Device for taking out iron mass in evaporating crucible

Abstract

The invention discloses a device for taking out iron clusters in an evaporation crucible, and relates to the technical field of fetching manipulators, the device comprises a hoisting frame, the hoisting frame is connected with a hoisting mechanism, a drilling connecting shaft is rotatably mounted on the hoisting frame, a self-tapping section is fixedly arranged at the lower end of the drilling connecting shaft, and a drilling connecting driver is mounted between the drilling connecting shaft and the hoisting frame; the portion, located on the upper side of the self-tapping section, of the drill connecting shaft is sleeved with an auxiliary grabbing and connecting cylinder, at least three auxiliary grabbing and connecting teeth which are arranged in the circumferential direction are fixedly arranged on the auxiliary grabbing and connecting cylinder, and the auxiliary grabbing and connecting teeth are used for penetrating iron balls. A grabbing and connecting cylinder supporting table located on the lower side of the auxiliary grabbing and connecting cylinder and a grabbing and connecting cylinder pressing table located on the upper side of the auxiliary grabbing and connecting cylinder are fixedly arranged on the drilling and connecting shaft, and a drilling and grabbing interval is arranged between the grabbing and connecting cylinder pressing table and the auxiliary grabbing and connecting cylinder and used for enabling the grabbing and connecting cylinder pressing table to press and hold the auxiliary grabbing and connecting cylinder after the self-tapping section drills the iron mass. The device is low in operation experience requirement, stable and reliable in iron mass fixing and convenient to take, iron taking safety can be improved, and pot damage can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of object-taking manipulators, and in particular to a device for taking out iron masses in an evaporating crucible. Background Art

[0002] In the indirect zinc oxide production, a melting crucible and an evaporating crucible are arranged in the kiln. The zinc in the zinc-containing material is melted in the melting crucible, and the molten zinc liquid is introduced into the evaporating crucible. The evaporating crucible is used to continuously evaporate the zinc liquid into zinc vapor in a high temperature environment. Fig.10 As shown, zinc vapor is ejected through the upper nozzle of the evaporation crucible; a box chamber structure is arranged at the upper nozzle of the evaporation crucible to form an oxidation chamber, and the zinc vapor ejected from the upper nozzle contacts the air in the oxidation chamber to undergo an oxidation reaction to obtain zinc oxide particles, which are then guided to a relevant collecting device to obtain a zinc oxide product.

[0003] Among them, Fig.10 and Fig.11 As shown, the evaporating crucible in the kiln is divided into two parts: the pot body and the pot cover. The pot body is located in the kiln and receives high-temperature heating. The pot cover is sealed with refractory bricks to form the top wall of the kiln and isolate the kiln from the oxidation chamber. An upper nozzle is set on the pot cover, and the zinc vapor continuously vaporized in the evaporating crucible is sprayed into the oxidation chamber through the upper nozzle. Considering the cost of raw materials, most of the indirect zinc oxide production at this stage uses zinc slag and other zinc-containing materials as raw materials. These zinc-containing materials contain more iron impurities. During production, for the temperature of only about 1000°C at the evaporating crucible, the iron cannot reach a molten state (the melting point of iron is 1539°C). Therefore, the iron will gradually accumulate in the evaporating crucible and form the following. Fig.10 and Fig.11 The honeycomb-like iron mass state shown in the figure. The presence of iron mass will reduce the capacity of zinc liquid in the evaporation crucible, affecting the heating and output quality. Therefore, after a cycle of zinc oxide production, the machine needs to be stopped for cleaning.

[0004] like Fig.11 As shown, during cleaning, the oxidation chamber structure is dismantled, the pot cover of the evaporation crucible is removed, and the iron mass is extracted from the pot body. However, due to the large volume and weight of the iron mass, it is difficult to extract it manually, so currently it is mainly done by winding a steel wire rope around the gap between the iron mass and the evaporation crucible, and then lifting it with a forklift or other lifting equipment. However, this operation method has the following problems.

