CN217504325U - Recyclable tin concentrate smelting system - Google Patents

Abstract

The utility model discloses a tin concentrate circulated smelting system belongs to tin concentrate processing technology field. The utility model discloses an including smelting the electric stove, smelting the electrode bar synchronous replacement device at electric stove top and smelting the tin liquid processing apparatus after the electric stove smelts the ejection of compact, wherein: the tin liquid treatment device comprises a sedimentation tank and a standing forming tank, wherein the sedimentation tank is arranged at the bottom of a discharge hole of the smelting electric furnace, and an overflow port is formed in the upper part of the sedimentation tank and is connected with the standing forming tank; the electrode bar synchronous replacing device comprises a supporting platform, a tin concentrate transferring mechanism and an electrode bar lifting mechanism, wherein the tin concentrate transferring mechanism and the electrode bar lifting mechanism are fixed on the supporting platform; the electrode rod lifting mechanisms are symmetrically and vertically arranged around the furnace top; the furnace top surrounding the middle opening of the furnace top is also provided with symmetrically distributed electrode bar inserting holes, and materials are evenly dropped between the electrode bars when being fed through the middle opening, so that the technical effect of evenly heating the materials is achieved.

Description

Tin concentrate recyclable smelting system

Technical Field

The utility model relates to a tin concentrate processing technology field, the more specifically circulated smelting system of tin concentrate that says so.

Background

In smelting electric furnaces for producing tin, ferroalloys, silicon, pig iron and the like, consumable electrode rods, typically carbon electrodes, are used which are immersed in the charge material during operation of the smelting electric furnace. The electrode is held by an electrode holder. The working current is conducted to the electrode clamp and then to the electrode. The electrodes are vertically adjusted by hydraulic cylinders to maintain a predetermined electrode current, or a predetermined resistance value. The electrode clamp system further includes means for sliding the electrode through the electrode clamp to compensate for consumption of the electrode. This electrode rod that tin concentrate electric furnace was used is top position in smelting the electric furnace, belongs to the consumable article, needs often to change, because electrode rod weight is great, needs to lift by crane in the change process, but ordinary driving lifts by crane the formula installation and hardly aims at the installing port and lead to the installation effectiveness poor, in addition, takes place the interference formula collision easily and causes the loss and the safety risk of electrode rod. When the existing tin concentrate electric furnace feeds, concentrate is generally conveyed to a feed inlet on the furnace top through a conveyor, for the convenience of feeding, the feed inlet is generally arranged on one side of the furnace top, the technical problem that the concentrate is unevenly fed in the electric furnace after feeding exists, further the temperature rise of the concentrate is unbalanced, and the consumption degree of electrode rods is different.

In an electric smelting furnace for producing tin, tin concentrate powder is in a fluid state after being smelted in the electric smelting furnace, the density of the liquid is naturally different due to different components in the liquid, wherein the density of metal components mainly containing tin is higher, and after the fluid flows out of the electric smelting furnace, tin slag and tin liquid are separated by utilizing the principle of standing and layering with different densities.

When the tin slag after layering is recycled in the existing tin concentrate electric furnace tin concentrate, the cooled tin slag needs to be segmented due to large volume, the segmentation wastes time and labor, the circular production cannot be realized, and the production efficiency is low. Moreover, during the process that the fluid flows out of the electric smelting furnace, the smoke dust in the furnace overflows along with the fluid, thereby causing environmental pollution to a certain degree.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To current tin concentrate electric stove feeding inequality lead to concentrate intensification inequality, smelt the unbalance, influence the problem that the material balanced formula heaies up during the tin dross feed back after the ejection of compact, cooling, the utility model discloses a tin concentrate circulated smelting system, through the shaping pond of stewing after cooling the tin dross broken, with the timely middle part opening feeding at the furnace roof of passing through of other tin concentrates, electrode bar symmetrical formula male mode around the middle part opening reaches the purpose of heaing up and smelting the concentrate to the material balanced formula.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model provides a tin concentrate circulative smelting system, includes that smelt the synchronous change device of electrode bar at electric stove, smelting electric stove top and smelt the tin liquid processing apparatus after the electric stove smelts the ejection of compact, wherein: the tin liquid treatment device comprises a sedimentation tank and a standing forming tank, wherein the sedimentation tank is arranged at the bottom of a discharge hole of the smelting electric furnace, and an overflow port is formed in the upper part of the sedimentation tank and is connected with the standing forming tank; the tin slag on the upper layer of the sedimentation tank flows into the standing forming tank through an overflow port of the sedimentation tank, and the refined tin liquid on the lower layer is conveyed to the next working procedure through a bottom outlet of the sedimentation tank; the electrode bar synchronous replacing device comprises a supporting platform, and a tin concentrate transferring mechanism and an electrode bar lifting mechanism which are fixed on the supporting platform, wherein after a furnace body of the smelting electric furnace penetrates through the supporting platform, the furnace top of the smelting electric furnace protrudes out of the supporting platform; the electrode bar lifting mechanisms are symmetrically and vertically arranged around the furnace top; electrode bar inserting holes are symmetrically distributed on the furnace top surrounding the middle opening of the furnace top, and materials can be evenly dropped among the electrode bars when fed through the middle opening, so that the technical effect of evenly heating the materials is achieved; the feed end of the tin concentrate transfer mechanism is transversely fixed on the supporting platform through a bracket of the tin concentrate transfer mechanism, and a blanking port at the discharge end of the tin concentrate transfer mechanism is communicated with the middle opening of the furnace top in a sealing manner; the electrode rod lifting mechanism inserts the electrode rod into an electrode rod insertion opening of the furnace top; the tin dross of the molding pool that stews is broken after the shaping, returns through tin concentrate transport mechanism and smelts electric stove cyclic utilization, in addition, when the tin dross is in time the feed back, has also avoided thermal excessive loss in the tin dross.

