CN111043865B

CN111043865B - Electrode feeding device for electric melting furnace production

Info

Publication number: CN111043865B
Application number: CN201911344080.1A
Authority: CN
Inventors: 唐宇; 刘春�; 鲁欣科; 钱亦鸣
Original assignee: Sinoma Science and Technology Co Ltd; Nanjing Fiberglass Research and Design Institute Co Ltd
Current assignee: Sinoma Science and Technology Co Ltd; Nanjing Fiberglass Research and Design Institute Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2022-09-02
Anticipated expiration: 2039-12-24
Also published as: CN111043865A

Abstract

The invention discloses an electrode feeding device for production of an electric melting furnace, which comprises an electrode lower clamp and an electrode upper clamp, wherein the electrode lower clamp is arranged on a fixture and is used for clamping an electrode from the lower end of the electrode to prevent the electrode from sliding downwards under the action of gravity, the electrode upper clamp is connected with a lifting driving device arranged on the fixture and is used for clamping the upper part of the electrode, and the electrode upper clamp clamps the upper part of the electrode and is driven by the lifting driving device to overcome the resistance of the electrode lower clamp to move downwards for feeding the electrode with the lower end extending into the electric melting furnace. The beneficial effects of the invention are: the electrode can be pushed into the electric melting furnace after the electrode is worn, so that the feeding of the electrode is realized, a new electrode can be connected to the top end of the electrode after the electrode is worn, the electrode does not need to be replaced, the electrode is prevented from being replaced, the working efficiency of the electric melting furnace is reduced, the electrode in the electric melting furnace can be completely used for heating the electric melting furnace, the electrode waste is avoided, and the melting cost of glass fiber products is reduced.

Description

Electrode feeding device for electric melting furnace production

Technical Field

The invention relates to an electrode feeding device for electric melting furnace production, and belongs to the field of glass fiber product melting equipment.

Background

The production of rock wool by the traditional cupola process requires coke to provide a heat source for the cupola, and the cupola tail gas contains sulfur, which is harmful to the environment. Along with the improvement of the national requirement on environmental protection, the method for manufacturing rock mineral wool by using an electric melting furnace is advocated all over the country in recent years, the heat supply source of the electric melting furnace is electricity, and only a small amount of sulfur-free waste gas is generated during operation, so that the method is favorable for the environment. However, the popularity of using the electric melting furnace method to manufacture rock mineral wool is low in China, and the control of the electric melting furnace electrode is always a technical difficulty.

The electric melting furnace uses graphite electrode as conductor, and the heat is generated after the conductor is electrified and arcing, so that the raw material is melted. The graphite electrode is worn to a certain extent in the process of generating heat by electrifying the graphite electrode, so that the length of the electrode inserted into the melting furnace is shortened, and the melting of raw materials in the whole melting furnace is influenced.

For example, accessory 1 discloses a large-diameter cylindrical graphite electrode giant electric furnace, which adopts electrodes to supply power and heat to the furnace, the graphite electrodes need to be replaced after being consumed, and in order to avoid that the temperature in the furnace body can not be reduced when the electrodes are replaced, a plurality of graphite electrodes are arranged in the furnace, the top of the graphite electrode in accessory 1 is fixed by a circular arc-shaped hoop, so that the graphite electrode can only be directly replaced after being consumed but can not be connected with a new graphite electrode, it is known that the replacement of the electrode loss can cause the waste of partial replaced electrodes and the use of the electrodes, the economy is poor, the accessory 1 is not provided with an electrode feeding device, even if the electrodes are positioned outside a furnace chamber and have enough length, the remaining graphite electrodes can not be extended into the furnace chamber, at least, the remaining graphite electrodes can not be extended into the furnace chamber under the condition that no worker approaches to operate, causing waste of graphite electrode usage.

Attachment 1: the publication number is CN 101251334A.

Disclosure of Invention

The invention aims to provide an electrode feeding device for production of an electric melting furnace, which solves the technical defect that electrode loss is difficult to feed when the electric melting furnace is used in the prior art.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the electrode feeding device for the production of the electric melting furnace comprises an electrode lower clamp and an electrode upper clamp, wherein the electrode lower clamp is arranged on a fixture and used for clamping an electrode from the lower end of the electrode to prevent the electrode from sliding downwards under the action of gravity, the electrode upper clamp is connected with a lifting driving device arranged on the fixture and used for clamping the upper part of the electrode, and the electrode upper clamp clamps the upper part of the electrode and is driven by the lifting driving device to overcome the resistance of the electrode lower clamp to move downwards for feeding the electrode with the lower end extending into the electric melting furnace. The electrode lower clamp in the application can ensure that the electrode feeding process cannot fall freely due to the self weight of the electrode because the electrode is clamped all the time, the phenomenon that the electrode feeding amount is too large is avoided, the electrode is clamped by the electrode upper clamp, the electrode can be driven by the lifting driving device to move downwards, the electrode clamped by the electrode is pushed downwards, and the feeding of the electrode is realized.

As a further improvement of the invention, the electrode upper clamp comprises an upper clamp box body, two upper driving devices and two upper clamp bodies, wherein the upper clamp box body is connected with the lifting driving device, the two upper clamp bodies are both arranged on the upper clamp box body and form a horizontal moving pair with the upper clamp body, the two upper driving devices are arranged at two ends of the upper clamp box body and are respectively used for driving the two upper clamp bodies to move on the upper clamp box body, upper grooves matched with the electrodes are respectively formed in opposite sides of the two upper clamp bodies, the two upper driving devices drive the upper clamp bodies to move oppositely for clamping the electrodes, and the two upper driving devices drive the two upper clamp bodies to move away from each other for loosening the electrodes. This application is used for pressing from both sides tight electrode towards the direction removal that is close to each other or keeps away from each other simultaneously through two last drive arrangement drives two last anchor clamps bodies, because seted up the upper groove on the last anchor clamps body, it cooperatees with the electrode, damages the electrode to the electrode when avoiding going up anchor clamps body centre gripping electrode, the removal of anchor clamps also can be realized when the workman is not close to the electric furnace in this application to last drive arrangement, further improvement this application is used for the security that the electrode fed.