[0005] First, the gap between the iron ball and the evaporation crucible is caused by the cooling and shrinkage of the iron ball after the furnace is shut down. The maximum width of the gap is only 2 to 3 cm. Since the iron ball removal process is a one-time process, it is impossible to perform secondary reinforcement operations during the extraction process. Therefore, the requirements for winding the wire rope before extraction are very high, and it must be able to achieve a level of stable performance to extract the iron ball in one time. Limited by the above narrow gap, this wire rope winding operation is very difficult, and even skilled workers find it difficult to meet the winding requirements. Therefore, iron balls often fall during the extraction process. A heavy iron ball will destroy the crucible and create safety risks. After the crucible is destroyed, the refractory brick partition layer must be removed before a new crucible can be replaced. After the replacement, the refractory brick partition layer must be re-sealed, which increases the workload of dismantling the furnace, increases maintenance costs, and delays the production progress of the next cycle.

[0006] Second, although the iron ball shrinks slightly after the furnace is shut down, its bottom always keeps in contact with the bottom of the evaporating crucible, so there is adhesion between the bottom of the iron ball and the bottom of the evaporating crucible. Based on this, the first step in tying the iron ball with a steel wire rope is not to lift it up directly, but to shake the steel wire rope to break the adhesion between the bottom of the iron ball and the bottom of the evaporating crucible before the extraction operation can be achieved. The above shaking operation is still not possible by manpower, and can only be completed by skilled workers operating a forklift or other lifting equipment for lifting iron. The operation is difficult and requires high manual experience.

[0007] To this end, it is necessary to provide a more excellent means of obtaining iron in combination with the above problems. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a device for removing iron balls from an evaporating crucible, which has low requirements on operating experience, can firmly and reliably fix iron balls, is convenient to extract, and is beneficial to improving the safety of iron extraction and reducing the occurrence of pot damage.

[0009] In order to solve the above technical problems, the technical solution of the present invention is: a device for removing iron balls in an evaporating crucible comprises a lifting frame, the lifting frame is connected to a lifting mechanism, a drill shaft is rotatably installed on the lifting frame, a self-tapping section is fixedly provided at the lower end of the drill shaft, and a drill driver is installed between the drill shaft and the lifting frame; an auxiliary grasping tube is mounted on the drill shaft at the upper side of the self-tapping section, and at least three circumferentially arranged auxiliary grasping teeth are fixedly provided on the auxiliary grasping tube, and the auxiliary grasping teeth are used to penetrate the iron ball; a grasping tube support platform located at the lower side of the auxiliary grasping tube and a grasping tube pressing platform located at the upper side of the auxiliary grasping tube are fixed on the drill shaft, a drill grasping space is provided between the grasping tube pressing platform and the auxiliary grasping tube, and the drill grasping space is used to enable the grasping tube pressing platform to press the auxiliary grasping tube after the self-tapping section drills into the iron ball.

[0010] As a preferred technical solution, the insertion end of the auxiliary grasping tooth is higher than the bottom end of the self-tapping section.

[0011] As a preferred technical solution, the auxiliary grasping teeth are arranged in a spiral shape around the drill shaft.

[0012] As a preferred technical solution, the spiral direction of the auxiliary grabbing teeth is set to be the same as the spiral direction of the spiral blades on the self-tapping section.

[0013] As a preferred technical solution, the self-tapping section includes a cylindrical section fixedly connected to the drill coupling shaft, a conical section is fixedly provided at the lower end of the cylindrical section, and continuous self-tapping spiral blades are provided on the cylindrical section and the conical section; the heights of the self-tapping spiral blades at the cylindrical section are set equally, and the heights of the self-tapping spiral blades at the conical section are gradually reduced from top to bottom.

[0014] As a preferred technical solution, the auxiliary grasping cylinder includes two relatively arranged grasping half cylinders, and assembly ear plates are fixedly provided at corresponding side edges of the two grasping half cylinders, and the corresponding assembly ear plates are fixedly connected by bolts.

[0015] As a preferred technical solution, when the drill coupling driver drives the drill coupling shaft to rotate forward, the self-tapping section drills into the iron ball, and when the drill coupling driver drives the drill coupling shaft to rotate reversely, the self-tapping section exits the iron ball.

[0016] As a preferred technical solution, the lifting mechanism includes a transversely arranged lifting rail, a traveling trolley is installed on the lifting rail, a lifting winch is fixedly installed on the traveling trolley, and the lifting frame is suspended on the lifting chain of the lifting winch.

[0017] As a preferred technical solution, a sway generator is installed on the lifting frame.