According to the further technical scheme, the settling tanks correspond to the smelting electric furnaces one by one, the two sides of the settling tanks are arranged in rows and are symmetrically distributed in pairs, one settling tank can correspond to a plurality of pairs of smelting electric furnaces, the utilization rate of the settling tank is improved, the production efficiency is improved, a plurality of forming blind holes for forming tin slag forming ingots are distributed at the bottom of the settling tank, the forming blind holes naturally divide the tin slag, secondary division of the formed tin slag is avoided, and therefore the purposes of saving time and labor and achieving rapid recycling are achieved; the electrode bar synchronous replacing device also comprises a tin concentrate lifting mechanism, which is generally an auger type conveyor, wherein a bottom feed inlet of the tin concentrate lifting mechanism is communicated with the tin concentrate temporary storage bin, and an upper discharge outlet of the tin concentrate lifting mechanism is communicated with a feed end of the tin concentrate transferring mechanism; the number of the electrode rod lifting mechanisms is three, and the finished product is distributed around the furnace top; the electrode rod lifting mechanism comprises a vertical fixing frame, a lifting arm, a winch and a pulley mechanism; the electrode rod lifting mechanism is fixed on the supporting platform through a vertical fixing frame. A plurality of tin concentrate lifting mechanisms are not required to be arranged, and the purpose of feeding materials through the opening in the middle of the furnace top can be achieved by connecting one tin concentrate lifting mechanism with one tin concentrate transferring mechanism; and 3 electrode bar lifting mechanisms are not required to be arranged, and the purpose of uniform temperature rise of the material can be achieved.

According to the further technical scheme, the forming blind hole is in a frustum or cone shape, the formed tin slag forming ingot is in a corresponding frustum or cone shape, the forming blind hole is similar to a mold and is convenient to remove the mold, a lifting rod is preset in the forming blind hole, and the forming blind hole can be conveniently removed from the forming blind hole after being formed; the vertical fixing frame comprises a vertical support and a support guide pillar on the inner side of the support, and further comprises a crane boom transversely and fixedly connected to the top ends of the support and the support guide pillar; the support column and the support guide column are both fixedly connected to the support platform; one end of the lifting arm is fixedly connected with a guide frame which is sleeved on the support guide post and is in sliding connection with the support guide post, and the other end of the lifting arm is fixedly connected with an electrode bar fixing piece; the pulley mechanism comprises a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley which is parallel to the third fixed pulley and is sequentially arranged and fixed on the upper surface of the crane boom, and further comprises a first movable pulley fixed on the upper surface of the lifting arm, and a first through hole and a second through hole penetrate through the crane boom close to the second fixed pulley and the third fixed pulley respectively; the winch is fixed on the outer side of the lower part of the pillar, the free end of a traction rope of the winch sequentially bypasses a first fixed pulley, a fourth fixed pulley, a second through hole which downwards penetrates through a first movable pulley, a second through hole which upwards penetrates through a second fixed pulley, a third fixed pulley and a second fixed pulley and downwards penetrates through a first through hole, the winch is fixedly connected to the guide frame, the winch is fixed on the supporting platform through a stable vertical fixing frame, the guide pillar and the guide frame are matched in a vertical guide type lifting mode, and the lifting arm of the winch is matched with the fixed pulley and the movable pulley in the pulley mechanism, so that the technical effects of accurately aligning the mounting opening to mount the electrode rod and improving the replacement efficiency are achieved.

According to the further technical scheme, the pulley mechanism further comprises a fixed pulley five close to the through hole II and a movable pulley II parallel to the movable pulley I on the upper surface of the lifting arm, wherein the fixed pulley five and the fixed pulley are arranged on two sides of the through hole II in three rows; the free end of the traction rope sequentially bypasses the first fixed pulley and the fourth fixed pulley, downwards passes through the second through hole, bypasses the first movable pulley, upwards passes through the second through hole, bypasses the fifth fixed pulley, downwards passes through the second through hole, bypasses the second movable pulley, upwards passes through the second through hole, bypasses the third fixed pulley and the second fixed pulley, and downwards passes through the first through hole, and then is fixedly connected to the guide frame.

In a further technical scheme, the longitudinal section of the handle rod is shaped like a Chinese character 'shi'; the molding blind holes are the same in size and are uniformly distributed in the standing molding pool, so that the combination degree of a tin slag molding ingot and the handle rod is improved when tin slag is molded, and when the tin slag molding ingot is in a frustum shape, the length of a cross rod at the bottom of the handle rod can be the same as or slightly smaller than the diameter of a bottom circle of the frustum, and the combination degree is higher; the wheel directions of the fixed pulley V and the fixed pulley III are mutually vertical, so that mutual interference caused by 4 strands of traction ropes formed after winding can be effectively avoided.

According to the technical scheme, the handle rod is a triangular frame, the structure is stable, and the handle rod can be effectively prevented from being knocked down when tin slag fluid flows into the forming blind hole after the handle rod is preset in the forming blind hole; the electrode bar fixing part is a single-slit or double-slit half sleeve, and can be disassembled, so that the electrode bar is convenient to install and disassemble; the bottom end face of the half sleeve is fixedly connected with a sealing ring, so that mine dust is prevented from overflowing.

The technical scheme is that the device also comprises a waste gas and waste dust treatment device, wherein the waste gas and waste dust treatment device comprises a reciprocating movable cover, an exhaust mechanism and a dust hood covered above the sedimentation tank; the reciprocating movable cover is covered above the standing forming pool, and the top of the reciprocating movable cover is communicated with and fixed with a ventilation pipe; the exhaust mechanism is transversely fixed between the two smelting electric furnaces and comprises a transverse gas collecting main pipe and an exhaust pipe, the gas collecting main pipe is communicated with the ventilation pipe and the exhaust pipe, and smoke dust is discharged outside for treatment through the exhaust mechanism, for example, the smoke dust is discharged into a cloth bag dust removal device or a sulfur removal device for treatment; the top of the dust hood is externally connected with a vent pipe; the upper part of the inner side of the sedimentation tank is respectively close to two ends of a gas collecting main pipe, and the gas collecting main pipe is provided with a gas collecting branch pipe I; the exhaust pipe is connected to the middle of the gas collecting main pipe, and a gas collecting branch pipe II and a gas collecting branch pipe III are arranged between each gas collecting branch pipe I and the exhaust pipe respectively, so that full-closed management of discharging is realized, and environment pollution caused by smoke dust overflow is avoided.