As a further improvement of the invention, the electrode upper part clamp further comprises an upper disc spring group, a plurality of guide rods and an upper end cover, the upper driving device is an upper oil cylinder, the guide rods penetrate through the upper clamp box body and can move relative to the upper clamp box body, two ends of each guide rod are respectively connected with the upper clamp body and the upper end cover, the upper oil cylinder is positioned between the upper end cover and the upper clamp box body, the upper disc spring group is positioned between the upper clamp body and the upper clamp box body and is in a compressed state, a piston rod of the upper oil cylinder extends to push the upper end cover to move towards a direction far away from the upper clamp box body, the upper end cover pulls the upper clamp body through the guide rods to separate the upper clamp body from the electrode, the upper clamp body further compresses the upper disc spring group, the piston rod of the upper oil cylinder contracts, and the upper disc spring group pushes the upper clamp body and the upper end cover to move towards the electrode and clamp the electrode. This application sets up the last dish spring group that is in compression state, make electrode upper portion anchor clamps press from both sides tight electrode under normal condition, when going up the anchor clamps body and keeping away from the electrode, because go up dish spring group by further compression, it stores more energy, when last hydro-cylinder piston rod contracts, only rely on the energy that last dish spring group itself stored to promote the direction of going up the anchor clamps body towards the electrode, do not need extra power that promotes the removal of anchor clamps body, this application is owing to go up the hydro-cylinder setting in last anchor clamps box outside, the space in the last anchor clamps box has been increased, the installation of dish spring group is gone up in the also being convenient for.

As a further improvement of the invention, the electrode upper clamp further comprises an upper locking nut, a pressing plate, a supporting shaft and a sleeve, wherein the supporting shaft comprises a connecting section, a baffle and a supporting section, the connecting section is provided with external threads, the upper locking nut is in threaded fit with the connecting section, the connecting section and the supporting section are respectively fixed on two sides of the baffle and are coaxially arranged with the supporting section, a connecting hole penetrating through the upper clamp body is formed in the upper clamp body, a positioning hole coaxial with the connecting hole is formed in the upper clamp body, one end, far away from the baffle, of the connecting section extends into the connecting hole and can move in the connecting hole, an upper disc spring group is sleeved on the sleeve, one end of the sleeve extends into the positioning hole, the pressing plate is arranged at one end, far away from the upper clamp body, of the sleeve penetrates through the pressing plate, the supporting section extends into the sleeve, and the baffle is attached to the pressing plate. This application sets up the back shaft and goes up lock nut, through the position of lock nut on the back shaft on the adjustment, goes up the compression capacity of dish spring group when cylinder piston rod is in the contraction state on the adjustment, but makes the tight electrode of anchor clamps body clamp, avoids giving in-process electrode and last anchor clamps body at the electrode and takes place relative slip, improves the effect of giving of electrode.

As a further improvement of the invention, the lower clamp of the electrode comprises a lower clamp box body, two lower clamp bodies, two elastic pieces and a lower driving device, wherein the two lower clamp bodies are slidably arranged on the lower clamp bodies, the opposite sides of the two lower clamp bodies are respectively provided with a lower groove matched with the electrode, the two elastic pieces are respectively positioned between the side, away from the lower groove, of the two lower clamp bodies and the box body and are in a compressed state, and the lower driving device is arranged at one end of the lower clamp box body and is used for driving one of the elastic pieces to contract. Two lower anchor clamps bodies press from both sides the lower part of tight electrode under the promotion of elastic component in this application, and this application sets up drive arrangement down, and drive arrangement promotes the degree that the tight electrode of anchor clamps body clamp down under the elastic component adjustment under the accessible.

As a further improvement of the invention, the fixture body water cooling system is further included, the body water cooling system comprises a fixture water inlet pipeline and a fixture water outlet pipeline, a water inlet hole and a water outlet hole are formed in the lower fixture body, the fixture water inlet pipeline is communicated with the water inlet hole and used for filling cold water into the lower fixture body, and the fixture water outlet pipeline is communicated with the water outlet hole and used for discharging water in the lower fixture body. Electrode lower part anchor clamps are because being close to the electrode lower part region that generates heat in this application, and its temperature can rise thereupon, and this application sets up body water cooling system, and through letting in the cooling water to this internal, the cooling water exchanges the temperature of heat drop low anchor clamps body with lower anchor clamps body, guarantees that lower anchor clamps body presss from both sides tight electrode.

As a further improvement of the invention, the water-cooled clamp further comprises a side wall water-cooling system, wherein the side wall water-cooling system comprises a side wall water inlet pipeline and a side wall water outlet pipeline, the side wall of the lower clamp box body, which is used for being connected with the lower clamp body, is a water-cooled side wall, the water-cooled side wall is of a hollow structure, the lower part of the water-cooled side wall is provided with a side wall water inlet hole, the upper part of the water-cooled side wall is provided with a side wall water outlet hole, the side wall water inlet hole is communicated with the side wall water inlet pipeline and used for filling cold water into the water-cooled side wall, and the side wall water outlet hole is communicated with the side wall water outlet pipe and used for discharging water in the water-cooled side wall. This application sets up lateral wall water cooling system, reduces the temperature of water-cooling lateral wall through filling into the cooling water to reduce the temperature of whole electrode lower part anchor clamps on the whole.

As a further improvement of the invention, two clapboards are arranged in the water-cooled side wall from bottom to top, one end of the odd number of clapboards from bottom to top is fixed with one end close to the water inlet hole of the side wall, the even number of clapboards is fixed with one end far away from the water inlet hole of the side wall, and the clapboards divide the water-cooled side wall into S-shaped cooling water channels. This application has prolonged the flow path of cooling water in the water-cooling lateral wall owing to set up the baffle, makes the scope that the cooling water flows big, improves the cooling effect of water-cooling lateral wall.

As a further improvement of the invention, the electrode current monitoring system comprises a current sensor and a control system which are installed on the electric melting furnace, the current sensor is in contact with the electrode and is used for detecting the current of the electrode, the current sensor, the lifting driving device and the electrode upper clamp are all in charging connection with the control system, and when the current sensor detects that the current of the electrode is smaller than a preset current value, the electrode upper clamp clamps the electrode and the lifting driving device drives the electrode upper clamp to feed the electrode downwards. According to the electrode current monitoring system, the current of the electrode is detected, the loss of the electrode is determined according to the current of the electrode, the automatic feeding of the electrode is realized, and the manual input is further reduced.

As a further improvement of the invention, the electrode consumption feedback device comprises a fixed plate, a plurality of moving plates, a steel cable and a plurality of photoelectric switches, wherein the moving plates are arranged in parallel and are correspondingly provided with a plurality of through holes, the moving plates are arranged on the fixed plate in a sliding manner, the tops of the moving plates are connected with the tops of the electrodes through the steel cable, the electrodes are fed downwards to pull the moving plates to slide upwards on the fixed plate, the photoelectric switches are arranged on the fixed plate, the moving plates slide to enable the through holes on the moving plates to reach the photoelectric switches, and the photoelectric switches obtain connection signals to remind an operator of the loss condition of the electrodes. This application sets up electrode consumption feedback device, and the consumption pulling movable plate rebound of electrode to through the whole volume that consumes of photoelectric switch detection electrode, whether increase the electrode according to the whole volume of consuming of electrode decision, this application only need when an electrode consumes too much, with another electrode connect the top of consuming the electrode can, other do not need artifical the participation.

