CN114058868B - Transfer furnace device for secondary lead smelting reduction lead refining - Google Patents

Abstract

The invention relates to the technical field of secondary lead, in particular to a transfer furnace device for refining secondary lead smelting reduction lead, which comprises a fixing frame, a middle converter and a mounting frame, wherein the front side of the middle converter is communicated with a feeding pipe, the front side of the feeding pipe is provided with a material guide mechanism, the top end of the middle converter is provided with an opening, and the top of the opening is provided with a sealing component.

Description

Transfer furnace device for secondary lead smelting reduction lead refining

Technical Field

The invention relates to the technical field of secondary lead, in particular to a transfer furnace device for refining secondary lead smelting reduction lead.

Background

The secondary lead is smelted by fire method, the used equipment is reverberatory furnace, blast furnace, rotary kiln, short kiln and electric furnace, the smelting temperature is 1350-1500 ℃, and the lead recovery rate is 85-95%. At present, in the process of smelting and refining the secondary lead, the reduced lead needs to be cast and then transported, and then the cast ingot needs to be remelted, so that the whole treatment process needs to consume a large amount of time, the energy cost in the treatment process is high, and the continuous production capacity of the secondary lead is poor.

In view of the above technical drawbacks, a solution is proposed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a transfer furnace device for refining secondary lead smelting reduction lead, which solves the problems that in the prior process of refining the secondary lead smelting reduction lead, the reduction lead needs to be cast and then transferred, and then the cast ingot needs to be remelted, so that the whole treatment process is time-consuming, high in cost consumption and poor in continuous production capacity.

(II) technical scheme

In order to realize the purpose, the invention is realized by the following technical scheme: the transfer furnace device for refining the secondary lead by smelting and reducing the lead comprises a fixing frame, a middle converter and a mounting frame, wherein the middle converter is arranged inside the fixing frame, the bottom of the mounting frame is fixedly connected with the top of the fixing frame, a discharging pipe is arranged at the bottom of the middle converter, a lead pump is arranged at one end of the discharging pipe, the front of the middle converter is communicated with a feeding pipe, a material guiding mechanism is arranged on the front of the feeding pipe, a through hole is formed in the top end of the middle converter, and a sealing assembly is arranged at the top of the through hole;

the material guiding mechanism comprises a connecting frame, one side of the connecting frame is fixedly connected with one side of the fixing frame, a material guiding frame is arranged inside the connecting frame, a chute is arranged inside the material guiding frame, a connecting pipe is arranged on one side of the material guiding frame, which is close to the fixing frame, and the inside of the connecting pipe is communicated with the inside of the feeding pipe;

the sealing component comprises a movable frame, the movable frame is arranged inside the mounting frame, a connecting cover is arranged inside the movable frame, a sealing cover is arranged inside the connecting cover in a sliding mode, a connecting plate is arranged at the top of the connecting cover, a flue gas pipe is arranged at the top of the sealing cover, the bottom of the flue gas pipe extends to the bottom of the sealing cover, connecting blocks are arranged on the two sides of the top of the connecting plate, a movable push rod is arranged in the middle of the top of the connecting plate, and the bottom of the movable push rod is fixedly connected with the top of the sealing cover.

Preferably, a striker plate is arranged on one side, close to the connecting pipe, inside the material guide frame, a sliding groove matched with the striker plate is formed in the top of the material guide frame, and the bottom of the striker plate is connected with the sliding groove in a sliding mode.

Preferably, the both sides of adjustable shelf inner wall all slide and are provided with the movable block, and the both sides of adjustable shelf inner wall all set up with movable block matched with activity groove, two one side of movable block respectively with the inside sliding connection in two activity grooves, and two relative one sides of movable block respectively with the both sides fixed connection who is connected the lid.

Preferably, a truss is arranged above the mounting frame, and a linear sliding assembly is arranged inside the truss.

Preferably, one end of the flue gas pipe is provided with a gas collecting pump, and an air outlet of the gas collecting pump is provided with a dust removing cloth pipe.

Preferably, the heat preservation assembly is arranged inside the middle converter and comprises a heat conduction spiral pipe, a fire resistant layer is arranged inside the middle converter, a heat preservation layer is arranged on the circumferential surface of the fire resistant layer, the heat conduction spiral pipe is arranged on the circumferential surface of the heat preservation layer, two flow guide pipes are symmetrically arranged on the front surface of the middle converter, and one ends of the two flow guide pipes are communicated with the inside of the heat conduction spiral pipe.

Preferably, the inside both sides of guide frame all are provided with the heat exchange tube, and the one end of two heat exchange tubes all communicates with the one end of honeycomb duct.