[0018] As a preferred technical solution, the sway generator includes a sway drive motor installed on the lifting frame, and an eccentric body is fixedly installed on the power end of the sway drive motor.

[0019] Due to the adoption of the above technical scheme, the device for removing the iron ball in the evaporating crucible comprises a lifting frame, the lifting frame is connected with a lifting mechanism, a drill shaft is rotatably installed on the lifting frame, a self-tapping section is fixedly provided at the lower end of the drill shaft, and a drill driver is installed between the drill shaft and the lifting frame; an auxiliary grasping tube is sleeved on the drill shaft at the upper side of the self-tapping section, and at least three circumferentially arranged auxiliary grasping teeth are fixed on the auxiliary grasping tube, and the auxiliary grasping teeth are used to penetrate the iron ball; a grasping tube support platform located at the lower side of the auxiliary grasping tube and a grasping tube pressing platform located at the upper side of the auxiliary grasping tube are fixed on the drill shaft, a drill grasping interval is provided between the grasping tube pressing platform and the auxiliary grasping tube, and the drill grasping interval is used to enable the grasping tube pressing platform to press the auxiliary grasping tube after the self-tapping section drills into the iron ball. The present invention uses the self-tapping section to drill into the iron ball to form a strong bite, and the auxiliary grasping tube forms a piercing grasping around the self-tapping section during the drilling process, and the two together realize the stable and reliable fixation of the iron ball. Therefore, by shaking the lifting frame, the bottom of the iron ball and the bottom of the evaporating crucible can be driven to break away from the adhesion, and the above-mentioned multi-point connection also makes it difficult for the iron ball to crack during the shaking process. Finally, after being lifted by the lifting mechanism, the iron ball can be directly taken out, and the iron ball can be taken out smoothly and conveniently, which is conducive to improving the safety of iron removal and reducing the occurrence of pot damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention. Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the auxiliary grasping tube according to an embodiment of the present invention; Figure 3 1. It is a three-dimensional structure diagram of a drill coupling shaft according to an embodiment of the present invention; Figure 4 is a schematic cross-sectional structural diagram of an embodiment of the present invention; Figure 5 yes Figure 4 The state diagram when the self-drilling section is drilled into the auxiliary grasping teeth and contacts with the iron ball; Figure 6 yes Figure 5 The state diagram when the self-drilling section continues to drill until the grabbing tube pressing platform presses against the auxiliary grabbing tube; Figure 7 yes Figure 6 The state diagram of the self-drilling section continuing to drill and the auxiliary grasping teeth piercing the iron ball; Figure 8 This is a state diagram of the self-tapping section driving the auxiliary grasping teeth to be pulled out when it exits the iron mass; Fig. 9 yes Figure 8The state diagram after the self-tapping section and the auxiliary grasping teeth are separated from the iron ball; Fig.10 This is the structural principle diagram of the existing zinc oxide production kiln; Fig.11 This is the schematic diagram of the existing zinc oxide production kiln when it is stopped to take out iron.

[0021] In the figure: 1-lifting frame; 2-lifting mechanism; 21-lifting guide rail; 22-traveling trolley; 23-lifting winch; 24-lifting chain; 3-drilling shaft; 31-drilling driver; 32-grabbing tube support; 33-grabbing tube pressure table; 34-drilling grab interval; 4-self-tapping section; 41-column section; 42-conical section; 43-self-tapping spiral blade; 5-auxiliary grabbing tube; 51-auxiliary grabbing teeth; 52-grabbing half tube; 53-assembling ear plate; 6-sway generator; 61-swaying drive motor; 62-eccentric body; 9-kiln; 91-oxidation chamber; 92-refractory brick partition layer; 93-evaporation crucible; 94-pot body; 95-pot cover; 96-upper nozzle; 97-iron ball. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described only by way of illustration. Needless to say, those of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0023] like Figure 1 As shown, the device for removing iron balls from an evaporating crucible comprises a lifting frame 1, and the lifting frame 1 is connected to a lifting mechanism 2. The lifting mechanism 2 is a mechanism that can lift or lower the lifting frame 1, and it is preferably a mechanism that uses a chain belt such as a wire rope or a chain to hang the lifting frame 1. The lifting mechanism 2 in this embodiment comprises a transversely arranged lifting guide rail 21, and a traveling trolley 22 is installed on the lifting guide rail 21. A lifting winch 23 is fixedly installed on the traveling trolley 22. The lifting winch 23 is driven by a motor to rotate the winch wheel to achieve the purpose of releasing the lifting chain 24 or rolling up the lifting chain 24. Conventionally, the lifting frame 1 is hung on the lifting chain 24 of the lifting winch 23. The structural principles of the above traveling trolley 22 and the lifting winch 23 are easily obtained by those skilled in the art in combination with the prior art, and will not be repeated here. This embodiment adopts the lifting mechanism 2 of the lifting guide rail 21 and the traveling trolley 22. For the actual situation of zinc oxide production workshops where multiple furnaces are usually arranged, it is easier to form a common structure, which is conducive to simplifying the equipment layout.