In conclusion, the beneficial effects of the invention are as follows: the electrode can be pushed into the electric melting furnace after the electrode is worn, so that the feeding of the electrode is realized, a new electrode can be connected to the top end of the electrode after the electrode is worn, the electrode does not need to be replaced, the electrode is prevented from being replaced, the working efficiency of the electric melting furnace is reduced, the electrode in the electric melting furnace can be completely used for heating the electric melting furnace, the electrode waste is avoided, and the melting cost of glass fiber products is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic view showing the structure of an upper part holder for an electrode according to the present invention.

Fig. 3 is a view from a of fig. 2.

Fig. 4 is a view from direction b of fig. 2.

FIG. 5 is a view showing a first process of clamping the upper part of the electrode in accordance with the present invention.

FIG. 6 is a view showing a process of clamping the upper part of the electrode in accordance with the present invention.

FIG. 7 is a schematic view showing the structure of the electrode lower holder according to the present invention.

Fig. 8 is a view from direction c of fig. 7.

Fig. 9 is a partial sectional view in the direction c of fig. 7.

Fig. 10 is a cross-sectional view taken along the direction d of fig. 7.

FIG. 11 is a schematic view reflecting the electrode lower clamp clamping the electrode in the present invention.

FIG. 12 is a block diagram of the control of the present invention.

Wherein: 1. an electrode; 2. an electrode upper clamp; 3. an electrode lower clamp; 4. a lift drive; 5. an upper drive device; 6. an upper clamp body; 7. a guide bar; 8. an upper end cover; 9. locking the nut; 10. pressing a plate; 11. a sleeve; 12. a connecting section; 13. a baffle plate; 14. a support section; 15. connecting holes; 16. positioning holes; 17. a lower clamp body; 18. an elastic member; 19. a lower drive device; 20. a fixture water inlet pipe; 21. a fixture outlet conduit; 22. a sidewall water inlet conduit; 23. a side wall water outlet pipeline; 24. water-cooling the side wall; 25. a partition plate; 26. a fixing plate; 27. moving the plate; 28. a steel cord; 29. a photoelectric switch; 30. an upper connecting plate; 31. an upper clamp box body pressing plate; 32. lifting lugs; 33. arranging a reinforcing rib; 34. an oil cylinder support frame; 35. an upper disc spring group; 36. a lower clamp box body pressing plate; 37. a disc spring sleeve; 38. a lower baffle plate; 39. a lower positioning hole; 40. a central shaft; 41. a lower pressing plate; 42. a first connecting plate; 43. a lower lock nut; 44. a cylinder support; 45. an oil cylinder base end plate; 46. a second connecting rod.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

Example 1

The electrode feeding device for electric melting furnace production as shown in fig. 1 to 11 comprises an electrode lower clamp 2 and an electrode upper clamp 3, wherein the electrode lower clamp 2 is mounted on a fixture and used for clamping an electrode 1 from the lower end of the electrode 1 to prevent the electrode 1 from sliding downwards under the action of gravity, the electrode upper clamp 3 is connected with a lifting driving device 4 mounted on the fixture and used for clamping the upper part of the electrode 1, the electrode upper clamp 3 clamps the upper part of the electrode 1 and is driven by the lifting driving device 4 to overcome the resistance of the electrode lower clamp 2 to move downwards for feeding the electrode 1 with the lower end extending into the electric melting furnace, the lifting driving device in the embodiment adopts two lifting hydraulic cylinders, the cylinder bodies of the lifting hydraulic cylinders are mounted on the fixture, the piston rods of the lifting hydraulic cylinders extend downwards, and the free ends of the piston rods of the lifting hydraulic cylinders are connected with the electrode upper clamp 3, piston rods of the two lifting hydraulic oil cylinders stretch synchronously to drive the electrode upper clamp to lift up and down.

In this embodiment, the electrode upper fixture 3 includes an upper fixture box, two upper driving devices 5 and two upper fixture bodies 6, the upper fixture box includes two upper connection plates 30 arranged in parallel and two upper fixture box pressing plates 31 arranged in parallel, two ends of each upper fixture box pressing plate 31 are respectively connected with two ends of the two upper connection plates 30, two ends of each upper fixture box pressing plate 31 preferred in the present application are detachably connected with the end of each upper connection plate 30 through matching of bolts and nuts, lifting lugs 32 are fixed on the sides of the upper connection plates 30 of the upper fixture box, end portions of piston rods of the lifting hydraulic cylinders are connected with the lifting lugs 32, in this embodiment, the two upper fixture bodies 6 are all installed on the upper connection plates 30 of the upper fixture box and form a horizontal movement pair with the upper connection plates 30, and the two upper driving devices 5 are installed at two ends of the upper fixture box and are respectively used for driving the two upper fixture bodies 6 to be on the upper fixture body 6 The box body moves, one side in opposite directions on two upper clamp bodies 6 is all opened and is had the upper groove with electrode 1 matched with, two upper drive arrangement 5 drive upper clamp bodies 6 move in opposite directions and are used for pressing from both sides tight electrode 1, two upper drive arrangement 5 drive two upper clamp bodies 6 keep away from each other and are used for unclamping electrode 1, the preferred both ends of last clamp body 6 of this embodiment are all seted up and are put the spout, the top and the bottom of upper junction plate 30 laminate with the upper and lower surface of last spout respectively mutually, upper clamp body 6 during horizontal slip go up the spout and upper junction plate 30 to its slip spacing and direction.

