CN218523929U - Dumping furnace for producing white corundum by electric melting method - Google Patents

Abstract

The utility model relates to an electric melting method production white alundum is with empting stove, establish the furnace body on supporting the base including supporting the base and can toppling over, it is equipped with the pillar to rotate on the support base of furnace body one side, the pillar top is equipped with the roof, be equipped with first pneumatic cylinder and cooler bin on the roof, first pneumatic cylinder piston rod has linked firmly the bell down, the bell can cover and close on the furnace body top and vertical run through on it is equipped with the three-phase electrode, be equipped with the ring pipe on the bell top in the three-phase electrode outside, ring pipe bottom intercommunication has a plurality of exhaust pipes that run through the bell, be equipped with the semiconductor refrigeration piece in the tank wall of cooler bin, inside is equipped with the coiled pipe, the outer top is equipped with the purifying cylinder, the coiled pipe head and the tail both ends all stretch out the cooler bin and its head end pass through hose and ring pipe one side intercommunication, the tail end passes through the tobacco inlet pipe intercommunication on delivery pipeline and the purifying cylinder. The utility model discloses can carry out effective emission, cooling and filtration purification treatment, more practical to the smoke and dust that produces in the smelting process.

Description

Dumping furnace for producing white corundum by electric melting method

Technical Field

The utility model belongs to the technical field of white corundum production, concretely relates to electric melting method production white corundum is with empting stove.

Background

The white corundum as one kind of artificial abrasive is produced with industrial alumina powder as material and through smelting at over 2000 deg.c in electric arc and cooling, crushing, shaping, magnetic separation to eliminate iron, sieving to form various kinds of granularity, and is compact, hard and angular.

At present, the white corundum is produced by adopting an electric melting method on an electric arc furnace, and the common electric arc furnace can be divided into a fusion cake furnace, a pouring furnace and a flowing furnace according to the structure of a furnace body. When the pouring furnace is adopted for smelting, raw materials are generally fed into a furnace body, the furnace cover is covered, the three-phase electrode is inserted into the furnace cover for heating and smelting, and after the heating and smelting are completed, the furnace cover is opened and the furnace body is poured, so that a solution obtained after smelting is discharged into equipment such as a ladle and the like. In the smelting process, the whole pouring furnace can be effectively insulated under the sealing action of the furnace cover. Meanwhile, smoke dust generated during smelting is blocked in the upper part of the furnace body, and a conventional dumping furnace is lack of an effective smoke dust guiding, discharging and purifying treatment device, so that when the cover is opened and the material is unloaded during smelting, the smoke dust accumulated in the upper part of the furnace body can be intensively flown out and scattered everywhere, so that surrounding smoke gas is diffused, the surrounding environment is polluted, the surrounding normal production operation is influenced, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an electric melting method production white alundum is with empting stove can carry out effective guide emission, cooling and multiple filtration purification treatment to the smoke and dust that produces in the melting process to solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a dumping furnace for producing white corundum by an electric melting method comprises a supporting base and a furnace body which can be dumped on the supporting base, wherein a first motor is arranged on the supporting base on one side of the furnace body, an output shaft of the first motor faces upwards and is coaxially and fixedly connected with a supporting column, a top plate is horizontally arranged at the top end of the supporting column towards the side where the furnace body is located, a first hydraulic cylinder and a cooling box are arranged on the top plate, the first hydraulic cylinder vertically penetrates through the top plate, a piston rod of the first hydraulic cylinder faces downwards and is fixedly connected with a furnace cover, the furnace cover can cover the top of the furnace body, a three-phase electrode vertically penetrates through the furnace cover, a ring pipe is arranged on the top of the furnace cover outside the three-phase electrode, the bottom of the ring pipe is communicated with a plurality of smoke exhaust pipes penetrating through the furnace cover, a semiconductor sheet is arranged in the box wall of the cooling box, a coiled pipe is arranged in the cooling box along the left and right directions, and a purification cylinder is arranged on the outer top of the cooling box, the purification device is characterized in that the center of one end of the purification cylinder is communicated with a smoke inlet pipe, a first guide pipe is coaxially and fixedly arranged in the end, a second guide pipe is coaxially and fixedly arranged in the end, a part of the end, which is positioned on the outer peripheral side of the second guide pipe, is communicated with a plurality of smoke outlet pipes, the head end and the tail end of the coiled pipe extend out of the cooling box, the head end of the coiled pipe is communicated with one side of the annular pipe through a hose, the tail end of the coiled pipe is communicated with the smoke inlet pipe through a delivery pipeline, a plurality of primary filter screens are fixedly arranged in the first guide pipe along the axial direction of the first guide pipe, a gap is reserved between the tail end of the coiled pipe and the opposite end wall of the purification cylinder, the second guide pipe is sleeved outside the first guide pipe, a plurality of annular middle-effect filter screens are fixedly arranged in the axial direction of the second guide pipe along the fixed sleeve, a plurality of annular high-effect filter screens are fixedly arranged in the outer side of the second guide pipe along the axial direction of the fixed sleeve, the inner ring of the middle-effect filter screens is fixedly sleeved on the outer side of the first guide pipe, the outer lane of high-efficient filter screen and the fixed cup joint of a purification section of thick bamboo inner wall, between two adjacent just imitate filter screens, between two adjacent medium efficiency filter screens and all pack between two adjacent high-efficient filter screens has active carbon, the tail end intercommunication of going out the tobacco pipe has same hollow smoking board, one side that the purification section of thick bamboo was kept away from to the smoking board communicates with the suction opening of an air exhauster.