According to a further technical scheme, sliding blocks are fixed on the front side wall and the rear side wall of the reciprocating movable cover, and the bottom of the reciprocating movable cover is sunk into the bottom of the standing forming pool and is close to the forming blind hole; the guide rail matched with the sliding block is fixed on the tank edge of the standing forming tank, the reciprocating movable cover plays a role in sealing and scraping materials in the reciprocating motion process on the guide rail, namely smoke dust generated in the standing process is sealed in the reciprocating movable cover and then is discharged outside through the ventilation pipe at the top, and the tin slag in the forming blind hole is cooled and formed in the discharging process; the guide frame is internally fixed with a rolling rail piece which is in rolling connection with the guide pillar, so that the guide frame drives the lifting arm to ascend and descend in a sliding upgrading mode to roll, and the lifting arm is more convenient and efficient to ascend and descend.

According to a further technical scheme, the rolling rail piece comprises a connecting shaft and rotating wheels, wherein the connecting shaft is arranged in the guide frame and is connected with the two frame plates opposite to the guide frame, and the rotating wheels are sleeved at the two ends of the connecting shaft and convert sliding into rolling, so that time and labor are saved; the left side wall and the right side wall of the reciprocating movable cover are provided with ventilation openings, the ventilation openings are opened and closed through sliding doors which are arranged in a matched mode, and after smoke dust treatment is finished, cold air is sucked to accelerate the tin slag to be formed into tin slag forming ingots; the bottom of the sliding block is rotatably connected with a roller; elastic mechanisms are symmetrically fixed at the bottom of the dust hood, so that a certain margin is reserved when the vent pipe at the top is in butt joint with the gas collecting branch pipe, and the universality of the dust hood is improved.

A processing technology of a tin concentrate recyclable smelting system comprises the following steps:

s1, synchronously replacing electrode bars: synchronously replacing the electrode rods on the top of the smelting electric furnace by an electrode rod synchronous replacing device;

s2, discharging: discharging the fluid smelted in the smelting electric furnace into a settling tank, standing, opening an overflow port, allowing the upper-layer tin slag to flow into a standing forming tank, and conveying the lower-layer refined tin liquid to other processes through a bottom outlet;

s3, standing: spreading the tin slag to the forming blind holes (31), standing and forming;

s4, feed back: crushing the formed tin slag, and returning the crushed tin slag to the smelting electric furnace for recycling through a tin concentrate transfer mechanism;

s5, exhaust: and in the forming process, opening the exhaust pipe and discharging the smoke dust in the exhaust pipe.

A processing technology of a tin concentrate recyclable smelting system realizes the separation of tin slag and tin liquid in smelting electric furnaces on two sides of a standing forming pool and the forming of the separated tin slag in the standing forming pool through reciprocating motion of a reciprocating movable cover on the standing forming pool and alternate butt joint of a ventilation pipe, a gas collecting branch pipe II and a gas collecting branch pipe III.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the tin concentrate recyclable smelting system of the utility model is symmetrically arranged around the middle opening of the furnace top through the electrode rods, and materials can be discharged between the electrode rods in a relatively balanced manner when being fed through the middle opening, thereby achieving the technical effect of material balanced type temperature rise smelting; smoke dust generated by overflow of the smelting electric furnace and molding of the tin dross is discharged outside through the exhaust mechanism, for example, the smoke dust is discharged to a bag dust removal device or a sulfur removal device for treatment, the tin dross is naturally divided through the molding blind holes, and secondary division of the molded tin dross is avoided, so that the purposes of saving time and labor, improving the production efficiency, saving energy, reducing consumption and avoiding environmental pollution are achieved;

(2) the tin concentrate recyclable smelting system of the utility model, under the synergistic effect of the electrode bar synchronous replacing device, the tin liquid processing device and the waste gas and waste dust processing device, avoids environmental pollution, and simultaneously recycles tin slag in time, thereby achieving the technical effects of reducing heat loss, raising temperature and smelting in a material balanced manner and improving production efficiency;

(3) the tin concentrate recyclable smelting system of the utility model can discharge smoke dust outside, and can reciprocate on the standing forming pool, and the smoke dust can be supplied to smelting electric furnaces on two sides of the standing forming pool for alternative use respectively, thereby improving the use efficiency; the fluid tin dross can be uniformly scraped into the forming blind hole, so that the mold feeding speed of the tin dross is improved, and an unexpected technical effect is achieved; a plurality of tin concentrate lifting mechanisms are not required to be arranged, and the purpose of feeding materials through the opening in the middle of the furnace top can be achieved by connecting one tin concentrate lifting mechanism with one tin concentrate transferring mechanism; 3 electrode bar lifting mechanisms are not needed to be arranged, and the purpose of balanced heating smelting of the materials can be achieved;

(4) the tin concentrate recyclable smelting system of the utility model has the advantages that the ventilation opening is opened and closed through the sliding door which is arranged in a matching way, and after the smoke dust treatment is finished, the tin slag is accelerated to be formed into tin slag forming ingots through sucking cold air; the roller converts the sliding reciprocation of the reciprocating movable cover into rolling reciprocation, thereby saving time and labor;

(5) the tin concentrate recyclable smelting system of the utility model has the advantages that the gas collecting main pipe is externally provided with the branch pipe which is matched with the reciprocating action of the reciprocating movable cover, the full-closed management of the discharging of the electric furnace is realized, and the environment pollution caused by the overflow of smoke dust is avoided; in addition, the tin slag in a fluid state is directly flowed to the standing forming pool for forming through an overflow port at the upper part of the sedimentation pool, and the circulating uninterrupted production of the standing forming pool can be realized by matching with electric furnaces at two sides;

(6) the tin concentrate recyclable smelting system of the utility model has the advantages that the handle rod is conveniently formed and then lifted out of the forming blind hole, the longitudinal section of the handle rod is shaped like a Chinese character 'ji', and the combination degree of the forming tin slag and the handle rod is improved when the tin slag is formed;

(7) the tin concentrate recyclable smelting system of the utility model is fixed on the working surface through the stable double-column vertical fixing frame, and the vertical guide type lifting guide pillar is matched with the guide frame, so that the guide pillar also has the double functions of supporting and guiding; the hoisting type lifting arm is matched with the fixed pulley and the movable pulley in the pulley mechanism, so that the technical effects of accurately aligning the mounting opening to mount the electrode bar and improving the replacement efficiency are achieved; the double-acting pulley and the fixed pulley in the pulley mechanism act cooperatively, so that the operation is more labor-saving, and the lifting weight can be effectively improved; the directions of the fixed pulley V and the fixed pulley three are mutually vertical, but one of the two pulleys is vertical and the other is transversely arranged, so that the mutual interference caused by forming 4 strands of traction ropes after the double-acting pulleys are wound can be effectively avoided; moreover, the half sleeve type electrode bar fixing part can be detached, so that the electrode bar can be conveniently mounted and dismounted;