The electrode upper clamp 3 in this embodiment is further provided with an upper disc spring set 35, a plurality of guide rods 7 and an upper end cover 8, the preferred upper driving device 5 in this embodiment is an upper cylinder, the guide rods 7 pass through the upper connecting plate 30 of the upper clamp box and can move relative to the upper clamp box, two ends of the guide rods 7 are respectively connected with the upper clamp body 6 and the upper end cover 8, the upper cylinder is located between the upper end cover 8 and the upper clamp box, the upper disc spring set 35 is located between the upper clamp body 6 and the upper clamp box and is in a compressed state, a piston rod of the upper cylinder extends to push the upper end cover 8 to move towards a direction far away from the upper clamp box, the upper end cover 8 pulls the upper clamp body 6 through the guide rods 7 to separate the upper clamp body 6 from the electrode 1, and the upper clamp body 6 further compresses the upper disc spring set 35, and the piston rod of the upper cylinder contracts, the upper disc spring set 35 pushes the upper clamp body 6 and the upper end cap 8 to move toward the electrode 1 and clamp the electrode 1. The guide rod 7 in this embodiment preferably adopts a screw, the upper clamp body pressing plate 31 is provided with a guide through hole penetrating through two sides of the upper clamp body pressing plate, the screw passes through the guide through hole, wherein the diameter of the guide through hole is slightly larger than the diameter of the screw so that the screw can smoothly move in the guide through hole, the upper clamp body 6 in this embodiment is provided with a threaded hole, one end of the screw extends into the threaded hole and is in threaded connection with the upper clamp body 6, the upper end cover 8 is provided with a screw connecting hole corresponding to the screw, the other end of the screw passes through the screw connecting hole and is provided with a fixing nut in threaded connection with the screw, one side of the upper end cover 8 far away from the upper clamp body 6 is provided with an upper reinforcing rib 33, the upper reinforcing rib 33 is preferably provided with a cross-shaped reinforcing rib, one side of the upper clamp body pressing plate 31 far away from the upper clamp body 6 is fixed with a "U" -shaped cylinder supporting frame 34, in the preferred embodiment, the oil cylinder support frame 34 is welded on the upper clamp box pressing plate 31, the upper oil cylinder is placed on the oil cylinder support frame 34, the piston rod of the upper oil cylinder is arranged towards the upper clamp box pressing plate 31, when the piston rod of the upper oil cylinder extends, the end part of the piston rod of the upper oil cylinder supports against the upper clamp box pressing plate 31, the cylinder body of the upper oil cylinder supports against the upper end cover 8, so that the upper end cover 8 moves towards the direction away from the upper clamp box pressing plate 31, because the upper end cover 8 is connected with the upper clamp body 6 by a screw rod, the upper clamp body 6 moves towards the upper clamp box pressing plate 31 and away from the electrode 1, in the embodiment, the two upper clamp bodies 6 simultaneously move away from the electrode 1, so that the electrode upper clamp 3 loosens the electrode 1, when the piston rod of the lifting hydraulic oil cylinder contracts, the electrode upper clamp 3 can be driven to move upwards without pulling the electrode upwards, when the upper clamp body 6 moves towards the direction of the upper clamp box pressing plate 31, the distance between the upper clamp body and the upper clamp box pressing plate is reduced, the upper disc spring set 35 is further compressed, and the stored energy is more; when the piston rod of the upper oil cylinder contracts, the upper end cover 8 is not pushed by the upper oil cylinder any more, and at the moment, the upper disc spring group 35 extends to release energy, so that the upper clamp body 6 is pushed towards the direction far away from the pressing plate 31 of the upper clamp box body, and the electrode 1 is clamped.

The electrode lower clamp 2 in the embodiment includes a lower clamp box, two lower clamp bodies 17, two elastic members 18 and a lower driving device 19, the lower driving device 19 in the present application preferably employs a lower oil cylinder, the lower clamp box includes two water-cooled side walls 24 arranged in parallel and two lower clamp box pressing plates 36 arranged in parallel, two ends of the two lower clamp box pressing plates 36 are respectively matched with two ends of the two water-cooled side walls 24 by bolts and nuts and detachably connected with the two ends of the two water-cooled side walls 24, the two lower clamp bodies 17 are slidably mounted on the lower clamp bodies 17, lower grooves matched with the electrode 1 are respectively formed on opposite sides of the two lower clamp bodies 17, the two elastic members 18 are respectively located between one side of the two lower clamp bodies 17 far away from the lower grooves and the lower clamp box and are both in a compressed state, the lower driving device 19 is arranged at one end of the lower clamp box for driving one of the elastic members 18 to contract, the elastic member 18 in this embodiment is a lower disc spring set, the lower disc spring set is located between the lower fixture body 17 and the lower fixture box pressing plate 36, a disc spring sleeve 37 is disposed on one side of the lower fixture body 17 close to the lower fixture box pressing plate 36, the lower disc spring set is disposed in the disc spring sleeve 37, a lower baffle 38 is preferably disposed at a connection position of the lower disc spring set and the lower fixture body 17, and a lower positioning hole 39 is opened on the lower fixture body 17, the lower disc spring set in this application is sleeved on a central shaft 40, a lower pressing plate 41 is fixed at one end of the central shaft 40 far from the lower fixture body 17, the lower pressing plate 41 is preferably formed integrally with the central shaft 40, one end of the central shaft 40 close to the lower fixture body 17 penetrates through the lower baffle 38 and extends into the lower positioning hole 39 and can move horizontally in the lower positioning hole 39, one of the lower pressing plates 41 in this application is connected with the lower fixture box pressing plate 36 by a first connecting rod 42, wherein the first connecting rod 42 is fixedly connected (e.g. welded) with the lower clamp box pressing plate 36, the other lower pressing plate 41 is connected with the other lower clamp box pressing plate 36 by using a second connecting rod 46, a moving through hole is formed on the lower clamp box pressing plate 36, the second connecting rod 46 passes through the moving through hole and can horizontally move in the moving through hole, in this embodiment, the second connecting rod 46 is provided with an external thread, a lower locking nut 43 in threaded connection with the second connecting rod 46 is arranged on the second connecting rod 46, in this embodiment, a lower cylinder base is arranged on one side of the lower clamp box pressing plate 36 far away from the lower clamp body 17, the lower cylinder base comprises a cylinder bracket 44 fixedly connected (e.g. welded) with the lower clamp box pressing plate 36 and a cylinder base end plate 45 fixed (e.g. welded) on one end of the cylinder frame 44 far away from the lower clamp box pressing plate 36, the lower cylinder is placed on the lower cylinder base, the piston rod of lower hydro-cylinder sets up towards hydro-cylinder seat end plate 45's direction, second connecting rod 46 stretch into in the hydro-cylinder seat down, the piston rod extension or the shrink of lower hydro-cylinder, its piston rod meets with hydro-cylinder seat end plate 45, the cylinder body of lower hydro-cylinder is used for extrudeing second connecting rod 46 horizontal migration for promote down anchor clamps body 17 and make a level movement immediately, with the tight electrode 1 of adjustment lower anchor clamps body 17 clamp or unclamp. In this application, the force of the lower clamp body 17 clamping the electrode 1 makes the electrode 1 not fall down when the electrode 1 is not pushed down by the upper clamp 3, that is, the electrode 1 is only under the downward gravity, and when the upper clamp 3 pushes down the electrode 1, the electrode 1 can move down. In this embodiment, one side of the lower lock nut 43 close to the lower clamp box pressing plate 35 is attached to the lower clamp box pressing plate 35, the position of the lower lock nut 43 on the second connecting rod 46 can be adjusted by adjusting the force of the lower clamp body 17 clamping the electrode 1 when the lower oil cylinder is not pushed, in this embodiment, the sliding connection mode of the lower clamp body 17 and the lower clamp box pressing plate 36 is the same as the sliding connection mode of the upper clamp body and the upper clamp box pressing plate, which is not described in detail in this embodiment, two sides of the water-cooled side walls 24, which are far away from each other, are provided with a lower lifting lug and a lower fixing block, wherein the lower lifting lug is used for hanging a rope on a fixture, the lower fixing block is used for positioning the electrode lower clamp 2, so that the electrode lower clamp 2 is prevented from shaking, and the stability of the electrode lower clamp 2 in this application is enhanced.