Preferably, the external diameter of primary filter screen and the internal diameter looks adaptation of first pipe, the internal diameter looks adaptation of the internal diameter of well effect filter screen and the external diameter looks adaptation of first pipe, external diameter and the internal diameter looks adaptation of second pipe, the internal diameter looks adaptation of the external diameter looks adaptation of high-efficient filter screen and second pipe, external diameter and the internal diameter looks adaptation of purifying cartridge.

Preferably, the furnace cover consists of an upper cover plate and a lower plunger, the diameter of the cover plate is larger than the outer diameter of the furnace body and can be abutted against the top end of the furnace body, and the diameter of the plunger is matched with the inner diameter of the furnace body and can be sleeved in the top of the furnace body.

Preferably, a furnace nozzle is arranged at the front end of the top of the furnace body, and the length of the furnace nozzle in the vertical direction is smaller than that of the plunger in the vertical direction.

Preferably, the support base of the left side and the right side of the furnace body is vertically provided with a support, the upper parts of the two supports horizontally penetrate along the left-right direction and are rotatably provided with rotating shafts, one ends of the two rotating shafts, which are close to the furnace body, are fixedly connected with the furnace body, a support plate is fixedly arranged on the outer side of the support, a second motor and a speed reducer are arranged on the support plate, the output shaft of the second motor is fixedly connected with the speed reducer in a coaxial manner, and the output shaft of the speed reducer is fixedly connected with the rotating shafts on the same support in a coaxial manner.

Preferably, a second hydraulic cylinder is vertically arranged on the supporting base below the furnace body, a piston rod of the second hydraulic cylinder faces upwards and is fixedly connected with a limiting support plate, a groove matched with the limiting support plate is formed in the outer bottom of the furnace body corresponding to the limiting support plate, and the limiting support plate can be embedded into the groove.

Preferably, the support base is made of foamed aluminum.

Preferably, the edge of the support base is fixed on the ground by a plurality of chemical bolts.