[0024] like Figures 4 to 9As shown, a drill coupling shaft 3 is rotatably mounted on the lifting frame 1, and the drill coupling shaft 3 is rotatably mounted using at least two sets of bearings. And because the drill coupling shaft 3 is a force transmission structure between the lifting frame 1 and the iron mass 97 during the lifting process, its bearings should include at least one set of bearings that can better bear the axial force, such as tapered roller bearings, thrust bearings, etc., which are easily obtained by those skilled in the art in combination with conventional technical means, and will not be repeated here.

[0025] like Figures 3 to 9 As shown, a self-tapping section 4 is fixedly provided at the lower end of the drill coupling shaft 3, and a drill coupling driver 31 is installed between the drill coupling shaft 3 and the lifting frame 1. The self-tapping section 4 is a structure that can drill into the iron ball 97 by itself through its own rotation and axial thrust. For this embodiment, its axial thrust mainly comes from the gravity of the upper lifting frame 1, the drill coupling driver 31, the drill coupling shaft 3 and other components. Conventionally, when the drill coupling driver 31 drives the drill coupling shaft 3 to rotate forward, the self-tapping section 4 drills into the iron ball 97, and after drilling, the spiral blades on the self-tapping section 4 and the iron ball 97 are engaged to achieve a connection effect after drilling; when the drill coupling driver 31 drives the drill coupling shaft 3 to reverse, the self-tapping section 4 can exit the iron ball 97 along the channel formed during drilling.

[0026] Conventionally, such as Figure 2 As shown, the self-tapping section 4 includes a cylindrical section 41 fixedly connected to the drill coupling shaft 3, a conical section 42 is fixedly provided at the lower end of the cylindrical section 41, and continuous self-tapping spiral blades 43 are provided on the cylindrical section 41 and the conical section 42. Preferably, the heights of the self-tapping spiral blades 43 at the cylindrical section 41 are set equal, and the heights of the self-tapping spiral blades 43 at the conical section 42 are set to gradually decrease from top to bottom. The self-tapping spiral blades 43 whose heights gradually decrease from top to bottom can cooperate with the taper of the conical section 42 to achieve progressive self-tapping drilling. The self-tapping spiral blades 43 at the cylindrical section 41 are set to have equal heights. On the one hand, this can reduce the resistance during continuous drilling and help increase the drilling depth. On the other hand, during the withdrawal process, when the grasping tube support 32 of this embodiment rests against the auxiliary grasping tube 5 again, there is still a certain spiral connection length between the self-tapping section 4 and the iron ball 97, which prompts the auxiliary grasping teeth 51 to be pulled outward, thereby prompting the present embodiment to be separated from the iron ball 97 more smoothly. This functional principle is explained in a unified manner below.

[0027] like Figure 1 , Figure 2 ,as well as Figures 4 to 9As shown, the drill coupling shaft 3 is provided with an auxiliary grasping tube 5 on the upper side of the self-tapping section 4, and the auxiliary grasping tube 5 is fixed with at least three circumferentially arranged auxiliary grasping teeth 51, and the auxiliary grasping teeth 51 are used to pierce the iron ball 97. When the auxiliary grasping teeth 51 pierce the iron ball 97, it is equivalent to forming an auxiliary grasping connection around the self-tapping section 4 in the middle, and the two together form a multi-point connection, and the iron ball 97 is fixed firmly and reliably.