Example 2

The present embodiment is a further improvement on embodiment 1, compared with embodiment 1, the electrode upper clamp 3 in the present embodiment is provided with an upper lock nut 9, a pressing plate 10, a support shaft and a sleeve 11, the support shaft includes a connecting section 12, a baffle 13 and a support section 14, the connecting section 12 is provided with an external thread and the upper lock nut 9 is in threaded fit with the connecting section 12, the connecting section 12 and the support section 14 are respectively fixed on two sides of the baffle 13 and the connecting section 12 and the support section 14 are coaxially arranged, in the present embodiment, the connecting section 12, the baffle 13 and the support section 14 are integrally formed to ensure the connection strength, the upper clamp box pressing plate 31 of the upper clamp box is provided with a connecting hole 15 penetrating through two sides thereof, the upper clamp body 6 is provided with a positioning hole 16 coaxial with the connecting hole 15, one end of the connecting section 12 far from the baffle 13 extends into the connecting hole 15 and can move in the connecting hole 15, go up dish spring group 35 cover establish on sleeve 11 and in sleeve 11's one end stretched into locating hole 16, clamp plate 10 set up the one end of keeping away from last anchor clamps body 6 at last dish spring group 35, sleeve 11 one end of keeping away from last anchor clamps body 6 pass clamp plate 10, support section 14 stretch into in the sleeve 11 and baffle 13 and clamp plate 10 laminate mutually, this application accessible is rotated lock nut 9 and is adjusted its position on linkage segment 12 and ensure to go up dish spring group 35 and be in the state of compressed under the piston rod contraction state of last hydro-cylinder. The structure of the rest of the present application is the same as that in embodiment 1, and reference may be made to embodiment 1 specifically, which is not described in detail herein.

Example 3

The present embodiment is a further improvement on embodiment 1 or embodiment 2, in which the electrode lower fixture 2 in the present application is close to the heating portion of the electrode, so the temperature of the electrode lower fixture 2 is relatively high, in order to reduce the temperature of the electrode lower fixture 2, the present embodiment is provided with a fixture body water cooling system, the fixture body water cooling system includes a fixture water inlet pipe 20 and a fixture water outlet pipe 21, the lower fixture body 17 is provided with a plurality of water inlets and water outlets equal to the water inlets in number, the fixture water inlet pipes 20 are equal to the water inlets in number and respectively communicated with the water inlets for filling cold water into the lower fixture body 17, the fixture water outlet pipes 21 are equal to the water outlets in number and respectively communicated with the water outlets for discharging water from the lower fixture body 17, each water inlet in the present application is communicated with one water outlet, the cooling water introduced from the jig water inlet pipe 20 exchanges heat with the lower jig body 17 to increase the temperature, and the temperature of the lower jig body 17 is lowered, and the cooling water having the increased temperature is discharged from the jig water outlet pipe 21. The structure of the rest of this embodiment is the same as that of embodiment 1 or embodiment 2, and reference may be made to embodiment 1 or embodiment 2, which is not described in detail in this embodiment.

Example 4

The embodiment is a further improvement on the basis of the embodiment 3, and compared with the embodiment 3, the embodiment is further provided with a side wall water cooling system, the side wall water cooling system comprises a side wall water inlet pipeline 22 and a side wall water outlet pipeline 23, the water cooling side wall 24 in the embodiment is of a hollow structure, specifically, a water baffle plate parallel to the water cooling side wall 24 is arranged on the outer side of the water cooling side wall 24, four sides of the water baffle plate are hermetically connected with the water cooling side wall 24 through a sealing plate, a preferred sealing plate in the embodiment is fixed with the water cooling side wall 24 and the water baffle plate in a welding manner, a side wall water inlet hole is formed in the lower part of the sealing plate, a side wall water outlet hole is formed in the upper part of the sealing plate, the side wall water inlet hole is communicated with the side wall water inlet pipeline 22 for filling cold water into the water cooling side wall 24, the side wall water inlet hole is communicated with a side wall water outlet pipe for discharging water in the water cooling side wall 24, in the present embodiment, cooling water is poured from the lower portion of the water-cooled side wall 24 and discharged from the upper portion of the water-cooled side wall 24, and when the cooling water passes through the inside of the water-cooled side plate 24, the cooling water exchanges heat with the water-cooled side wall 24 to lower the temperature of the water-cooled side wall 24.

In the embodiment, two partition plates 25 are arranged between the water-cooling side wall 24 and the water baffle plate from bottom to top, one end of an odd number of the partition plates 25 from bottom to top is fixed with one end close to the side wall water inlet, the even number of the partition plates 25 is fixed with one end far away from the side wall water inlet, and the partition plates 25 separate the water-cooling side wall 24 and the water baffle plate to form an S-shaped cooling water channel so as to prolong the flow path of cooling water and improve the cooling effect of the water-cooling side wall 24.

The structure of the rest of this embodiment is the same as that of embodiment 3, and embodiment 3 may be referred to specifically, and details are not repeated in this embodiment.

Example 5

This embodiment is a further improvement on embodiment 4, and compared with embodiment 4, as shown in fig. 12, the embodiment is provided with an electrode current monitoring system, the electrode current monitoring system comprises a current sensor (not shown) and a control system (not shown) installed on the electric melting furnace, the current sensor is in contact with the electrode 1 for detecting the current of the electrode 1, the current sensor, the lifting driving device 4 and the electrode upper clamp 3 are all in charging connection with the control system, the embodiment sets the current range before use, when the current sensor detects that the current of the electrode 1 is less than the minimum value of the preset current, the electrode upper clamp 3 clamps the electrode 1 and drives the electrode upper clamp 3 to feed the electrode 1 downwards by the lifting driving device 4, and when the electrode 1 is fed downwards too much, so that the current of the electrode 1 is greater than the maximum value of the preset current, in order to reduce the consumption of the electrode 1, the electrode upper clamp 3 clamps the electrode 1 and the lifting driving device 4 drives the electrode upper clamp 3 to pull up the electrode 1, so that the contact between the electrode 1 and rock wool in the electric smelting furnace is reduced, and when the lifting driving device 4 is contracted upwards to not pull the electrode 1, the electrode upper clamp 3 releases the electrode 1. The structure of the rest of this embodiment is the same as that of embodiment 4, and embodiment 4 may be referred to specifically, and details are not repeated in this embodiment.