The utility model has the advantages that: the utility model relates to a rationally, simple structure, under the initial condition, the bell is located the one side of keeping away from the furnace body to do not influence the material loading. During smelting operation, raw materials to be smelted are fed into the furnace body from the top of the furnace body. Then, the first motor is operated to drive the support to rotate 180 degrees, and the furnace cover can be rotated to the upper part of the furnace body. Then, the first hydraulic cylinder is operated to extend the piston rod of the first hydraulic cylinder, so that the furnace cover can be driven to move downwards until the furnace cover is covered on the top of the furnace body, and the three-phase electrode of the furnace cover can be inserted into the furnace body at the moment. And then, a circuit of the three-phase electrode is switched on, so that the materials in the furnace body can be heated and smelted by an electric smelting method. During smelting, the semiconductor refrigerating sheet and the exhaust fan are operated, and the generated smoke dust is discharged from the furnace body into the annular pipe through the plurality of smoke discharge pipes and then enters the coiled pipe in the cooling box through the hose under the driving of the exhaust fan. The coiled pipe can effectively prolong the detention time of the smoke dust in the cooling box, thereby realizing effective semiconductor refrigeration and temperature reduction treatment of the smoke dust. Then, under the cooperation of conveying pipeline and advancing the tobacco pipe, the smoke and dust after being cooled down can be advanced and is gone into the first pipe in the purifying cylinder to flow towards the tobacco pipe place, in-process, under the setting cooperation of a plurality of primary filter screens and the active carbon between two adjacent primary filter screens, can realize the many times primary filtration and the absorption purification of smoke and dust. Then, the smoke dust can enter the area between the second guide pipe and the first guide pipe and reversely flow towards the direction of the smoke inlet pipe, and in the process, under the arrangement and the matching of the plurality of medium-effect filter screens and the activated carbon between the two adjacent medium-effect filter screens, the smoke dust can be subjected to multiple medium-level filtering treatment and multiple adsorption purification treatment again. Then, the smoke dust can enter the area between the purifying cylinder and the second guide pipe and flow in the direction of the smoke outlet pipe in the reverse direction again, and in the process, under the arrangement and the matching of the plurality of high-efficiency filter screens and the activated carbon between the two adjacent high-efficiency filter screens, the smoke dust can be further subjected to multiple advanced filtering treatment and multiple adsorption and purification treatment. And finally, the purified tail gas can be discharged from the purification cylinder into the hollow smoke exhaust plate through a plurality of smoke outlet pipes, and is discharged to the external environment from an air outlet of the exhaust fan under the pumping of the exhaust fan. Therefore, the smoke dust generated in the smelting process can be effectively guided to be discharged, cooled and purified by multiple filtration, the defect that the original smoke dust is accumulated in the furnace body and then overflows in a centralized mode when the smoke dust is discharged is avoided, the temperature and the cleanliness of the smoke dust finally discharged to the outside can be guaranteed, and therefore pollution to the surrounding environment and adverse effects on surrounding normal production work can be greatly reduced, and the method is more practical.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic front view of the top plate and the upper device thereof;

fig. 3 is a schematic front view of the furnace lid of the present invention;

fig. 4 is a schematic top view of the furnace lid of the present invention;

FIG. 5 is a schematic structural view of a front cross section of the cooling box of the present invention;

fig. 6 is a schematic view of the cross-sectional structure of the purifying cartridge according to the present invention.