Preferably, the use method of the converter device for refining the secondary lead smelting reduction lead specifically comprises the following steps:

step one, a truss is arranged above an installation frame, a linear sliding assembly is arranged inside the truss, a connecting cover is driven by the truss to slide to the upper side of a transfer furnace in the movable frame, then a movable push rod in the middle of a connecting plate is pressed downwards, a sealing cover is pushed into a through hole in the top of the transfer furnace from the inside of the connecting cover by the bottom end of the movable push rod, and sealing treatment of the inside of the transfer furnace is completed;

step two, producing liquid reduced lead by using the oxygen-enriched side blowing furnace, introducing the liquid reduced lead into a chute in a material guide frame, introducing the liquid reduced lead into a transfer furnace through the chute, a connecting pipe and a feeding pipe, and finally stopping feeding the liquid reduced lead by pushing a material baffle plate into the material guide frame along the chute;

absorbing heat in the material guide frame by a heat exchange medium in the heat exchange tube in the process of feeding the liquid reduced lead, and then enabling the heat exchange medium to enter a heat conduction spiral tube through a flow guide tube, wherein the heat exchanged by the heat exchange medium in the heat conduction spiral tube is used for heat preservation treatment of the interior of the converter;

step four, in the process of feeding the liquid reduced lead, the liquid reduced lead generates lead-containing flue gas in the transfer furnace, and the lead-containing flue gas is connected with a flue gas pipe through a gas collecting pump to extract the flue gas in the transfer furnace;

and step five, connecting the lead pump with the discharge pipe, and pumping the liquid reduced lead in the transfer furnace into a refining pot.

(III) advantageous effects

The invention provides a transfer furnace device for refining secondary lead smelting reduction lead. Compared with the prior art, the method has the following beneficial effects:

(1) The liquid-state reduced lead is guided into the chute in the guide frame by arranging the guide frame on one side of the transfer furnace and utilizing the oxygen-enriched side blowing furnace to produce the liquid-state reduced lead, the liquid-state reduced lead enters the transfer furnace through the chute, the connecting pipe and the feeding pipe to complete feeding treatment of the liquid-state reduced lead, the liquid-state reduced lead is stored in the transfer furnace in a heat preservation manner, and finally the liquid-state reduced lead in the transfer furnace is pumped into the refining pot through the lead pump, so that the processes of ingot casting, transferring and remelting of the reduced lead are reduced, the process flow is shortened, and the production cost is effectively reduced.

(2) Set up seal assembly through the top at the transfer furnace, set up the truss at the top of mounting bracket simultaneously, the sealed top of covering centering converter of drive that can be nimble seals to still be provided with the flue gas pipe at the top of sealed lid, can extract the leaded flue gas that liquid reduction lead produced in the transfer furnace inside pay-off process, avoid the inside flue gas loss of transfer furnace to come out and cause environmental pollution.

(3) Be provided with the heat exchange tube through the inside at the guide frame, liquid reduction lead sends into the transfer furnace through the inside chute of guide frame, and the heat transfer medium in the heat exchange tube absorbs the heat in the guide frame, and during heat transfer medium sent into the heat conduction spiral pipe through the honeycomb duct after that, the heat that utilizes the heat transfer medium exchange through the heat conduction spiral pipe is used for the inside heat preservation of transfer furnace to handle, has avoided waste of heat in the guide frame, the utilization ratio of the energy.

Drawings

FIG. 1 is a schematic view of a structure of a transfer furnace device for refining secondary lead smelting reduction lead according to the present invention;

FIG. 2 is a top view of the internal structure of the converter and the connecting frame according to the present invention;

FIG. 3 is a schematic view of a material guiding frame and a connecting tube structure according to the present invention;

FIG. 4 is a top view of the mounting frame and the movable frame structure of the present invention;

FIG. 5 is a cross-sectional view of a connecting cap and port structure of the present invention;

FIG. 6 is a plan view of the internal structure of the converter of the present invention.