(8) the tin concentrate recyclable smelting system of the utility model has the advantages that the rail rolling piece enables the guide frame to drive the lifting arm to lift from sliding to rolling, and the lifting arm is more convenient and efficient to lift; the symmetrically distributed connecting shafts and the rolling rail pieces matched with the rotating wheels enable rolling friction force to achieve the technical effect of uniform sharing, lifting of the lifting arm is more efficient and labor-saving, and the service life of the lifting arm can be prolonged; the step-shaped runner is clamped on the side edge of the guide pillar, and the step-shaped runner rolls and plays a role in guiding.

(9) The tin concentrate circulating smelting system of the utility model has the advantages that one standing forming pool can correspond to a plurality of pairs of smelting electric furnaces, the utilization rate of the standing forming pool is improved, and the production efficiency is improved; the size of the formed blind holes can be designed to be the same, and batch processing is facilitated.

Drawings

FIG. 1 is a schematic structural view of a tin concentrate recyclable smelting system of the present invention;

FIG. 2 is a schematic structural view of the electrode rod synchronous replacing device of the present invention;

fig. 3 is a schematic structural view of a tin concentrate transferring mechanism in the utility model;

FIG. 4 is a schematic view of the lifting mechanism of the electrode rod of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

FIG. 6 is a schematic view showing the structure of an electrode rod elevating mechanism according to embodiment 3;

FIG. 7 is a schematic diagram of the lifting state of the counter electrode of the present invention

FIG. 8 is a schematic structural view of a molten tin processing apparatus according to the present invention;

FIG. 9 is an enlarged view of B in FIG. 8;

FIG. 10 is a schematic view of a dust cage of the present invention;

FIG. 11 is a schematic structural view of a formed solder dross ingot with a handle bar;

FIG. 12 is a schematic view showing a configuration of a molten tin dross forming ingot with a handle bar in example 3 after forming;

FIG. 13 is a schematic view showing the construction of a preferred handle bar of embodiment 3;

fig. 14 is a schematic structural view of a handle bar in embodiment 4.

In the figure: 1-smelting an electric furnace; 2-electrode bar synchronous replacing device; 3-a tin liquor treatment device; 4-a waste gas and dust treatment device; 5-reciprocating movable cover; 6-an exhaust mechanism; 7-dust collecting cover; 11-a discharge hole; 20. an electrode bar lifting mechanism; 21-vertical fixed mount; 22-a lifting arm; 23-a winch; 24-a pulley mechanism; 25-a support platform; 26-electrode rods; 28-tin concentrate lifting mechanism; 29-a tin concentrate transfer mechanism; 32-a sedimentation tank; 33-standing and forming the pond; 34-forming the tin dross into ingots; 51-a slider; 52-a vent; 53-sliding doors; 55-ventilating pipe; 56-a roller; 61-gas collection header; 63-an exhaust pipe; 71-a breather pipe; 72-a resilient mechanism; 211-jib boom; 212-a pillar; 213-a guide pillar; 221-a guide frame; 222-electrode rod holder; 223-a roller track member; 224-a sealing ring; 231-a hauling rope; 241-fixed pulley I; 242-fixed pulley two; 243-fixed pulley three; 244-fixed pulley four; 245-fixed pulley five; 246-movable pulley one; 247-movable pulley two; 291-a stent; 292-blanking port; 321-an overflow port; 331-forming blind holes; 332-a guide rail; 341-handle bar; 611, a gas collecting branch pipe I; 612-a gas collecting branch pipe II; 613-gas collecting branch pipe III; 2111-Via one; 2112-through hole two; 2231-a runner; 2232 connecting shaft.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