Reference numbers in the figures: the device comprises a supporting base 1, a furnace body 2, a first motor 3, a supporting column 4, a top plate 5, a first hydraulic cylinder 6, a furnace cover 7, a cover plate 701, a plunger 702, a three-phase electrode 8, a ring pipe 9, a smoke exhaust pipe 10, a hose 11, a cooling box 12, a semiconductor refrigerating sheet 13, a coiled pipe 14, a conveying pipeline 15, a purifying cylinder 16, a smoke inlet pipe 17, a first guide pipe 18, a primary filter screen 19, a second guide pipe 20, a medium-efficiency filter screen 21, a high-efficiency filter screen 22, activated carbon 23, a smoke outlet pipe 24, a smoke exhaust plate 25, a smoke exhaust fan 26, a furnace nozzle 27, a support 28, a rotating shaft 29, a supporting plate 30, a second motor 31, a speed reducer 32, a second hydraulic cylinder 33, a limiting support plate 34, a groove 35 and a chemical bolt 36.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 6, a pouring furnace for producing white corundum by electric melting method comprises a supporting base 1 and a furnace body 2 which can be poured on the supporting base. Be equipped with first motor 3 on the support base 1 of furnace body 2 one side, the output shaft of first motor 3 up and coaxial fixedly connected with pillar 4, the top of pillar 4 is equipped with roof 5 towards furnace body 2 place side level, is equipped with first pneumatic cylinder 6 and cooler bin 12 on roof 5. First pneumatic cylinder 6 vertically runs through roof 5 and its piston rod down and fixedly connected with bell 7, and bell 7 can cover and close on the top of furnace body 2 and vertically run through on it and be equipped with three-phase electrode 8, is equipped with annular pipe 9 on the top of the bell 7 in the three-phase electrode 8 outside, and the bottom intercommunication of annular pipe 9 has a plurality of exhaust pipes 10 that run through bell 7. The wall of the cooling box 12 is provided with semiconductor refrigerating sheets 13, the cooling box 12 is provided with a coil pipe 14 along the left and right direction and the outer top thereof is provided with a purifying cylinder 16. The center of one end of the purifying cylinder 16 is communicated with a smoke inlet pipe 17, a first conduit 18 is coaxially and fixedly arranged in the end, a second conduit 20 is coaxially and fixedly arranged in the other end, and a plurality of smoke outlet pipes 24 are communicated with the part of the end which is positioned at the outer peripheral side of the second conduit 20. The head end and the tail end of the coiled pipe 14 extend out of the cooling box 12, the head end of the coiled pipe is communicated with one side of the annular pipe 9 through a hose 11, and the tail end of the coiled pipe is communicated with a smoke inlet pipe 17 through a conveying pipeline 15. A plurality of primary filter screens 19 are fixedly arranged in the first conduit 18 at intervals along the axial direction, and gaps are reserved between the tail ends of the primary filter screens and the end walls of the opposite purification cylinders 16. The second pipe 20 is sleeved on the outer side of the first pipe 18, a gap is left between the tail end of the second pipe 20 and the end wall of the opposite purification cylinder 16, the inner side of the second pipe 20 is provided with a plurality of annular middle-effect filter screens 21 along the axial interval fixing sleeve, the outer side is provided with a plurality of annular high-efficiency filter screens 22 along the axial interval fixing sleeve, the inner ring of the middle-effect filter screens 21 is fixedly sleeved on the outer side of the first pipe 18, the outer rings of the high-efficiency filter screens 22 are fixedly sleeved with the inner wall of the purification cylinder 16, and activated carbon 23 is filled between two adjacent primary-effect filter screens 19, between two adjacent middle-effect filter screens 21 and between two adjacent high-efficiency filter screens 22. The tail end of the smoke outlet pipe 24 is communicated with a hollow smoke exhaust plate 25, and one side of the smoke exhaust plate 25, which is far away from the purification cylinder 16, is communicated with a suction opening of an exhaust fan 26;

in the initial state, the furnace cover 7 is positioned at one side far away from the furnace body 2 so as not to influence the feeding. In the smelting operation, raw materials to be smelted are fed into the furnace body 2 from the top of the furnace body 2. Then, the first motor 3 is operated to drive the support 4 to rotate 180 degrees, and the furnace cover 7 can be rotated to the upper part of the furnace body 2. Then, the first hydraulic cylinder 6 is operated to extend the piston rod thereof, so as to drive the furnace cover 7 to move downwards until the furnace cover is covered on the top of the furnace body 2, and at the moment, the three-phase electrode 8 of the furnace cover 7 can be inserted into the furnace body 2. Then, the circuit of the three-phase electrode 8 is connected, and the materials in the furnace body 2 can be heated and smelted by the electric smelting method. The three-phase electrode 8 can be manufactured by adopting the prior art, and is electrically connected with an external power supply to be matched with production and processing when in actual use;