In the figure, 10, a fixing frame; 20. a medium converter; 30. a mounting frame; 40. a discharge pipe; 50. a feed pipe; 60. a port; 101. a connecting frame; 102. a material guide frame; 103. a chute; 104. a connecting pipe; 105. a striker plate; 106. a chute; 201. a movable frame; 202. a connecting cover; 203. a sealing cover; 204. a connecting plate; 205. a flue gas pipe; 206. connecting blocks; 207. a movable push rod; 208. a movable block; 209. a movable groove; 301. a heat conducting spiral tube; 302. a refractory layer; 303. a heat-insulating layer; 304. a flow guide pipe; 305. a heat exchange tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-6, a transfer furnace device for refining secondary lead smelting and reducing lead includes a fixed frame 10, a transfer furnace 20 and a mounting frame 30, wherein a liquid level observation port is disposed on the peripheral surface of the transfer furnace 20 for conveniently detecting the liquid level in the transfer furnace 20, and the liquid level observation port is not shown in the drawings. The middle converter 20 is arranged inside the fixed frame 10, the bottom of the fixed frame 30 is fixedly connected with the top of the fixed frame 10, the bottom of the middle converter 20 is provided with a discharge pipe 40, one end of the discharge pipe 40 is provided with a lead pump, and liquid reduced lead in the middle converter 20 is pumped into the refining pot through the lead pump, so that the procedures of reduced lead ingot casting, transferring and remelting are reduced, the process flow is shortened, and the production cost is effectively reduced; the front surface of the middle converter 20 is communicated with a feeding pipe 50, the front surface of the feeding pipe 50 is provided with a material guiding mechanism, the top end of the middle converter 20 is provided with a through hole 60, and the top of the through hole 60 is provided with a sealing assembly;

the material guiding mechanism comprises a connecting frame 101, one side of the connecting frame 101 is fixedly connected with one side of the fixing frame 10, a material guiding frame 102 is arranged inside the connecting frame 101, a chute 103 is formed inside the material guiding frame 102, a connecting pipe 104 is arranged on one side, close to the fixing frame 10, of the material guiding frame 102, the inside of the connecting pipe 104 is communicated with the inside of the feeding pipe 50, and the chute 103 inside the material guiding frame 102 is matched with the connecting pipe 104 to achieve sealed conveying of liquid lead. A material baffle 105 is arranged on one side, close to the connecting pipe 104, in the material guide frame 102, a sliding groove 106 matched with the material baffle 105 is formed in the top of the material guide frame 102, and the bottom of the material baffle 105 is in sliding connection with the inside of the sliding groove 106;

when the device is used, the liquid-state reduced lead is produced by the oxygen-enriched side blowing furnace through the material guide frame 102 arranged inside the connecting frame 101 and the connecting pipe 104 arranged on one side of the material guide frame 102, the liquid-state reduced lead is guided into the chute 103 inside the material guide frame 102, the liquid-state reduced lead enters the converter 20 through the chute 103, the connecting pipe 104 and the feeding pipe 50, the feeding processing of the liquid-state reduced lead is completed, finally, the material baffle plate 105 is pushed to the inside of the material guide frame 102 along the chute 106, the feeding of the liquid-state reduced lead is stopped, and the feeding process is stable.

The sealing assembly comprises a movable frame 201, the movable frame 201 is arranged inside the mounting frame 30, a connecting cover 202 is arranged inside the movable frame 201, a sealing cover 203 is arranged inside the connecting cover 202 in a sliding mode, a connecting plate 204 is arranged on the top of the connecting cover 202, a flue gas pipe 205 is arranged on the top of the sealing cover 203, the bottom end of the flue gas pipe 205 extends to the bottom of the sealing cover 203, connecting blocks 206 are arranged on two sides of the top of the connecting plate 204, a movable push rod 207 is arranged in the middle of the top of the connecting plate 204, and the bottom end of the movable push rod 207 is fixedly connected with the top of the sealing cover 203;

when the gas-fired boiler is used, a truss is arranged above the mounting frame 30, and a linear sliding assembly is arranged inside the truss, wherein the linear sliding assembly is composed of a screw rod and a sliding block arranged on the surface of the screw rod in a threaded manner, the truss is used for driving the connecting cover 202 to slide to the upper side of the converter 20 in the movable frame 201, then the movable push rod 207 in the middle of the connecting plate 204 is pressed downwards, the sealing cover 203 is pushed into the through hole 60 in the top of the converter 20 from the inside of the connecting cover 202 by the bottom end of the movable push rod 207, the sealing treatment of the inside of the converter 20 is completed, meanwhile, a gas collecting pump is communicated with the top end of the flue gas pipe 205, the flue gas in the converter 20 is extracted by the gas collecting pump, and the environmental pollution caused by the escape of the flue gas in the converter 20 is avoided.

The two sides of the inner wall of the movable frame 201 are both provided with movable blocks 208 in a sliding manner, the two sides of the inner wall of the movable frame 201 are both provided with movable grooves 209 matched with the movable blocks 208, one side of each of the two movable blocks 208 is respectively connected with the inner parts of the two movable grooves 209 in a sliding manner, and the opposite side of each of the two movable blocks 208 is respectively fixedly connected with the two sides of the connecting cover 202;

in the process of driving the connecting cover 202 to slide through the linear sliding component in the truss, the movable blocks 208 on the two sides of the connecting cover 202 slide in the two movable grooves 209 respectively, so that the stability of the connecting cover 202 in the sliding process is ensured.

