is located at the end of the first channel 11 away from the inside of the dust collecting cover 1. The top rod 221 passes through the position limiter 222 and the valve body 224, and a gas passage 225 is formed between the top rod 221 and the valve body 224. The reset device 223 is arranged between the position limiter 222 and the valve body 224, and is adapted to make the valve body 224 close to the top rod 221 and close the gas passage 225. The control mechanism 21 is connected with the valve body 224, and is adapted to make the valve body 224 close to or away from the position limiter 222. It can be understood that, under the action of no external force, the valve body 224 is affected by the reset device 223, and the top rod 221 and the valve body 224 can always keep in a closed state of cooperation sealing. Both of them can move simultaneously. When the top rod 221 abuts against the object 4 to be dusted, the top rod 221 changes from a moving state to a fixed state. At this time, the valve body 224 is activated again, and then the valve body 224 is unsealed with the top rod 221, so as to open the dusting state.

[0043] It is worth noting that the position limiter 222 and the top rod 221 are not sealed, so that the airflow can flow freely before the valve body 224, avoiding affecting the function of the valve body 224.

[0044] In some embodiments, the reset device 223 preferably uses a spring.

[0045] As Figure 3 In the shown embodiment, the position limiter 222 includes a position seat 2221 and a position piece 2222. The position seat 2221 is fixedly arranged in the first channel 11, and the position piece 2222 is connected with the top rod 221 through a screw rod. The reset direction of the reset device 223 is the same as the moving direction of the position piece 2222. The position limiter 222 can adjust the position of the reset device 223, so as to change the moving stroke of the valve body 224.

[0046] Specifically, the position piece 2222 can be a nut, which can change the height of the lower end of the reset device 223 by moving on the top rod 221. It can be understood that, in the case that the highest point of the valve body 224 is limited by the control mechanism 21, the height of the upper end of the reset device 223 is limited by the valve body 224. Therefore, the change of the height of the lower end of the reset device 223 can ultimately affect the activity difficulty and the maximum moving stroke of the valve body 224, so as to adjust and control the opening mode of the dusting state.

[0047] As Figure 3In the shown embodiment, the top rod 221 is provided with a conical sealing body 2211 at one end close to the valve body 224, the end of the conical sealing body 2211 is towards the valve body 224, the valve body 224 is provided with a sealing groove 2241 matched with the conical sealing body 2211, and the gas passage 225 is communicated with the sealing groove 2241, the conical sealing body 2211 can not only improve the sealing between the top rod 221 and the valve body 224, but also prevent the top rod 221 from being separated downward from the valve body 224, and plays a role of strengthening the connection.

[0048] In some embodiments, the conical sealing body 2211 is detachably fixed on the top rod 221 by a nut, which can facilitate replacement and maintenance.

[0049] As Figure 3 In the shown embodiment, the control mechanism 21 comprises a connecting seat 211, and an activity space 2111 is formed between the connecting seat 211 and the valve body 224, the top rod 221 is located in the activity space 2111 at one end close to the valve body 224, and the connecting seat 211 is provided with a gas inlet 2112 communicated with the activity space 2111.

[0050] It is worth noting that since the top rod 221 can be upwardly moved to adapt to the height of the object to be dedusted 4 and be positioned, when the top rod 221 contacts the object to be dedusted 4, the size error of the object to be dedusted 4 also needs to be considered, therefore, the height of the activity space 2111 needs to reserve enough space for the top rod 221 to move, so as to avoid structural interference.

[0051] As Figure 2 In the shown embodiment, the control mechanism 21 further comprises a control rod 212, the length direction of the control rod 212 is perpendicular to the reset direction of the reset device 223, the control rod 212 can open the valve body 224 by pressing downward, the operation is more labor-saving, and only one operator is needed to complete the operation, and the control rod 212 can also be used for lifting and carrying the reducing furnace bottom dust removal equipment, when lifting and carrying, the valve body 224 can remain in a closed state, and only one operator is needed to complete the operation.

[0052] As Figure 4 In the shown embodiment, the trigger mechanism 22 is provided with a tray structure 2212 at one end contacting the object to be dedusted 4, that is, the top rod 221 is provided with the tray structure 2212 at one end contacting the object to be dedusted 4, the tray structure 2212 is provided with a profiling surface 2213, the profiling surface 2213 at least partially abuts the surface of the object to be dedusted 4, the profiling surface 2213 is suitable for positioning the tray structure 2212 and the object to be dedusted 4, the profiling surface 2213 can play a guiding role to ensure accurate positioning, and the profiling surface 2213 can also protect the surface of the object to be dedusted 4 and reduce abrasion.

[0053] In some embodiments, the tray structure 2212 can abut the top of the object 4 to be cleaned, and the profiling surface 2213 can be positioned in cooperation with the top of the object 4 to be cleaned, so as to minimize the travel of the top rod 221 and reduce the structural interference between the gas inlet pipe 3.