during the smelting process, the semiconductor refrigerating sheet 13 and the exhaust fan 26 are operated, and the generated smoke dust can be discharged from the furnace body 2 into the annular pipe 9 through the plurality of smoke discharge pipes 10 under the driving of the exhaust fan 26 and then enter the coiled pipe 14 in the cooling box 12 through the hose 11. The serpentine pipe 14 can effectively prolong the residence time of the smoke dust in the cooling box 12, thereby realizing effective semiconductor refrigeration and temperature reduction treatment of the smoke dust. Then, under the cooperation of the delivery pipeline 15 and the smoke inlet pipe 17, the smoke after temperature reduction treatment can enter the first conduit 18 in the purifying cylinder 16 and flow towards the smoke outlet pipe 24, and in the process, under the cooperation of the arrangement of the plurality of primary filter screens 19 and the activated carbon 23 between two adjacent primary filter screens 19, the smoke can be subjected to multiple primary filter treatments and multiple adsorption purification treatments. Then, the smoke dust can enter the area between the second duct 20 and the first duct 18 and reversely flow towards the smoke inlet pipe 17, and in the process, under the arrangement and cooperation of the plurality of medium-effect filter screens 21 and the activated carbon 23 between two adjacent medium-effect filter screens 21, the smoke dust can be subjected to multiple medium-level filtering treatments and multiple adsorption purification treatments again. Then, the smoke dust can enter the area between the purifying cylinder 16 and the second conduit 20, and flow back to the smoke outlet pipe 24 again, in the process, under the arrangement and cooperation of the plurality of high-efficiency filter screens 22 and the activated carbon 23 between two adjacent high-efficiency filter screens 22, multiple advanced filtering treatments and multiple adsorption purification treatments of the smoke dust can be further realized. Finally, the cleaned exhaust gas can be discharged from the cleaning cylinder 16 through a plurality of exhaust pipes 24 into a hollow exhaust panel 25, and then discharged from an exhaust outlet of the exhaust fan 26 to the external environment under the suction of the exhaust fan 26. Therefore, the smoke and dust generated in the smelting process can be effectively guided to be discharged, cooled and subjected to multiple filtration and purification treatment, the defect that the original smoke and dust is accumulated in the furnace body 2 and overflows in a centralized manner when being unloaded is avoided, the temperature and the cleanliness of the smoke and dust finally discharged to the outside can be ensured, the pollution to the surrounding environment and the adverse effect on the surrounding normal production work can be greatly reduced, and the method is more practical. The semiconductor refrigerating sheet 13, the primary filter screen 19, the intermediate filter screen 21, the high-efficiency filter screen 22 and the exhaust fan 26 are all made by adopting the prior art.

In this embodiment, the outer diameter of the primary filter screen 19 is adapted to the inner diameter of the first conduit 18, the inner diameter of the intermediate filter screen 21 is adapted to the outer diameter of the first conduit 18, and the outer diameter is adapted to the inner diameter of the second conduit 20, and the inner diameter of the high-efficiency filter screen 22 is adapted to the outer diameter of the second conduit 20, and the outer diameter is adapted to the inner diameter of the purification cartridge 16, so that the corresponding filter screens can be stably connected to the corresponding conduits and the purification cartridge 16.

In this embodiment, the furnace cover 7 is composed of an upper cover plate 701 and a lower plunger 702, the diameter of the cover plate 701 is larger than the outer diameter of the furnace body 2 and can be abutted to the top end of the furnace body 2, the diameter of the plunger 702 is matched with the inner diameter of the furnace body 2 and can be sleeved in the top of the furnace body 2, so that when the furnace body 2 is plugged by the furnace cover 7, the plunger 702 can be inserted into the furnace body 2, and then the cover plate 701 is used for limiting and plugging, thereby the overall sealing and heat-preserving effect of the furnace cover 7 can be further ensured.

In this embodiment, the front end of the top of the furnace body 2 is provided with a furnace nozzle 27, so that when the furnace body 2 is poured after the smelting is completed, the solution obtained by smelting can better flow out of the furnace body 2 to the receiving bag through the furnace nozzle 27. The length of the furnace nozzle 27 in the vertical direction is smaller than that of the plunger 702 in the vertical direction, so as to ensure the sealing effect of the furnace cover 7 on the furnace body 2.