[0028] like Figures 4 to 9 As shown, the drilling shaft 3 is fixed with a grabbing tube support 32 located at the lower side of the auxiliary grabbing tube 5 and a grabbing tube pressing platform 33 located at the upper side of the auxiliary grabbing tube 5. The grabbing tube support 32 has two functions: one is to support the auxiliary grabbing tube 5 when it is not used at ordinary times; the other is to support the auxiliary grabbing tube 5 during the process of the self-tapping section 4 withdrawing from the iron ball 97, so as to enable the auxiliary grabbing teeth 51 to be pulled out of the iron ball 97, which is conducive to the smooth separation of this embodiment from the iron ball 97. The main function of the grabbing tube pressing platform 33 is to use the drilling force of the self-tapping section 4 to press down the auxiliary grabbing tube 5 when the self-tapping section 4 drills into a certain depth and presses against the auxiliary grabbing tube 5, so as to enable the auxiliary grabbing teeth 51 to penetrate into the iron ball 97.

[0029] Based on the fact that the drill shaft 3 is provided with boss structures on both the upper and lower sides of the auxiliary grasping tube 5, as shown in FIG. Figure 2 As shown, the auxiliary grasping tube 5 of this embodiment includes two grasping half-tubes 52 arranged opposite to each other, and assembly ear plates 53 are respectively fixedly provided at the corresponding side edges of the two grasping half-tubes 52, and the corresponding assembly ear plates 53 are fixedly connected by bolts. That is, the auxiliary grasping tube 5 is assembled and assembled to fit on the drill coupling shaft 3. Of course, when a frame needs to be fixedly arranged on the auxiliary grasping tube 5 to arrange the auxiliary grasping teeth 51, the frame is also a split structure and is fixedly connected by bolts.

[0030] Preferably, if Figure 4 As shown, the insertion end of the auxiliary grasping tooth 51 is higher than the bottom end of the self-tapping section 4. This setting is for the auxiliary grasping tooth 51 to not affect the alignment of the self-tapping section 4 during initial positioning, and secondly, during the drilling process, before the auxiliary grasping tooth 51 is inserted, the self-tapping section 4 can be drilled into a greater depth, which is conducive to providing the auxiliary grasping tooth 51 with a stronger insertion force.

[0031] Preferably, if Figure 1 , Figure 2 ,as well as Figures 4 to 9As shown, the auxiliary grasping teeth 51 are arranged in a spiral shape around the drill shaft 3, so as to facilitate the penetration of the iron mass 97 and generate a better grasping force during the extraction of the iron mass 97. Preferably, the spiral direction of the auxiliary grasping teeth 51 is arranged in the same direction as the spiral direction of the spiral blade on the self-tapping section 4, so that the grasping tube pressing platform 33 can provide the auxiliary grasping teeth 51 with a friction effect in the same direction during drilling, further promoting the auxiliary grasping teeth 51 to penetrate the iron mass 97 smoothly.

[0032] Preferably, if Figure 5 As shown, a drilling and grasping interval 34 is provided between the grasping tube pressing platform 33 and the auxiliary grasping tube 5, and the drilling and grasping interval 34 is used to enable the grasping tube pressing platform 33 to press the auxiliary grasping tube 5 after the self-drilling section 4 drills into the iron mass 97. The principle of this function will be described in detail later and will not be repeated here.

[0033] Preferably, if Figure 1 as well as Figures 4 to 9 As shown, a shaking generator 6 is installed on the lifting frame 1, so as to cause the bottom of the iron ball 97 to separate from the bottom of the evaporation crucible 93 by generating shaking after being connected to the iron ball 97 in this embodiment. The shaking generator 6 in this embodiment includes a shaking drive motor 61 installed on the lifting frame 1, and an eccentric body 62 is fixedly installed at the power end of the shaking drive motor 61. When the shaking drive motor 61 drives the eccentric body 62 to rotate, the centrifugal action of the eccentric body 62 causes the above shaking to occur.

[0034] The method of using this embodiment is as follows.