Example 1

The tin concentrate recyclable smelting system of the embodiment, as shown in fig. 1, includes a smelting electric furnace 1, an electrode bar synchronous replacing device 2 at the top of the smelting electric furnace 1, and a tin liquid processing device 3 after the smelting electric furnace 1 discharges materials, wherein: as shown in fig. 1 and 8, the tin liquid treatment device 3 includes a sedimentation tank 32 and a standing forming tank 33, the sedimentation tank 32 is arranged at the bottom of the discharge port 11 of the electric smelting furnace 1, and an overflow port 321 is formed at the upper part of the sedimentation tank 32 and connected with the standing forming tank 33; the upper layer of the tin slag in the sedimentation tank 32 flows into the standing forming tank 33 through the overflow port 321, and the lower layer of the refined tin liquid is conveyed to the next working procedure through the bottom outlet; as shown in fig. 2, the electrode rod synchronous replacing device 2 comprises a supporting platform 25, and a tin concentrate transferring mechanism 29 and an electrode rod lifting mechanism 20 which are fixed on the supporting platform 25, wherein after a furnace body of the smelting electric furnace 1 passes through the supporting platform 25, the furnace top of the smelting electric furnace protrudes out of the supporting platform 25; the electrode bar lifting mechanisms 20 are symmetrically and vertically arranged around the furnace top; electrode bar inserting holes are symmetrically distributed on the furnace top surrounding the middle opening of the furnace top, and materials can be evenly dropped among the electrode bars when fed through the middle opening, so that the technical effect of evenly heating the materials is achieved; as shown in fig. 2 and 3, the feed end of the tin concentrate transfer mechanism 29 is transversely fixed on the supporting platform 25 through a bracket 291 thereof, and the blanking port 292 at the discharge end thereof is hermetically communicated with the middle opening of the furnace top; the electrode rod lifting mechanism 20 inserts the electrode rod 26 into an electrode rod insertion opening of the furnace top; the tin dross of the standing forming pool 33 is broken after forming, returns to the electric smelting furnace 1 for recycling through the tin concentrate transferring mechanism 29, and avoids excessive heat loss in the tin dross when the tin dross is returned in time. As shown in fig. 1 and 8, the sedimentation tanks 32 correspond to the electric smelting furnaces 1 one by one, the sedimentation tanks 32 are respectively arranged at two sides of the standing forming tank 3 in pairs and are symmetrically distributed, so that one standing forming tank can correspond to a plurality of pairs of electric smelting furnaces, the utilization rate of the standing forming tank is improved, the production efficiency is improved, a plurality of forming blind holes 331 for forming tin dross forming ingots 34 are distributed at the bottom of the standing forming tank 33, the forming blind holes 331 naturally divide the tin dross, and the formed tin dross is prevented from being secondarily divided again, so that the purposes of saving time and labor and rapidly recycling are achieved; the electrode bar synchronous replacing device 2 also comprises a tin concentrate lifting mechanism 28 which is generally an auger conveyor, wherein a bottom feeding port of the tin concentrate lifting mechanism 28 is communicated with a tin concentrate temporary storage bin, and an upper discharging port of the tin concentrate lifting mechanism 28 is communicated with a feeding end of a tin concentrate transferring mechanism 29; the electrode rod lifting mechanisms 20 are three, finished product characters are respectively arranged around the furnace top, the 3 electrode rod lifting mechanisms 20 arranged in the shape of a Chinese character 'pin' can install 3 electrode rods 26 and simultaneously serve as fixing devices of the electrode rods 26 to fix the electrode rods 26 on the furnace top, when the electrode rods 26 become waste electrode rods 26 after reaching the service life, the 3 electrode rod lifting mechanisms 20 lift the 3 waste electrode rods 26 simultaneously, the waste electrode rods 26 are disassembled, new electrode rods 26 are replaced at the same time and then inserted into electrode rod insertion openings, and the replacement efficiency is high, so that the 3 electrode rod lifting mechanisms 20 can serve the dual functions of fixing the electrode rods 26 after being replaced and achieve the technical effect of material balanced heating smelting under the synergistic effect of a screw conveyor blanking at the middle opening of the furnace top; the electrode rod lifting mechanism 20 comprises a vertical fixing frame 21, a lifting arm 22, a winch 23 and a pulley mechanism 24; the electrode rod lifting mechanism 20 is fixed on a supporting platform 25 through a vertical fixing frame 21. A plurality of tin concentrate lifting mechanisms 28 are not required to be arranged, and the purpose of feeding materials through the opening in the middle of the furnace top can be achieved by connecting one tin concentrate lifting mechanism 28 with one tin concentrate transferring mechanism 29; the purpose of uniformly heating the material can be achieved without arranging a plurality of electrode rod lifting mechanisms 20 and 3 electrode rod lifting mechanisms in a delta-shaped arrangement.

As shown in fig. 8 and 10, the device further comprises an exhaust gas and waste dust treatment device 4, wherein the exhaust gas and waste dust treatment device 4 comprises a reciprocating movable cover 5, an exhaust mechanism 6 and a dust collection cover 7 covered above the sedimentation tank 2; the reciprocating movable cover 5 covers the upper part of the standing forming pool 33, and the top of the reciprocating movable cover 5 is communicated with and fixed with a ventilation pipe 55; the exhaust mechanism 6 is transversely fixed between the two electric smelting furnaces 1 and comprises a transverse gas collecting main pipe 61 and an exhaust pipe 63, the gas collecting main pipe 61 is communicated with the vent pipe 55 and the exhaust pipe 63, and smoke is discharged outside for treatment through the exhaust mechanism, for example, the smoke is discharged into a bag type dust removal device or a sulfur removal device for treatment; the top of the dust hood 7 is externally connected with a vent pipe 71; a first gas collecting branch pipe 611 is arranged above the inner side of the sedimentation tank 2 and is respectively close to two ends of a gas collecting main pipe 61; the exhaust pipe 63 is connected to the middle of the gas collecting main pipe 61, and a gas collecting branch pipe two 612 and a gas collecting branch pipe three 613 are respectively arranged between each gas collecting branch pipe one 611 and the exhaust pipe 63, so that the full-closed management of discharging is realized, and the environment pollution caused by smoke overflow is avoided.

The processing technology of the tin concentrate recyclable smelting system comprises the following steps:

s1, synchronously replacing electrode bars: synchronously replacing the electrode bar 26 at the top of the smelting electric furnace 1 through the electrode bar synchronous replacing device 2;

s2, discharging: discharging the fluid smelted in the smelting electric furnace 1 into a settling tank 2 for standing, opening an overflow port 21, enabling the upper-layer tin slag to flow into a standing forming tank 3, and conveying the lower-layer refined tin liquid to other processes through a bottom outlet;

s3, standing: spreading the tin slag to the forming blind holes 31, standing and forming;

s4, returning: the tin slag is crushed after being formed and returns to the smelting electric furnace 1 for recycling through a tin concentrate transferring mechanism 29;

s5, exhaust: in the forming process, the exhaust pipe 63 is opened to discharge the smoke therein, for example, to a bag-type dust collector or a desulfurizing device for treatment, so as to prevent the smoke from polluting the environment.

Example 2

The tin concentrate recyclable smelting system of the embodiment has the same basic structure as the embodiment 1, and is different and improved in that: the forming blind hole 331 is in a frustum or cone shape, the formed tin slag forming ingot is in a corresponding frustum or cone shape, the forming blind hole is similar to a mold, the mold is convenient to remove, and the handle rod 341 is preset in the forming blind hole, so that the tin slag forming ingot can be conveniently removed from the forming blind hole after being formed; as shown in fig. 4, the vertical fixing frame 21 includes a vertical pillar 212 and a pillar 213 inside the pillar 212, and further includes a boom 211 transversely and fixedly connected to the top ends of the pillar 212 and the pillar 213; the support post 212 and the support post 213 are both fixedly connected to the support platform 25; one end of the lifting arm 22 is fixedly connected with a guide frame 221 which is sleeved on the support guide post 213 and is connected with the electrode bar fixing piece 222 in a sliding way, and the other end of the lifting arm is fixedly connected with the electrode bar fixing piece 222; the pulley mechanism 24 comprises a first fixed pulley 241, a second fixed pulley 242, a third fixed pulley 243 and a fourth fixed pulley 244 which is arranged in parallel with the third fixed pulley 243 on the upper surface of the crane boom 211, and further comprises a first movable pulley 246 fixed on the upper surface of the lifting arm 22, and a first through hole 2111 and a second through hole 2112 are respectively formed in the crane boom 211 close to the second fixed pulley 242 and the third fixed pulley 243; the winch 23 is fixed at the outer side of the lower part of the pillar 212, the free end of the traction rope 231 of the winch sequentially bypasses the first fixed pulley 241, the fourth fixed pulley 244, the second through hole 2112, the first movable pulley 246, the second through hole 2112, the third fixed pulley 243, the second fixed pulley 242 and the first through hole 2111, and then is fixedly connected to the guide frame 221, and is fixed on the supporting platform through a stable vertical fixing frame, the vertical guide type lifting guide pillar is matched with the guide frame, and the lifting arm of the winch is matched with the fixed pulley and the movable pulley in the pulley mechanism, so that the technical effects of accurately aligning the mounting opening to mount the electrode rod and improving the replacement efficiency are achieved.