In this embodiment, the support base 1 of the furnace body 2 left and right sides is last all vertically to be equipped with the support 28, and the upper portion of two supports 28 all runs through and rotates along left and right sides direction level and is equipped with pivot 29, and the one end that two pivot 29 are close to furnace body 2 all with furnace body 2 fixed connection. A supporting plate 30 is fixedly arranged on the outer side of one support 28, a second motor 31 and a speed reducer 32 are arranged on the supporting plate 30, an output shaft of the second motor 31 is coaxially and fixedly connected with the speed reducer 32, and an output shaft of the speed reducer 32 is coaxially and fixedly connected with a rotating shaft 29 on the same support 28, so that after smelting is completed, the first hydraulic cylinder 6 can be operated firstly, a piston rod of the first hydraulic cylinder is contracted, and the furnace cover 7 and the three-phase electrode 8 on the furnace cover can be driven to move out of the furnace body 2. Then, the first motor 3 is operated to drive the support column 4 to integrally rotate 180 degrees, so that the furnace cover 7 can be rotated to one side far away from the furnace body 2, the subsequent dumping and discharging of the furnace body 2 are not affected, and the overhauling and cleaning maintenance of the furnace cover 7 and the three-phase electrode 8 are more convenient. Then, the second motor 31 is operated, and the entire furnace body 2 can be driven to slowly rotate and dump towards the front side under the matching of the speed reducer 32 and the rotating shaft 29, so that the melted solution in the furnace body 2 can be discharged into equipment such as a ladle through the furnace mouth 27. The first motor 3, the second motor 31 and the speed reducer 32 can all adopt the prior art, and the first motor 3 and the second motor 31 can adopt the existing conventional stepping motors so as to better cooperate with the corresponding operation.

In this embodiment, the vertical second hydraulic cylinder 33 that is equipped with on the support base 1 of furnace body 2 below, the piston rod of second hydraulic cylinder 33 up and the spacing extension board 34 of fixedly connected with, set up the recess 35 with this spacing extension board 34 looks adaptation on the outer bottom of furnace body 2 that spacing extension board 34 corresponds, spacing extension board 34 can be inlayed in the recess 35, make when smelting the operation second hydraulic cylinder 33 of operation, make its piston rod extension, can promote spacing extension board 34 and move up to in its embedding recess 35, thereby can further play effectual support and limiting displacement to whole furnace body 2, guarantee the stability of furnace body 2, more be favorable to smelting the steady of operation and going on. After the smelting is finished, the second hydraulic cylinder 33 is operated again to enable the piston rod of the second hydraulic cylinder to contract, the limiting support plate 34 can be driven to move downwards to reset, and the dumping and discharging of the furnace body 2 are not affected.

In this embodiment, the supporting base 1 is made of foamed aluminum, which is an existing material, has the performance characteristics of high damping, energy absorption, corrosion resistance, high temperature resistance and the like, and can play a good role in buffering, damping and protecting the whole tilting furnace, thereby ensuring the working stability during the production of white corundum by an electric melting method and being more beneficial to improving the production quality.

In this embodiment, the limit portion of supporting base 1 is fixed subaerial through a plurality of chemical bolts 36, chemical bolt 36 is prior art, with its fixed stay base 1, can further strengthen the spacing steadiness of whole equipment greatly, especially chemical bolt 36 has advantages such as anchor power is strong, no expansion stress, the installation is swift, the engineering time is short, and it still has good acid and alkali-resistance, low temperature resistant, ageing-resistant, heat-resisting, water stain-fast fire-retardant, antidetonation performance, more can guarantee fixed long-term stability and validity to whole tilt furnace equipment, improve the stationarity and the quality of smelting operation.