Example 6

The present embodiment is a further improvement on embodiment 5, compared with embodiment 5, the present embodiment further provides an electrode consumption feedback device, the electrode consumption feedback device includes a fixed plate 26, a plurality of moving plates 27, a steel cable 28 and a plurality of photoelectric switches 29, the fixed plate 26 is disposed on a fixed object, the plurality of moving plates 27 are disposed in parallel and a plurality of through holes are correspondingly opened on the moving plates 27, the preferred number of the moving plates 27 in the present embodiment is three, three moving plates 27 are slidably disposed on the fixed plate 26, the top of the moving plate 27 is connected to the top of the electrode 1 through the steel cable 28, the fixed object is provided with pulleys, the steel cable 28 passes around the pulleys, the electrode 1 is fed downwards to pull the moving plate 27 to slide upwards on the fixed plate 26, the photoelectric switches 29 are detachably mounted on the fixed plate 26 by bolts, the photoelectric switch 29 is connected with an indicator light, the moving plate 27 slides to enable the through hole on the moving plate to reach the photoelectric switch 29, the photoelectric switch 29 obtains a switching-on signal, and the indicator light is turned on to remind an operator of the loss condition of the electrode 1. The structure of the rest of this embodiment is the same as that of embodiment 5, and embodiment 5 may be referred to specifically, and details are not repeated in this embodiment.

The right end of the upper clamp is provided with a side end oil cylinder capable of initially adjusting the pressure of the clamp. When the electrode clamping device works, cooling water is introduced into the lower clamp, the length of the electrode inserted into the furnace is set according to process requirements, and then the pressing force of the lower clamp of the electrode is initialized by utilizing the matching of the side oil cylinder and the locking nut, so that the electrode is clamped and embraced by a small clamping force and does not fall down.

The electrode feedback device consists of three perforated steel plates and nine proximity switches divided into three groups, and three groups of pulley blocks and three steel wire ropes are arranged between the electrode body and the electrode consumption feedback device and used for connecting the electrode and the consumption feedback device. In the work, because the consumption of electrode, upper portion anchor clamps drive the electrode and constantly move down, and the wire rope that links to each other with anchor clamps also moves and upwards promotes the steel sheet of electrode consumption feedback device along with removing, and when the hole on the steel sheet promoted each group photoelectric switch department, photoelectric switch can send the system signal and indicate the consumption of present electrode.

The electrode is provided with a current feedback device, and the electrode can generate current when in work, and the current can change along with the depth of the electrode inserted into the furnace. When the electrodes in the furnace are consumed, the length of the electrodes inserted into the furnace is shortened, and the current is reduced. When the electrode works, the lower limit and the upper limit of the electrode current are set firstly. When the current feedback device detects that the current is at the lower limit value along with the consumption of the electrode, the current feedback device sends a signal to a hydraulic clamping system of an upper electrode clamp, the hydraulic clamping system is in a holding state and sends a signal to a lifting hydraulic cylinder to drive the upper electrode clamp of the holding clamp to overcome the holding force of a lower clamp and drive the electrode to move downwards to compensate the consumption of the electrode, the current on the electrode is continuously increased along with the downward movement process of the electrode, when the current feedback system detects that the current is increased to the upper limit value, the current feedback system sends a signal to the hydraulic clamping system, the hydraulic clamping system enables the electrode to be in a loose state through the action of the hydraulic cylinder and sends a signal to a hydraulic feeding system, the hydraulic feeding system drives the upper electrode clamp in the loose state to be lifted to an upper position through the action of the oil cylinder after receiving the signal, and the hydraulic lifting system sends a signal to the hydraulic clamping system again after the electrode is in place, after receiving the in-place signal, the hydraulic clamping system enables the clamp on the upper part of the electrode to be in a holding state through the action of the oil cylinder to wait for the next feeding action.

The invention realizes the automatic feeding process of the electrode in mineral wool production by an electric melting method by utilizing the elastic fit of the upper clamp and the lower clamp of the electrode, the feedback of the consumption degree of the electrode and the real-time monitoring of the electrode current and the feeding action of the oil hydraulic cylinder. The whole feeding process does not need manual intervention and has the electrode replacement prompting function. Due to the mechanical structure characteristic of the clamp, the system can tightly hold the electrode by means of the matching of the disc spring group and the locking nut under the condition that the oil cylinder is cut off, so that the electrode cannot fall down, and the system has better safety.

The top end of the electrode adopted in the invention is provided with a threaded hole, the bottom end of the electrode is provided with an external thread, and when the electrode is added, the bottom end of the unused electrode is inserted into the threaded hole at the top end of the electrode which is partially consumed, so that the electrode and the threaded hole are in threaded fit.

The operation state of the electrode upper clamp 3 is specifically analyzed as follows: as shown in fig. 3, the cylinder body of the upper oil cylinder described in the present invention is detachably mounted on the upper end cover 8 by using bolts, and in a tightly held state, there is no oil pressure in the upper oil cylinder distributed on both sides, the contact force between the piston of the upper oil cylinder and the pressing plate 31 of the upper clamp box is F =0, the distance between the pressing plate 31 of the upper clamp box and the cylinder body of the upper oil cylinder is denoted as a, the upper disc spring group 35 is in a first-stage compression state, the overall length of the upper disc spring group 35 is denoted as B, the distance between the upper clamp body 6 and the electrode is denoted as C, and at this time, C = 0. The upper locking nut 9 serves for axial positioning and for adjusting the clamping force, the pressure force generated in the clamped state being provided by the interaction force Fa of the upper locking nut 9 and the upper disc spring set 35.

The process of changing from the clasping state to the loosening state is shown in fig. 5 and 6, oil is filled in the upper oil cylinder, the cylinder body of the upper oil cylinder props against the upper end cover 8, the piston rod of the upper oil cylinder exerts pressure F1 on the upper clamp box pressing plate 31, when F1> Fa is continuously increased, the upper disc spring group 35 is changed from a primary compression state to a secondary compression state, the length B1 of the whole upper disc spring group 35 is less than B and B1+ A = B, the upper clamp box pressing plate 31 props against the whole shaft, the length A is moved, the upper disc spring group retracts into the upper clamp box pressing plate 31, the upper locking nut 9 is separated from the upper clamp box pressing plate 31, and the piston of the upper oil cylinder contacts the upper clamp box pressing plate 31 after moving for the distance A. At this point, the upper cylinder is ready for clamping the release electrode, although C1= C = 0.