Example 3

The basic structure of the tin concentrate recyclable smelting system is the same as that of the tin concentrate recyclable smelting system in the embodiment 2, and the differences and improvements are as follows: as shown in fig. 6, the pulley mechanism 24 further includes a fifth fixed pulley 245 adjacent to the second through hole 2112 and a second movable pulley 247 juxtaposed to the first movable pulley 246 on the upper surface of the lift arm 22, the fifth fixed pulley 245 and the third fixed pulley 243 being arranged on both sides of the second through hole 2112; the free end of the traction rope 231 sequentially bypasses the first fixed pulley 241, the fourth fixed pulley 244, passes through the second through hole 2112 downwards, bypasses the first movable pulley 246, passes through the second through hole 2112 upwards, bypasses the fifth fixed pulley 245, passes through the second through hole 2112 downwards, bypasses the second movable pulley 247, passes through the second through hole 2112 upwards, bypasses the third fixed pulley 243 and the second fixed pulley 242, passes through the first through hole 2111 downwards and is fixedly connected to the guide frame 221, and the double-acting pulleys cooperate to save more labor in operation and effectively improve the lifting weight. As shown in fig. 12 and 13, the handle bar 341 has a "s" shaped longitudinal cross section; the forming blind holes 331 are the same in size and are uniformly distributed in the standing forming pool 33, so that the combination degree of a tin dross forming ingot and the handle rod during tin dross forming is improved, and when the tin dross forming ingot is in a frustum shape, the length of a cross rod at the bottom of the handle rod can be the same as or slightly smaller than the diameter of a bottom circle of the frustum, and the combination degree is higher; the wheel directions of the fixed pulley five 245 and the fixed pulley three 243 are mutually vertical, so that mutual interference caused by 4 strands of traction ropes formed after winding can be effectively avoided.

Example 4

The basic structure of the tin concentrate recyclable smelting system is the same as that of the tin concentrate recyclable smelting system in the embodiment 3, and the differences and improvements are as follows: as shown in fig. 14, the handle bar 341 is a triangular frame, so that the structure is relatively stable, and the handle bar can be effectively prevented from being knocked down when the tin slag fluid flows into the forming blind hole after the handle bar is preset in the forming blind hole; the electrode rod fixing member 222 is a single-slit or double-slit half sleeve, and can be disassembled, thereby facilitating the assembly and disassembly of the electrode rod 26. The electrode rod 26 is held tightly by the half shells and is ready to be lifted as shown in figure 7. The electrode bar is convenient to mount and dismount; the bottom end face of the half sleeve is fixedly connected with a sealing ring 224, and mine dust is prevented from overflowing. The front side wall and the rear side wall of the reciprocating movable cover 5 are fixed with sliding blocks 51, and the bottom of the reciprocating movable cover 5 sinks into the bottom of the standing forming pool 33 and is close to the forming blind hole 331; a guide rail 332 matched with the sliding block 51 is fixed on the tank edge of the standing forming tank 33, the reciprocating movable cover plays a role in sealing and scraping materials in the reciprocating motion process on the guide rail, namely smoke dust generated in the standing process is sealed in the reciprocating movable cover and then is discharged outside through a ventilation pipe at the top, and the tin slag in the forming blind hole is cooled and formed in the discharging process; a rolling rail member 223 in rolling connection with the support guide column 213 is fixed in the guide frame 221, so that the guide frame drives the lifting arm to ascend and descend from sliding to rolling, and the lifting arm is lifted and descended more conveniently and efficiently.

The tin concentrate circulated smelting system of this embodiment, through the setting of the reciprocating movable cover 5 of special construction, reciprocating movable cover 5 need not to design into the full coverage formula cover and is standing still forming pond 33 top, after all, under general condition, the smelting electric stove 1 of the forming pond 33 both sides of standing still can not ejection of compact simultaneously, and the ejection of compact is usually in turn, and reciprocating movable cover 35 only need move to the ejection of compact the forming pond 33 top of standing still of smelting electric stove 1 department can.

The processing technology of the tin concentrate recyclable smelting system comprises the following steps:

s0, synchronously replacing electrode bars: the electrode bar 26 is synchronously replaced through the electrode bar synchronous replacing device 2 at the top of the smelting electric furnace 1;

s1, discharging in a left smelting electric furnace: after the tin concentrate is smelted in the left smelting electric furnace 1, covering the dust collecting hood 7 on the sedimentation tank 32, and butting the gas collecting branch pipe I611 with the vent pipe 71; discharging fluid of the left electric smelting furnace 1 into a settling pond 32, standing, opening an overflow port 321, allowing tin slag on the upper layer of the settling pond 32 to flow into a standing forming pond 33, and conveying refined tin liquid on the lower layer to other procedures through a bottom outlet; the reciprocating movable hood 5 is moved leftwards and is covered at the left part of the standing forming pool 33, the ventilation pipe 55 is butted with a gas collecting branch pipe II 612, and the full-closed management is carried out on the discharged materials, so that the environment is prevented from being polluted by overflow;

s2, standing: in the process of moving the reciprocating movable cover 5, the tin slag can be scraped and distributed to the forming blind hole 331 for standing and forming; in the forming process, the exhaust pipe 63 is opened, and the smoke dust in the exhaust pipe is discharged to the bag-type dust collector; after no smoke dust exists in the reciprocating movable cover 5, the ventilation opening 52 is opened to accelerate cooling forming;