The utility model discloses a theory of operation: in the initial state, the furnace cover 7 is positioned at one side far away from the furnace body 2 so as not to influence the feeding. In the smelting operation, raw materials to be smelted are fed into the furnace body 2 from the top of the furnace body 2. Then, the first motor 3 is operated to drive the support 4 to rotate 180 degrees, so that the furnace cover 7 can be rotated to the upper part of the furnace body 2. Then, the first hydraulic cylinder 6 is operated to extend the piston rod thereof, so as to drive the furnace cover 7 to move downwards until the furnace cover is covered on the top of the furnace body 2, and at the moment, the three-phase electrode 8 of the furnace cover 7 can be inserted into the furnace body 2. Then, the circuit of the three-phase electrode 8 is connected, and the materials in the furnace body 2 can be heated and smelted by the electric smelting method. During the smelting process, the semiconductor refrigerating sheet 13 and the exhaust fan 26 are operated, and the generated smoke dust can be discharged from the furnace body 2 into the annular pipe 9 through the plurality of smoke discharge pipes 10 under the driving of the exhaust fan 26 and then enters the coiled pipe 14 in the cooling box 12 through the hose 11. The serpentine pipe 14 can effectively prolong the residence time of the smoke dust in the cooling box 12, thereby realizing the effective semiconductor refrigeration and temperature reduction treatment of the smoke dust. Then, under the cooperation of the delivery pipeline 15 and the smoke inlet pipe 17, the smoke after temperature reduction treatment can enter the first conduit 18 in the purifying cylinder 16 and flow towards the smoke outlet pipe 24, and in the process, under the cooperation of the arrangement of the plurality of primary filter screens 19 and the activated carbon 23 between two adjacent primary filter screens 19, the smoke can be subjected to multiple primary filter treatments and multiple adsorption purification treatments. Then, the smoke dust can enter the area between the second duct 20 and the first duct 18 and reversely flow towards the smoke inlet pipe 17, and in the process, under the arrangement and cooperation of the plurality of medium-effect filter screens 21 and the activated carbon 23 between two adjacent medium-effect filter screens 21, the smoke dust can be subjected to multiple medium-level filtering treatments and multiple adsorption purification treatments again. Then, the smoke can enter the area between the purifying cylinder 16 and the second conduit 20 and flow back to the smoke outlet pipe 24 again, in the process, by the arrangement of the plurality of high-efficiency filter screens 22 and the activated carbon 23 between two adjacent high-efficiency filter screens 22, multiple advanced filtering treatments and multiple adsorption purification treatments of the smoke can be further realized. Finally, the cleaned exhaust gas can be discharged from the cleaning cylinder 16 through a plurality of exhaust pipes 24 into a hollow exhaust panel 25, and then discharged from an exhaust outlet of the exhaust fan 26 to the external environment under the suction of the exhaust fan 26. Therefore, the smoke and dust generated in the smelting process can be effectively guided to be discharged, cooled and subjected to multiple filtration and purification treatment, the defect that the original smoke and dust is accumulated in the furnace body 2 and overflows in a centralized manner when being unloaded is avoided, the temperature and the cleanliness of the smoke and dust finally discharged to the outside can be ensured, the pollution to the surrounding environment and the adverse effect on the surrounding normal production work can be greatly reduced, and the method is more practical.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an electric melting method production white alundum is with empting stove, includes the support base and can empty the furnace body of establishing above that, its characterized in that, be equipped with first motor on the support base of furnace body one side, the output shaft of first motor up and coaxial fixedly connected with pillar, the top of pillar is equipped with the roof towards furnace body place side level, be equipped with first pneumatic cylinder and cooler bin on the roof, first pneumatic cylinder vertically runs through the roof and its piston rod down and fixedly connected with bell, the bell can be closed on the top of furnace body and vertical run through on it is equipped with the three-phase electrode, be equipped with the annular tube on the bell top in the three-phase electrode outside, the bottom intercommunication of annular tube has a plurality of pipes of discharging fume that run through the bell, all be equipped with the semiconductor refrigeration piece in the tank wall of cooler bin, be equipped with the coiled pipe along left and right directions in the cooler bin and be equipped with the purification section of thick bamboo on its top, the center of one end of the purification cylinder is communicated with a smoke inlet pipe, a first guide pipe is coaxially and fixedly arranged in the end, a second guide pipe is coaxially and fixedly arranged in the other end, the part of the end, which is positioned at the periphery side of the second guide pipe, is communicated with a plurality of smoke outlet pipes, the head end and the tail end of the coiled pipe extend out of the cooling box, the head end of the coiled pipe is communicated with one side of the annular pipe through a hose, the tail end of the coiled pipe is communicated with the smoke inlet pipe through a delivery pipeline, a plurality of primary filter screens are fixedly arranged in the first guide pipe along the axial direction at intervals, gaps are reserved between the tail end of the coiled pipe and the end wall of the opposite purification cylinder, the second guide pipe is sleeved outside the first guide pipe, gaps are reserved between the tail end of the second guide pipe and the end wall of the opposite purification cylinder, the inner side of the second guide pipe is fixedly sleeved with a plurality of annular intermediate filter screens along the axial direction at intervals, and a plurality of annular high-efficiency filter screens are fixedly sleeved outside along the axial direction, the inner circle fixed sleeve of the medium efficiency filter screen is arranged on the outer side of the first guide pipe, the outer circle of the high efficiency filter screen is fixedly sleeved with the inner wall of the purifying cylinder, activated carbon is filled between two adjacent primary efficiency filter screens, between two adjacent medium efficiency filter screens and between two adjacent high efficiency filter screens, the tail end of the smoke outlet pipe is communicated with a hollow smoke exhaust plate, and one side of the purifying cylinder and the suction opening of an exhaust fan are communicated with the smoke exhaust plate.