[0054] In some embodiments, the positioning of the object 4 to be cleaned needs to have at least two surface types greater than 180°, and the profiling surface 2213 needs to have at least two corresponding surface types with an included angle less than 180°, so as to improve the positioning accuracy.

[0055] In some embodiments, the positioning of the object 4 to be cleaned needs to have at least two surface types less than 180°, and the profiling surface 2213 needs to have at least two corresponding surface types with an included angle greater than 180°, so as to improve the positioning accuracy.

[0056] As shown in the embodiments, Figure 1 In order to facilitate the connection of the second channel 12, a cleaner access port 121 can be arranged on the second channel 12 to improve the convenience and stability of the connection between the second channel 12 and the cleaner.

[0057] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A reduction furnace hearth dust removal apparatus characterized by: The dust cover is provided with a first channel and a second channel, the first channel is provided with an opening device, the opening device is adapted to control the opening and closing of the first channel, the opening device comprises a control mechanism and a trigger mechanism, the control mechanism is located outside the dust cover, the trigger mechanism is located inside the dust cover, one end of the trigger mechanism is connected with the control mechanism, the trigger mechanism and the control mechanism are adapted to be synchronously active, the other end of the trigger mechanism is adapted to be in contact with the object to be dedusted, the control mechanism is adapted to be relatively active with the trigger mechanism when positioned, so that the first channel is opened. The trigger mechanism comprises a top rod, a position limiter, a restorer and a valve body, the position limiter is located at one end of the first channel close to the inside of the dust cover, the valve body is located at one end of the first channel away from the inside of the dust cover, the top rod passes through the position limiter and the valve body, a gas channel is formed between the top rod and the valve body, the restorer is arranged between the position limiter and the valve body, the restorer is adapted to make the valve body close to the top rod and close the gas channel, the control mechanism is connected with the valve body, and the control mechanism is adapted to make the valve body close to or away from the position limiter.

2. A reduction furnace hearth dust removal apparatus as claimed in claim 1, characterized in that: At least one gas inlet pipe is arranged in the dust cover, the rear end of the gas inlet pipe is connected with the control mechanism, the front end of the gas inlet pipe is provided with a first guide section, a dedusting gap is formed between the periphery of the object to be dedusted and the reduction furnace bottom, the first guide section is adapted to extend to the obliquely upper side of the dedusting gap, the first guide section is parallel to the forming direction of the dedusting gap, and the front end of the first guide section is provided with an air outlet section, which faces the opening of the dedusting gap.

3. A reduction furnace hearth dust removal apparatus as claimed in claim 2, characterized in that: A second guide section is arranged on the gas inlet pipe, the second guide section is connected with the opening device and the first guide section, the second guide section is curvedly arranged, and the second guide section is adapted to avoid the trigger mechanism, the dust cover and the object to be dedusted.

4. A reduction furnace hearth dust removal apparatus as claimed in claim 2, characterized in that: The number of gas inlet pipes is multiple, and the gas inlet pipes are uniformly arranged around the object to be dedusted.

5. A reduction furnace bottom tray dust removal apparatus according to claim 4, characterized in that: The object to be dedusted is a cylindrical structure, the number of gas inlet pipes is three, and the gas inlet pipes are arranged at equal intervals along the circumference of the object to be dedusted.

6. A reduction furnace hearth dust removal apparatus as claimed in claim 1, characterized in that: The position limiter comprises a limiting seat and a limiting piece, the limiting seat is fixedly arranged in the first channel, the limiting piece is connected with the top rod through a lead screw, and the reset direction of the restorer is the same as the moving direction of the limiting piece.

7. A reduction furnace hearth dust removal apparatus as claimed in claim 1, characterized in that: A conical sealing body is arranged at one end of the top rod close to the valve body, the end of the conical sealing body faces the valve body, a sealing groove is formed in the valve body matched with the conical sealing body, and the gas channel is communicated with the sealing groove.

8. A reduction furnace hearth dust removal apparatus as claimed in claim 1, characterized in that: The control mechanism comprises a connecting seat, a moving space is formed between the connecting seat and the valve body, the top rod is located in the moving space near one end of the valve body, and a gas inlet is arranged outside the connecting seat and communicates with the moving space; the control mechanism further comprises a control rod, and the length direction of the control rod is perpendicular to the reset direction of the reset device; a dust collector inlet is arranged on the second channel.

9. A reduction furnace hearth dust removal apparatus as claimed in claim 1, characterized in that: One end of the trigger mechanism in contact with the object to be dusted is a tray structure, a profiling surface is arranged on the tray structure, the profiling surface at least partially matches the surface of the object to be dusted, and the profiling surface is suitable for positioning the tray structure and the object to be dusted.

Images