Example 2:

in the invention, a heat insulation component is arranged inside a middle converter 20, the heat insulation component comprises a heat conduction spiral pipe 301, a fire resistant layer 302 is arranged inside the middle converter 20, a heat insulation layer 303 is arranged on the peripheral surface of the fire resistant layer 302, the heat conduction spiral pipe 301 is arranged on the peripheral surface of the heat insulation layer 303, two flow guide pipes 304 are symmetrically arranged on the front surface of the middle converter 20, one ends of the two flow guide pipes 304 are communicated with the inside of the heat conduction spiral pipe 301, heat exchange pipes 305 are arranged on two sides inside a material guide frame 102, and one ends of the two heat exchange pipes 305 are communicated with one ends of the flow guide pipes 304;

when the heat-insulation material guide frame is used, liquid reduced lead is conveyed into the middle converter 20 through the chute 103 in the material guide frame 102, heat in the material guide frame 102 is absorbed by heat exchange media in the heat exchange tubes 305, then the heat exchange media is conveyed into the heat-conduction spiral tube 301 through the guide tube 304, and heat exchanged by the heat exchange media is used for heat insulation treatment in the middle converter 20 through the heat-conduction spiral tube 301, so that waste of heat in the material guide frame 102 is avoided, and the utilization rate of energy is improved.

Example 3:

referring to fig. 1-6, the invention also discloses a use method of the transfer furnace device for refining the secondary lead smelting reduction lead, which comprises the following steps:

step one, a truss is arranged above the mounting frame 30, a linear sliding assembly is arranged inside the truss, the truss drives the connecting cover 202 to slide to the upper side of the intermediate converter 20 in the movable frame 201, then a movable push rod 207 in the middle of the connecting plate 204 is pressed downwards, the bottom end of the movable push rod 207 pushes the sealing cover 203 into a through hole 60 in the top of the intermediate converter 20 from the inside of the connecting cover 202, and sealing treatment on the inside of the intermediate converter 20 is completed;

step two, producing liquid reduced lead by using the oxygen-enriched side-blown converter, introducing the liquid reduced lead into a chute 103 inside a material guide frame 102, allowing the liquid reduced lead to enter a middle converter 20 through the chute 103, a connecting pipe 104 and a feeding pipe 50, and finally stopping feeding the liquid reduced lead by pushing a material baffle 105 into the material guide frame 102 along a chute 106;

step three, in the process of feeding the liquid reduced lead, the heat exchange medium in the heat exchange tube 305 absorbs the heat in the material guide frame 102, then the heat exchange medium enters the heat conduction spiral tube 301 through the flow guide tube 304, and the heat exchanged by the heat exchange medium in the heat conduction spiral tube 301 is used for heat preservation treatment of the interior of the intermediate converter 20;

step four, in the process of feeding the liquid reduced lead, the liquid reduced lead generates lead-containing flue gas in the transfer furnace 20, and the lead-containing flue gas is connected with the flue gas pipe 205 through the gas collecting pump to extract the flue gas in the transfer furnace 20;

and step five, connecting the lead pump with the discharge pipe 40, and pumping the liquid reduced lead in the transfer furnace 20 into a refining pot.

And those not described in detail in this specification are well within the skill of those in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a secondary lead smelts transfer stove device of concise usefulness of reduction lead, includes mount (10), transfer stove (20) and mounting bracket (30), well converter (20) set up in the inside of mount (10), and the top fixed connection of the bottom of mounting bracket (30) and mount (10), its characterized in that: a discharge pipe (40) is arranged at the bottom of the middle converter (20), a lead pump is arranged at one end of the discharge pipe (40), the front surface of the middle converter (20) is communicated with a feed pipe (50), a material guide mechanism is arranged on the front surface of the feed pipe (50), a through opening (60) is arranged at the top end of the middle converter (20), and a sealing assembly is arranged at the top of the through opening (60);

the material guiding mechanism comprises a connecting frame (101), one side of the connecting frame (101) is fixedly connected with one side of the fixing frame (10), a material guiding frame (102) is arranged inside the connecting frame (101), a chute (103) is formed inside the material guiding frame (102), a connecting pipe (104) is arranged on one side, close to the fixing frame (10), of the material guiding frame (102), and the inside of the connecting pipe (104) is communicated with the inside of the feeding pipe (50);