2. The dumping furnace for producing white corundum by electric melting method according to claim 1, wherein the outer diameter of the primary filter screen is matched with the inner diameter of the first conduit, the inner diameter of the intermediate filter screen is matched with the outer diameter of the first conduit, the outer diameter of the intermediate filter screen is matched with the inner diameter of the second conduit, and the inner diameter of the high-efficiency filter screen is matched with the outer diameter of the second conduit and the outer diameter of the high-efficiency filter screen is matched with the inner diameter of the purifying cylinder.

3. The pouring furnace for producing white corundum by electric melting method according to claim 1, characterized in that the furnace cover consists of an upper cover plate and a lower plunger, the diameter of the cover plate is larger than the outer diameter of the furnace body and can be abutted against the top end of the furnace body, and the diameter of the plunger is matched with the inner diameter of the furnace body and can be sleeved in the top of the furnace body.

4. The pouring furnace for producing white corundum by electric melting method according to claim 3, characterized in that the front end of the top of the furnace body is provided with a furnace nozzle, and the length of the furnace nozzle in the vertical direction is smaller than that of the plunger in the vertical direction.

5. The pouring furnace for producing white corundum by electric melting method according to claim 1, characterized in that supporting bases at the left side and the right side of the furnace body are vertically provided with supporting seats, the upper parts of the two supporting seats are horizontally penetrated and rotatably provided with rotating shafts along the left-right direction, one ends of the two rotating shafts close to the furnace body are fixedly connected with the furnace body, a supporting plate is fixedly arranged on the outer side of the supporting seat, a second motor and a speed reducer are arranged on the supporting plate, the output shaft of the second motor is coaxially and fixedly connected with the speed reducer, and the output shaft of the speed reducer is coaxially and fixedly connected with the rotating shaft on the same supporting seat.

6. The pouring furnace for producing white corundum by electric melting method according to claim 1, characterized in that a second hydraulic cylinder is vertically arranged on the supporting base below the furnace body, a piston rod of the second hydraulic cylinder faces upwards and is fixedly connected with a limiting support plate, a groove matched with the limiting support plate is arranged on the bottom of the furnace body corresponding to the limiting support plate, and the limiting support plate can be embedded into the groove.

7. The pouring furnace for producing white corundum according to the electric melting method of claim 1, wherein the supporting base is made of foamed aluminum.

8. The tilting furnace for producing white corundum by electrofusion according to claim 1, characterised in that the edge of the supporting base is fixed to the ground by means of chemical bolts.

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