s3, discharging by a right smelting electric furnace: after the tin concentrate is smelted in the right smelting electric furnace 1, covering the dust collecting hood 7 of the right smelting electric furnace 1 on the sedimentation tank 32 of the right smelting electric furnace 1, and butting a gas collecting branch pipe I611 at the side of the right smelting electric furnace 1 with the vent pipe 71; discharging the fluid of the right electric smelting furnace 1 into the corresponding sedimentation tank 32, standing, opening the overflow port 321, allowing the tin slag on the upper layer of the corresponding sedimentation tank 32 to flow into the standing forming tank 33, and conveying the refined tin liquid on the lower layer to other procedures through the bottom outlet; the reciprocating movable hood 5 moves rightwards, the hood is arranged at the right part of the standing forming pool 33, the ventilation pipe 55 is in butt joint with the gas collecting branch pipe III 613, and full-closed management is carried out on discharging, so that the environment is prevented from being polluted by overflow;

s4, standing: in the process of moving the reciprocating movable cover 5, the tin slag can be scraped and distributed to the forming blind hole 331 for standing and forming; in the forming process, the exhaust pipe 63 is opened, and the smoke dust in the exhaust pipe is discharged to the bag-type dust collector; after no smoke dust exists in the reciprocating movable cover 5, the ventilation opening 52 is opened to accelerate cooling forming;

s5, demolding: lifting all the tin dross forming ingots 34 formed in the standing forming pool 33 out of the forming blind holes 331 through the handle rods 341, wherein the tin dross forming ingots 34 are shown in fig. 11;

s6, returning: the tin slag is crushed after being formed, and the collected smoke dust is returned to the electric smelting furnace 1 for recycling through the tin concentrate transferring mechanism 29.

In the tin concentrate circulating smelting system of the embodiment, the reciprocating movable hood 5 reciprocates on the standing forming pool 3, and the ventilation pipe 55 is in alternate butt joint with the gas collecting branch pipe II 612 and the gas collecting branch pipe III 613, so that the separation of tin slag and tin liquid in the smelting electric furnace 1 at two sides of the standing forming pool 3 and the formation of the separated tin slag in the standing forming pool 3 are realized.

Example 5

The basic structure of the tin concentrate recyclable smelting system is the same as that of the tin concentrate recyclable smelting system in the embodiment 4, and the differences and improvements are as follows: as shown in fig. 5, the rolling rail members 223 include a connecting shaft 2232 connecting the two opposite frame plates of the guide frame 221 and rotating wheels 2231 sleeved at the two ends of the connecting shaft 2232 in the guide frame 221, so as to convert sliding into rolling, which is time-saving and labor-saving, and the rolling rail members 23 are even and symmetrically distributed in the guide frame 21; the left side wall and the right side wall of the reciprocating movable cover 5 are provided with ventilation openings 52, the ventilation openings 52 are opened and closed through sliding doors 53 which are arranged in a matched mode, and after smoke dust treatment is finished, cold air is sucked to accelerate the tin dross to be formed into tin dross forming ingots; as shown in fig. 9, the bottom of the slide 4455 is rotatably connected with a roller 56 to convert sliding into rolling, which saves time and labor; as shown in fig. 10, the bottom of the dust hood 7 is symmetrically fixed with elastic mechanisms 72, so that a certain margin is provided when the top vent pipe is in butt joint with the gas collecting branch pipe, and the universality of the dust hood is improved. The central section of the runner 2231 is step-shaped, the section is T-shaped, and the step, that is, the T-shaped head is clamped at the side of the guide post 2213, so that the runner rolls and plays a role of guiding, thereby preventing the electrode bar 26 from deviating from the mounting hole during installation or disassembly.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the present invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solutions, but shall fall within the protection scope of the present invention.

Claims (9)

1. A tin concentrate recyclable smelting system is characterized in that: including smelting electric stove (1), smelting electrode bar in electric stove (1) stove top change device (2) and smelting electric stove (1) smelt tin liquid processing apparatus (3) after the ejection of compact, wherein:

the tin liquid treatment device (3) comprises a sedimentation tank (32) and a standing forming tank (33), the sedimentation tank (32) is arranged at the bottom of a discharge hole of the smelting electric furnace (1), and an overflow port (321) is formed in the upper part of the sedimentation tank (32) and connected with the standing forming tank (33); the tin slag on the upper layer of the sedimentation tank (32) flows into a standing forming tank (33) through an overflow port (321) of the sedimentation tank, and the refined tin liquid on the lower layer is conveyed to the next working procedure through a bottom outlet of the sedimentation tank;

the electrode bar synchronous replacement device (2) comprises a supporting platform (25), and a tin concentrate transfer mechanism (29) and an electrode bar lifting mechanism (20) which are fixed on the supporting platform (25), wherein after a furnace body of the smelting electric furnace (1) penetrates through the supporting platform (25), the furnace top of the smelting electric furnace protrudes out of the supporting platform (25); the electrode bar lifting mechanisms (20) are symmetrically and vertically arranged around the furnace top; symmetrically distributed electrode bar inserting openings are also formed in the furnace top surrounding the opening in the middle of the furnace top; the feed end of the tin concentrate transfer mechanism (29) is transversely fixed on the supporting platform (25) through a support (291) of the tin concentrate transfer mechanism, and a blanking port (292) at the discharge end of the tin concentrate transfer mechanism is communicated with the middle opening of the furnace top in a sealing manner; the electrode rod lifting mechanism (20) inserts the electrode rod (26) into an electrode rod insertion opening of the furnace top;

and the tin slag in the standing forming pool (33) is broken after forming and returns to the smelting electric furnace (1) for recycling through the tin concentrate transferring mechanism (29).