[0035] After stopping the furnace, removing the oxidation chamber 91 and removing the pot cover 95 of the evaporation crucible 93, the traveling trolley 22 is operated to travel on the lifting rail 21 until the traveling frame is directly above the pot body 94. The lifting winch 23 is operated to release the lifting chain 24, and the lifting frame 1 is lowered until the bottom end of the self-tapping section 4 abuts against the iron mass 97 in the evaporation crucible 93 and then stops. Figure 4 As shown. It should be noted here that the position of the self-tapping section 4 against the iron ball 97 should be as close to the top center of the iron ball 97 as possible, so that the surrounding auxiliary grasping teeth 51 can have a better grasping force with the iron ball 97 after the subsequent penetration of the iron ball 97. If necessary, when the bottom end of the self-tapping section 4 is close to the iron ball 97, manual auxiliary adjustment is performed to make the bottom end of the self-tapping section 4 as close to the top center of the iron ball 97 as possible. For the multi-furnace arrangement of the zinc oxide production workshop, its evaporation crucible 93 is basically below the guide path of the lifting guide rail 21, so basically no adjustment is required, and even if there is an adjustment amount, the adjustment amount is very small.

[0036] The drilling connection driver 31 is turned on, the drilling connection shaft 3 and the self-drilling section 4 rotate, and the lifting winch 23 is operated to continue to release the lifting chain 24, so that there is no pulling force between the lifting frame 1 and the lifting winch 23, and the self-drilling section 4 starts to drill under the gravity of the upper component. The drilling connection driver 31 adopts low-speed and high-torque output to achieve effective drilling in the honeycomb iron mass 97, which can be achieved by a high-power motor with a multi-stage and high-ratio planetary gear reducer. This is easily obtained by those skilled in the art in combination with conventional technical means and will not be repeated here. In this process, if necessary, the lifting frame 1 is manually assisted to ensure that the self-drilling section 4 is drilled in a basically vertical direction; after the cylindrical section 41 in the self-drilling section 4 is drilled into the iron mass 97, the self-drilling section 4 can be directionally drilled, and manual assistance can be released.

[0037] During the drilling process of the self-drilling section 4, initially Figure 4 As shown, the auxiliary grasping teeth 51 do not contact the iron ball 97. Based on the sleeve between the auxiliary grasping tube 5 and the drill coupling shaft 3, the auxiliary grasping tube 5 does not rotate, or rotates slightly due to the friction between the grasping tube support 32. After the self-drilling section 4 is drilled deep enough to the insertion end of the auxiliary grasping teeth 51 to contact the iron ball 97, as shown in FIG. Figure 5 As shown, the auxiliary grasping tube 5 no longer rotates. And blocked by the iron mass 97, the auxiliary grasping tube 5 also no longer continues to move downward with the drilling shaft 3. At this time, the setting of the drilling grasping interval 34 in this embodiment can make the grasping tube pressing platform 33 contact the upper end of the auxiliary grasping tube 5 only after the self-drilling section 4 continues to drill into the depth of the drilling grasping interval 34, as shown in FIG. Figure 6 As shown. At this time, under the action of the drilling force of the self-tapping section 4, the grasping tube pressing platform 33 generates a force to press down the auxiliary grasping tube 5, and the auxiliary grasping teeth 51 begin to penetrate the iron ball 97 under the action of this downward pressure. The greater drilling depth of the self-tapping section 4 makes the stronger bite force generated between the self-tapping spiral blades 43 and the iron ball 97, which can promote the auxiliary grasping teeth 51 to produce a reliable penetration effect. Since the auxiliary grasping teeth 51 themselves are spiral-shaped, and the spiral direction is consistent with the spiral direction of the blades on the self-tapping section 4, there is also a friction effect in the same direction between the grasping tube pressing platform 33 and the auxiliary grasping tube 5. The direction of the combined force of this friction and its downward pressure is closer to the spiral direction of the auxiliary grasping teeth 51, so it can promote the auxiliary grasping teeth 51 to achieve smoother penetration.

[0038] After the auxiliary grasping tooth 51 is inserted into the required depth, Figure 7As shown, the drilling drive 31 is operated to stop, and the lifting winch 23 stops releasing the lifting chain 24. Of course, when the speed at which the lifting winch 23 releases the lifting chain 24 is greater than the drilling speed of the self-tapping section 4, it can be stopped in advance, as long as the released lifting chain 24 does not affect the drilling action. Based on the iron mass 97 in the evaporating crucible 93, the upper surface of which is mostly uneven, a plurality of auxiliary grasping teeth 51 are provided on the auxiliary grasping tube 5 of the embodiment, which can ensure that at least one can complete the piercing action, and in the case of at least one piercing iron mass 97, it can play an auxiliary grasping role on the self-tapping section 4. In this case, between the drilling shaft 3 and the iron mass 97 of the embodiment, a stable connection state is formed with high-strength bite of the middle self-tapping spiral blade 43 and piercing and grasping at least one point on the periphery.