the sealing assembly comprises a movable frame (201), the movable frame (201) is arranged inside the mounting frame (30), a connecting cover (202) is arranged inside the movable frame (201), a sealing cover (203) is arranged inside the connecting cover (202) in a sliding mode, a connecting plate (204) is arranged at the top of the connecting cover (202), a flue gas pipe (205) is arranged at the top of the sealing cover (203), the bottom end of the flue gas pipe (205) extends to the bottom of the sealing cover (203), connecting blocks (206) are arranged on two sides of the top of the connecting plate (204), a movable push rod (207) is arranged in the middle of the top of the connecting plate (204), and the bottom end of the movable push rod (207) is fixedly connected with the top of the sealing cover (203);

a material baffle plate (105) is arranged on one side, close to the connecting pipe (104), in the material guide frame (102), a sliding groove (106) matched with the material baffle plate (105) is formed in the top of the material guide frame (102), and the bottom of the material baffle plate (105) is in sliding connection with the interior of the sliding groove (106);

the heat insulation component is arranged inside the middle converter (20) and comprises a heat conduction spiral pipe (301), a fire-resistant layer (302) is arranged inside the middle converter (20), a heat insulation layer (303) is arranged on the peripheral surface of the fire-resistant layer (302), the heat conduction spiral pipe (301) is arranged on the peripheral surface of the heat insulation layer (303), two flow guide pipes (304) are symmetrically arranged on the front surface of the middle converter (20), and one ends of the two flow guide pipes (304) are communicated with the inside of the heat conduction spiral pipe (301);

and heat exchange tubes (305) are arranged on two sides inside the guide frame (102), and one ends of the two heat exchange tubes (305) are communicated with one end of the guide tube (304).

2. The transfer furnace device for refining the secondary lead smelting reduction lead according to claim 1, characterized in that: the both sides of adjustable shelf (201) inner wall all slide and are provided with movable block (208), and the both sides of adjustable shelf (201) inner wall all seted up with movable block (208) matched with movable groove (209), two one side of movable block (208) respectively with the inside sliding connection in two movable grooves (209), and two relative one sides of movable block (208) respectively with the both sides fixed connection of connecting lid (202).

3. The transfer furnace device for secondary lead smelting-reduction lead refining according to claim 1, characterized in that: the truss is arranged above the mounting rack (30), and a linear sliding assembly is arranged inside the truss.

4. The transfer furnace device for refining the secondary lead smelting reduction lead according to claim 1, characterized in that: one end of the flue gas pipe (205) is provided with a gas collecting pump, and the air outlet of the gas collecting pump is provided with a dust removing cloth pipe.

5. The transfer furnace apparatus for secondary lead smelting-reduction lead refining according to any one of claims 1 to 4, characterized in that: the use method of the converter device for refining the secondary lead smelting reduction lead specifically comprises the following steps:

step one, a truss is arranged above the mounting frame (30), a linear sliding assembly is arranged inside the truss, the connecting cover (202) is driven by the truss to slide to the upper side of the transfer furnace (20) in the movable frame (201), then a movable push rod (207) in the middle of the connecting plate (204) is pressed downwards, a sealing cover (203) is pushed into a through hole (60) in the top of the transfer furnace (20) from the inside of the connecting cover (202) by the bottom end of the movable push rod (207), and sealing treatment of the inside of the transfer furnace (20) is completed;

step two, producing liquid reduced lead by using an oxygen-enriched side blowing furnace, introducing the liquid reduced lead into a chute (103) in a material guide frame (102), allowing the liquid reduced lead to enter a middle converter (20) through the chute (103), a connecting pipe (104) and a feeding pipe (50), and finally stopping feeding the liquid reduced lead by pushing a material baffle plate (105) into the material guide frame (102) along a chute (106);

absorbing heat in the material guide frame (102) by a heat exchange medium in the heat exchange tube (305) in the process of feeding the liquid reduced lead, then feeding the heat exchange medium into the heat conduction spiral tube (301) through the guide tube (304), wherein the heat exchanged by the heat exchange medium in the heat conduction spiral tube (301) is used for heat preservation treatment of the interior of the intermediate converter (20);

step four, in the process of feeding the liquid reduced lead, the liquid reduced lead generates lead-containing flue gas in the transfer furnace (20), and the flue gas is connected with a flue gas pipe (205) through a gas collecting pump to extract the flue gas in the transfer furnace (20);

and step five, connecting the lead pump with a discharge pipe (40), and pumping the liquid reduced lead in the intermediate converter (20) into a refining pot.

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