As F1 continues to increase to F2, the upper cylinder piston continues to extend after contacting the upper clamp body pressure plate 31 as shown in fig. 6, pulling the upper clamp body 6 away from the electrode to a relaxed state by the interaction of the upper end cap and the guide rod 7 attached to the upper clamp body 6. At the moment, the distance A1 between the upper clamp box body pressure plate 31 and the upper cylinder body is greater than A, the upper disc spring group 35 is completely compressed, and the length B2 of the upper disc spring group 35 is less than B1; the distance C2 of the upper clamp body 6 from the electrode is > 0.

If the operation of changing from the loose state to the clasping state is simpler, the self elasticity of the upper disc spring set 35 can be restored only by releasing the pressure of the upper cylinder, and the upper locking nut 9 and the upper disc spring set 35 still clasp the electrode 1 with the acting force Fa after restoration.

The electrode lower clamp 2 is close to the lower end of the electrode, and the temperature of the working environment is higher, so that a clamp body water cooling system and a side wall water cooling system are arranged as shown in fig. 7. The clamp body water cooling system is divided into two groups, and each group is divided into two water inlet channels and two water return channels which are respectively connected with the upper ends of the left clamp and the right clamp. The side wall water cooling system is divided into two groups, one group of inlet water is divided into two paths before entering the water cooling side walls 24, the inlet water respectively enters the two water cooling side walls 24 from the lower ends of the water cooling side walls 24 on the two sides, the other group of return water is also divided into two paths, and the inlet water leaves the water cooling side walls 24 from the upper ends of the water cooling side walls 24 on the two sides and is one path of return water. Because the high temperature of the working environment is not completely the same and the required cooling capacity is different, the cooling water on the water-cooling side wall and the cooling water on the clamp body are respectively provided with an independent water-cooling control system so as to achieve the purpose of independently controlling the cooling water quantity.

The working state of the electrode lower clamp 2 is only the holding state, and the holding force required by the state is much smaller than that of the electrode upper clamp 3 (because the electrode 1 is displaced downwards by overcoming the holding force of the electrode lower clamp 2 when the electrode upper clamp 3 is held tightly), so that only the right side of the lower clamp box is provided with a lower oil cylinder to pre-adjust the holding force of the lower clamp body 17.

The specific implementation mode of the preset is as follows: as shown in fig. 9, the left lower clamp body is positioned by rotating the left lower locking nut, so that the left lower clamp body is just in contact with the electrode, the length of the left lower disc spring group is denoted as M, the right lower locking nut is adjusted by the same method when the right lower cylinder is in a pressure relief state, so that the right lower clamp body is just in contact with the electrode, the length of the right lower disc spring group is consistent with the length of the left lower disc spring group, the extending distance of the piston of the lower cylinder is denoted as N, and the acting force F =0 of the lower cylinder on the right lower clamp body.

The lower oil cylinder starts to charge oil, a piston of the lower oil cylinder starts to extend, the extending distance of a piston rod of the lower oil cylinder is changed from N to N1, the acting force of the lower oil cylinder on the lower clamp body on the right side is changed from F to F1, the lower oil cylinder starts to prop against the lower clamp body on the right side to hold an electrode tightly, the lower locking nut starts to displace towards the left side, the further compression length of the lower disc spring group is changed into M1, M1 is greater than M, at the moment, F1 is transmitted to the left lower disc spring group through the lower clamp body on the right side, the electrode and the lower clamp body on the left side, and the length of the left lower disc spring group is also compressed to M1. And at the moment, the lower locking nut on the right side is clockwise adjusted to be locked on the pressing plate of the box body of the lower clamp again, and the electrode is in a state of being tightly held by the lower clamp of the electrode.

The lower oil cylinder is decompressed again, the left lower clamp body, the graphite electrode and the right two clamp bodies cannot move due to decompression because of the positioning of the lower locking nuts at the two ends, F1 is changed into F =0 again due to decompression, and the extension length of the piston of the lower oil cylinder is reset into N again from N1. The initial adjustment of the clamping force of the electrode lower clamp is completed.

Parts which are not specifically described in the above description (such as a control chip adopted by a control system) are all the prior art, or can be realized through the prior art. Moreover, the embodiments described in this application are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. All equivalent changes and modifications made according to the content of the claims of the present application should be regarded as the technical scope of the present application.

Claims

1. An electrode feeding device for electric melting furnace production, characterized in that: the electrode feeding device comprises an electrode lower clamp (2) and an electrode upper clamp (3), wherein the electrode lower clamp (2) is arranged on a fixture and used for clamping an electrode (1) from the lower end of the electrode (1) to prevent the electrode (1) from sliding downwards under the action of gravity, the electrode upper clamp (3) is connected with a lifting driving device (4) arranged on the fixture and used for clamping the upper part of the electrode (1), the electrode lower clamp (2) clamps the electrode (1) all the time when the electrode is fed, and the electrode upper clamp (3) clamps the upper part of the electrode (1) and is driven by the lifting driving device (4) to overcome the resistance of the electrode lower clamp (2) to move downwards for feeding the electrode (1) with the lower end extending into an electric smelting furnace;

the electrode upper clamp (3) comprises an upper clamp box body, two upper driving devices (5) and two upper clamp bodies (6), the upper clamp box body is connected with a lifting driving device (4), the two upper clamp bodies (6) are both installed on the upper clamp box body and form a horizontal moving pair with the upper clamp box body, the two upper driving devices (5) are installed at two ends of the upper clamp box body and are respectively used for driving the two upper clamp bodies (6) to move on the upper clamp box body, upper grooves matched with the electrodes (1) are formed in opposite sides of the two upper clamp bodies (6), the two upper driving devices (5) drive the upper clamp bodies (6) to move in opposite directions and are used for clamping the electrodes (1), and the two upper driving devices (5) drive the two upper clamp bodies (6) to be away from each other and are used for loosening the electrodes (1);

the electrode upper clamp (3) further comprises an upper disc spring group (35), a plurality of guide rods (7) and an upper end cover (8), the upper driving device (5) is an upper oil cylinder, the guide rods (7) penetrate through the upper clamp box body and can move relative to the upper clamp box body, two ends of each guide rod (7) are respectively connected with the upper clamp body (6) and the upper end cover (8), the upper oil cylinder is positioned between the upper end cover (8) and the upper clamp box body, the upper disc spring group (35) is positioned between the upper clamp body (6) and the upper clamp box body and is in a compressed state, a piston rod of the upper oil cylinder extends to push the upper end cover (8) to move towards a direction far away from the upper clamp box body, the upper end cover (8) pulls the upper clamp body (6) through the guide rods (7) to separate the upper clamp body (6) from the electrode (1) and further compress the upper disc spring group (35) through the upper clamp body (6), and a piston rod of the upper oil cylinder contracts, the upper disc spring group (35) pushes the upper clamp body (6) and the upper end cover (8) to move towards the direction of the electrode (1) and clamp the electrode (1);