[0039] The shaking generator 6 is started to generate shaking drive, and the shaking drive is stopped until the iron ball 97 is also driven to shake. In this process, the shaking drive motor 61 can be controlled to perform intermittent driving, such as pressing the relevant control switch to make the shaking drive motor 61 drive the eccentric body 62 to rotate about one circle at a time. With this intermittent driving, the bottom of the iron ball 97 and the bottom of the evaporation crucible 93 are gradually separated from each other, and the operator can easily judge the adhesion and separation of the iron ball 97 and the evaporation crucible 93 in time, avoiding excessive shaking and causing the iron ball 97 to hit the side wall of the evaporation crucible 93. In this process, the auxiliary grasping effect of the auxiliary grasping teeth 51 and the multi-point connection formed by the strong bite of the middle self-tapping section 4 can avoid the occurrence of cracks and drilling between the self-tapping section 4 and the iron ball 97, ensuring that the present embodiment maintains a stable and reliable connection with the iron ball 97.

[0040] After the bottom of the iron mass 97 is no longer attached to the bottom of the evaporation crucible 93, the shaking generator 6 is stopped. The hoisting winch 23 is operated to hoist the hoisting chain 24, and the drill coupling shaft 3 can drive the iron mass 97 to be lifted, so that the iron mass 97 can be taken out. In the process of taking out, the cleaning and biting of the middle self-tapping section 4 and the auxiliary grasping effect of the auxiliary grasping teeth 51 are also used, so that the taking out is smooth and convenient, and the accident of iron falling is not likely to occur.

[0041] After taking it out, operate the walking trolley 22 to leave the top of the evaporating crucible 93 and reach other open space beside the kiln 9. Operate the lifting winch 23 to release the lifting chain 24 until the iron ball 97 touches the ground and stops. Operate the drill drive 31 to reverse, and the self-tapping section 4 begins to withdraw the iron ball 97 along the drilled channel. At the beginning of the withdrawal, based on the auxiliary grasping tube 5 and the drill shaft 3 being a set, the auxiliary grasping tube 5 does not move, and the drill shaft 3 gradually rises until the grasping tube support 32 is supported by the lower part of the auxiliary grasping tube 5 again, as shown in FIG. Figure 8As shown. At this time, there is still a certain length of spiral blade engagement between the self-tapping section 4 and the iron ball 97, so it can provide an upward push force, and this upward push force can drive the auxiliary grabbing teeth 51 to withdraw from the iron ball 97. Similarly, at this time, the friction generated between the grasping tube support 32 and the auxiliary grasping tube 5 can, together with the upward push force, generate a resultant force close to the spiral direction of the auxiliary grabbing teeth 51, which can further prompt the auxiliary grabbing teeth 51 to withdraw from the iron ball 97. During the withdrawal of the self-tapping section 4, the lifting winch 23 is operated to reel in a certain length of the lifting chain 24. The reeling operation ensures that the lifting chain 24 is basically kept without excessive excess length without pulling the lifting frame 1. After the self-tapping section 4 is completely withdrawn from the iron ball 97, as shown Fig. 9 As shown, the auxiliary gripping teeth 51 have also exited or substantially exited the iron mass 97, and at this time, the present embodiment is switched to a state where the lifting frame 1 and its upper components are immediately lifted by the lifting chain 24. The drilling driver 31 is stopped, and the lifting frame 1 is continuously lifted to complete the removal operation of one iron mass 97.