2. The tin concentrate recyclable smelting system of claim 1, characterized in that: the settling ponds (32) correspond to the smelting electric furnaces (1) one by one, the settling ponds (32) are arranged at two sides of the standing forming pond (33) in rows and are symmetrically distributed in pairs, and a plurality of forming blind holes (331) for forming tin slag forming ingots (34) are distributed at the bottom of the standing forming pond (33);

the electrode rod synchronous replacing device (2) further comprises a tin concentrate lifting mechanism (28), a bottom feeding hole of the tin concentrate lifting mechanism (28) is communicated with a tin concentrate temporary storage bin, and an upper discharging hole of the tin concentrate lifting mechanism is communicated with a feeding end of a tin concentrate transferring mechanism (29); the number of the electrode rod lifting mechanisms (20) is three, and the finished product is distributed around the furnace top; the electrode rod lifting mechanism (20) comprises a vertical fixing frame (21), a lifting arm (22), a winch (23) and a pulley mechanism (24); the electrode rod lifting mechanism (20) is fixed on the supporting platform (25) through a vertical fixing frame (21).

3. The tin concentrate recyclable smelting system of claim 2, characterized in that: the forming blind hole (331) is in a frustum shape or a cone shape, and a handle rod (341) is preset in the forming blind hole;

the vertical fixing frame (21) comprises a vertical support column (212) and a support guide column (213) on the inner side of the support column (212), and further comprises a crane boom (211) which is transversely and fixedly connected to the top ends of the support column (212) and the support guide column (213); the support column (212) and the support guide column (213) are both fixedly connected to the supporting platform (25);

one end of the lifting arm (22) is fixedly connected with a guide frame (221) which is sleeved on the support guide post (213) and is connected with the support guide post in a sliding way, and the other end of the lifting arm is fixedly connected with an electrode bar fixing piece (222);

the pulley mechanism (24) comprises a first fixed pulley (241), a second fixed pulley (242), a third fixed pulley (243) and a fourth fixed pulley (244) which is parallel to the third fixed pulley (243) which are sequentially arranged and fixed on the upper surface of the crane boom (211), and further comprises a first movable pulley (246) which is fixed on the upper surface of the lifting arm (22), and a first through hole (2111) and a second through hole (2112) are respectively drilled in the crane boom (211) close to the second fixed pulley (242) and the third fixed pulley (243);

the winch (23) is fixed on the outer side of the lower portion of the support column (212), and the free end of the traction rope (231) of the winch sequentially bypasses the first fixed pulley (241), the fourth fixed pulley (244), downwards passes through the second through hole (2112), bypasses the first movable pulley (246), upwards passes through the second through hole (2112), further bypasses the third fixed pulley (243), the second fixed pulley (242) and downwards passes through the first through hole (2111), and then is fixedly connected to the guide frame (221).

4. The tin concentrate recyclable smelting system of claim 3, characterized in that: the pulley mechanism (24) also comprises a fixed pulley five (245) close to the through hole two (2112) and a movable pulley two (247) which is arranged on the upper surface of the lifting arm (22) in parallel with the movable pulley one (246), and the fixed pulley five (245) and the fixed pulley three (243) are arranged on two sides of the through hole two (2112) respectively; the free end of the traction rope (231) sequentially rounds a first fixed pulley (241), a fourth fixed pulley (244), downwards passes through a second through hole (2112), rounds a first movable pulley (246), upwards passes through a second through hole (2112), rounds a fifth fixed pulley (245), downwards passes through the second through hole (2112), rounds a second movable pulley (247), upwards passes through the second through hole (2112), rounds a third fixed pulley (243), passes a second fixed pulley (242) and downwards passes through the first through hole (2111), and then is fixedly connected to the guide frame (221).

5. The tin concentrate recyclable smelting system of claim 4, characterized in that: the longitudinal section of the handle rod (341) is shaped like a Chinese character 'shi'; the molding blind holes (331) have the same size and are uniformly distributed in the standing molding pool (33); the wheel directions of the fixed pulley five (245) and the fixed pulley three (243) are mutually vertical.

6. The tin concentrate recyclable smelting system of claim 4, characterized in that: the handle rod (341) is a tripod; the electrode bar fixing part (222) is a half sleeve with single or double seams; and the bottom end surface of the half sleeve is fixedly connected with a sealing ring (224).

7. The recycling smelting system for tin concentrate according to any one of claims 3 to 6, characterized in that: the device is characterized by also comprising a waste gas and waste dust treatment device (4), wherein the waste gas and waste dust treatment device (4) comprises a reciprocating movable cover (5), an exhaust mechanism and a dust hood covered above the sedimentation tank (32); the reciprocating movable cover (5) covers the upper part of the standing forming pool (33), and the top of the reciprocating movable cover (5) is communicated with and fixed with a ventilation pipe (55); the exhaust mechanism is transversely fixed between the two electric smelting furnaces (1) and comprises a transverse gas collecting main pipe (61) and an exhaust pipe (63), and the gas collecting main pipe (61) is communicated with the ventilation pipe (55) and the exhaust pipe (63); the top of the vent pipe is externally connected with a vent pipe (71); a first gas collecting branch pipe (611) is arranged above the inner side of the sedimentation tank (32) and respectively close to two ends of the gas collecting main pipe (61) on the gas collecting main pipe (61); the exhaust pipe (63) is connected to the middle of the gas collecting main pipe (61), and a gas collecting branch pipe II (612) and a gas collecting branch pipe III (613) are respectively arranged between each gas collecting branch pipe I (611) and the exhaust pipe (63).

8. The tin concentrate recyclable smelting system of claim 7, characterized in that: sliding blocks (51) are fixed on the front side wall and the rear side wall of the reciprocating movable cover (5), and the bottom of the reciprocating movable cover (5) is sunk into the bottom of the standing forming pool (33) and is close to the forming blind hole (331); a guide rail (332) matched with the sliding block (51) is fixed on the tank edge of the standing molding tank (33);

a rolling rail piece (223) which is in rolling connection with the support guide post (213) is fixed in the guide frame (221).

9. The recyclable tin concentrate smelting system of claim 8, characterized in that: the rolling rail piece (223) comprises a connecting shaft (2232) which is arranged in the guide frame (221) and is connected with two frame plates opposite to the guide frame (221), and rotating wheels (2231) sleeved at two ends of the connecting shaft (2232); the left side wall and the right side wall of the reciprocating movable cover (5) are provided with ventilation openings (52), and the ventilation openings (52) are opened and closed through sliding doors (53) which are arranged in a matched mode; the bottom of the sliding block (51) is rotatably connected with a roller (56); elastic mechanisms (72) are symmetrically fixed at the bottom of the dust collection cover.

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