the electrode upper part clamp (3) further comprises an upper locking nut (9), a pressing plate (10), a support shaft and a sleeve (11), the support shaft comprises a connecting section (12), a baffle plate (13) and a support section (14), the connecting section (12) is provided with external threads, the upper locking nut (9) is in threaded fit with the connecting section (12), the connecting section (12) and the support section (14) are respectively fixed on two sides of the baffle plate (13) and the connecting section (12) and the support section (14) are coaxially arranged, a connecting hole (15) penetrating through the upper clamp box body and the lower clamp box body is formed in the upper clamp box body, a positioning hole (16) coaxial with the connecting hole (15) is formed in the upper clamp body (6), one end, far away from the baffle plate (13), of the connecting section (12) extends into the connecting hole (15) and can move in the connecting hole (15), an upper disc spring group (35) is sleeved on the sleeve (11) and one end of the sleeve (11) extends into the positioning hole (16), the pressing plate (10) is arranged at one end, far away from the upper clamp body (6), of the upper disc spring group (35), one end, far away from the upper clamp body (6), of the sleeve (11) penetrates through the pressing plate (10), the supporting section (14) extends into the sleeve (11), and the baffle (13) is attached to the pressing plate (10);

the electrode lower clamp (2) comprises a lower clamp box body, two lower clamp bodies (17), two elastic pieces (18) and a lower driving device (19), wherein the two lower clamp bodies (17) are slidably mounted on the lower clamp box body, lower grooves matched with the electrodes (1) are formed in opposite sides of the two lower clamp bodies (17), the two elastic pieces (18) are respectively positioned between one side, far away from the lower grooves, of the two lower clamp bodies (17) and the lower clamp box body and are in a compressed state, and the lower driving device (19) is arranged at one end of the lower clamp box body and is used for driving one of the elastic pieces (18) to contract; the elastic part (18) adopts a lower disc spring group, and the lower driving device (19) adopts a lower oil cylinder;

the electrode lower clamp (2) also comprises a lower clamp box pressing plate (36), a disc spring sleeve (37), a central shaft (40), a lower pressing plate (41) and a lower locking nut, wherein the lower disc spring group is arranged in the disc spring sleeve (37), a lower baffle (38) is arranged at the joint of the lower disc spring group and the lower clamp body (17), a lower positioning hole (39) is formed in the lower clamp body (17), the lower pressing plate (41) and the central shaft (40) are integrally formed, one end of the central shaft (40), which is close to the lower clamp body (17), penetrates through the lower baffle (38), extends into the lower positioning hole (39) and can horizontally move in the lower positioning hole (39), one of the lower pressing plates (41) is connected with one of the lower clamp box pressing plates (36) by adopting a second connecting rod (46), a moving through hole is formed in the lower clamp box pressing plate (36), the second connecting rod (46) penetrates through the moving through hole and can horizontally move in the moving through hole, the second connecting rod (46) is provided with external threads, and the lower locking nut is in threaded connection with the second connecting rod (46); a lower oil cylinder base is arranged on one side, away from the lower clamp body (17), of one lower clamp box pressing plate (36), the lower oil cylinder base comprises an oil cylinder support (44) fixedly connected with the lower clamp box pressing plate (36) and an oil cylinder base end plate (45) fixed to one end, away from the lower clamp box pressing plate (36), of the oil cylinder support (44), the lower oil cylinder is placed on the lower oil cylinder base, a piston rod of the lower oil cylinder is connected with the oil cylinder base end plate (45), a second connecting rod (46) extends into the lower oil cylinder base, and a cylinder body of the lower oil cylinder is used for extruding the second connecting rod (46) to move horizontally and pushing the lower clamp body (17) to move horizontally;

the fixture is characterized by further comprising a fixture body water cooling system, wherein the fixture body water cooling system comprises a fixture water inlet pipeline (20) and a fixture water outlet pipeline (21), a water inlet hole and a water outlet hole are formed in the lower fixture body (17), the fixture water inlet pipeline (20) is communicated with the water inlet hole and used for filling cold water into the lower fixture body (17), and the fixture water outlet pipeline (21) is communicated with the water outlet hole and used for discharging water in the lower fixture body (17);

the side wall water cooling system comprises a side wall water inlet pipeline (22) and a side wall water outlet pipeline (23), the side wall of the lower clamp box body, which is used for being connected with the lower clamp body (17), is a water cooling side wall (24), the water cooling side wall (24) is of a hollow structure, the lower part of the water cooling side wall is provided with a side wall water inlet hole, the upper part of the water cooling side wall is provided with a side wall water outlet hole, the side wall water inlet hole is communicated with the side wall water inlet pipeline (22) and used for filling cold water into the water cooling side wall (24), and the side wall water outlet hole is communicated with the side wall water outlet pipe and used for discharging water in the water cooling side wall (24); two clapboards (25) are arranged in the water-cooling side wall (24) from bottom to top, one end of the odd-numbered clapboards (25) from bottom to top is fixed with one end close to the side wall water inlet, the even-numbered clapboard is fixed with one end far away from the side wall water inlet, and the clapboards (25) separate the water-cooling side wall (24) into S-shaped cooling water channels.

2. The electrode feeding device for electric melter production as recited in claim 1, wherein: the electrode current monitoring system comprises a current sensor and a control system which are installed on the electric melting furnace, the current sensor is in contact with the electrode (1) and is used for detecting the current of the electrode (1), the current sensor, a lifting driving device (4) and an electrode upper clamp (3) are connected with the control system in a charging mode, the electrode upper clamp (3) clamps the electrode (1) when the current of the electrode (1) is detected to be smaller than a preset current value, and the electrode (1) is driven by the lifting driving device (4) to drive the electrode upper clamp (3) to feed the electrode (1) downwards.

3. The electrode feeding device for electric melter production as recited in claim 2, wherein: the electrode consumption feedback device comprises a fixed plate (26), a plurality of moving plates (27), a steel cable (28) and a plurality of photoelectric switches (29), wherein the moving plates (27) are arranged in parallel, a plurality of through holes are correspondingly formed in the moving plates (27), the moving plates (27) are arranged on the fixed plate (26) in a sliding mode, the tops of the moving plates (27) are connected with the tops of the electrodes (1) through the steel cable (28), the electrodes (1) are fed downwards to pull the moving plates (27) to slide upwards on the fixed plate (26), the photoelectric switches (29) are arranged on the fixed plate (26), the moving plates (27) slide to enable the through holes in the moving plates to reach the photoelectric switches (29), and the photoelectric switches (29) obtain connection signals to remind an operator of the consumption condition of the electrodes (1).