[0042] Based on the above structural principle, in the whole process of removing the iron ball 97, only the relevant drive needs to be operated, and only a small amount of initial drilling assistance action is manually generated, and low operating experience is required. After drilling, there is a multi-point connection and fixation with strong bite of the central self-tapping section 4 and grasping of the peripheral auxiliary grasping teeth 51. The iron ball 97 is fixed stably and reliably, and can be shaken smoothly, so that the bottom of the iron ball 97 and the bottom of the evaporating crucible 93 are separated from each other, and the lifting process is also smooth and convenient, which is conducive to improving the safety of iron removal and reducing the occurrence of pot damage. After it is proposed, by rotating the self-tapping section 4 in the opposite direction, the self-tapping section 4 can be automatically withdrawn from the iron ball 97 and the auxiliary grasping teeth 51 can be pulled out. The release of the connection and fixation between this embodiment and the iron ball 97 is also convenient. Based on the honeycomb structure characteristics of the iron ball 97, this embodiment proposes a connection and fixing method of drilling and piercing, so as to achieve stable removal of the iron ball 97, significantly reduce human participation, improve the mechanization degree of removing the iron ball 97, and help improve the efficiency of shutdown maintenance.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for removing iron balls from an evaporating crucible, comprising a lifting frame, wherein the lifting frame is connected to a lifting mechanism, and is characterized in that: A drill coupling shaft is rotatably mounted on the lifting frame, a self-tapping section is fixedly mounted on the lower end of the drill coupling shaft, and a drill coupling driver is mounted between the drill coupling shaft and the lifting frame; an auxiliary grasping tube is mounted on the drill coupling shaft on the upper side of the self-tapping section, and at least three circumferentially arranged auxiliary grasping teeth are fixedly mounted on the auxiliary grasping tube, and the auxiliary grasping teeth are used to penetrate into the iron ball; a grasping tube support platform located on the lower side of the auxiliary grasping tube and a grasping tube pressing platform located on the upper side of the auxiliary grasping tube are fixedly mounted on the drill coupling shaft, a drill grasping space is arranged between the grasping tube pressing platform and the auxiliary grasping tube, and the drill grasping space is used to enable the grasping tube pressing platform to press the auxiliary grasping tube after the self-tapping section drills into the iron ball.

2. The device for removing iron balls from an evaporating crucible according to claim 1, characterized in that: The piercing end of the auxiliary grasping tooth is higher than the bottom end of the self-tapping section.

3. The device for removing iron balls from an evaporating crucible according to claim 1, characterized in that: The auxiliary grasping teeth are arranged in a spiral shape around the drill coupling shaft.

4. The device for removing iron balls from an evaporating crucible according to claim 3, characterized in that: The spiral direction of the auxiliary grasping teeth is arranged to be the same as the spiral direction of the spiral blades on the self-tapping section.

5. The device for removing iron balls from an evaporating crucible according to claim 1, characterized in that: The self-tapping section includes a cylindrical section fixedly connected to the drill shaft, a conical section is fixedly provided at the lower end of the cylindrical section, and continuous self-tapping spiral blades are provided on the cylindrical section and the conical section; the heights of the self-tapping spiral blades at the cylindrical section are set equally, and the heights of the self-tapping spiral blades at the conical section are set to gradually decrease from top to bottom.

6. The device for removing iron balls from an evaporating crucible according to claim 1, characterized in that: The auxiliary grasping cylinder comprises two grasping half cylinders arranged opposite to each other, and assembling ear plates are fixedly provided at corresponding side edges of the two grasping half cylinders, and the corresponding assembling ear plates are fixedly connected by bolts.

7. The device for removing iron balls from an evaporating crucible according to claim 1, characterized in that: When the drill coupling driver drives the drill coupling shaft to rotate forward, the self-tapping section drills into the iron ball. When the drill coupling driver drives the drill coupling shaft to rotate reversely, the self-tapping section exits the iron ball.

8. The device for removing iron balls from an evaporating crucible according to claim 1, characterized in that: The lifting mechanism comprises a lifting guide rail arranged transversely, a traveling trolley is installed on the lifting guide rail, a lifting winch is fixedly installed on the traveling trolley, and the lifting frame is suspended on the lifting chain belt of the lifting winch.

9. The device for removing iron balls from an evaporating crucible according to any one of claims 1 to 8, characterized in that: A sway generator is installed on the lifting frame.

10. The device for removing iron balls from an evaporating crucible according to claim 9, characterized in that: The sway generator comprises a sway drive motor mounted on the lifting frame, and an eccentric body is fixedly mounted on the power end of the sway drive motor.

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