CN210140618U - Copper smelting flash furnace concentrate nozzle structure - Google Patents

Abstract

The utility model discloses a flash stove concentrate nozzle structure is smelted to copper, including interior bushing pipe, conveying pipeline and shell, the conveying pipeline has been put to interior bushing pipe outside cover, and conveying pipeline and interior bushing pipe spiro union department placed first sealed the pad, and the conveying pipeline upper end evenly is provided with the inlet pipe that four groups are linked together, and the shell upper end is provided with shell screwed joint, and the backup pad has been put to the cover between conveying pipeline and the shell of shell screwed joint below, the spiro union board top in the conveying pipeline outside is fixed with the clamp plate, and has placed the second between clamp plate below and the shell screwed joint and seal up, and interior bushing pipe upper end is provided with the baffle, and is provided with the screwed joint on the interior bushing pipe of baffle. This flash stove concentrate nozzle structure is smelted to copper adopts and sets up the oxygen chamber at the inside lining pipe at material chamber middle part, and oxygen blowout is downwards, and is effectual to dispersion all around, improves and smelts the effect, reduces and smelts the cost, adopts integrated configuration to set up dismantlement easy maintenance.

Description

Copper smelting flash furnace concentrate nozzle structure

Technical Field

The utility model relates to a flash stove nozzle technical field specifically is a copper smelting flash stove concentrate nozzle structure.

Background

The flash smelting process is characterized in that dried powdery mixed furnace burden, oxygen-enriched air and auxiliary fuel (heavy oil, pulverized coal, natural gas and the like) are fully mixed in a specially-made concentrate nozzle and are vertically sprayed into a reaction tower of a flash furnace at a proper high speed (80-120 m/s), and the uniformity of the furnace burden entering the concentrate nozzle plays a key role in the reaction performance of the concentrate nozzle. The concentrate nozzle is of a multilayer annular structure, a central oxygen conveying pipe is arranged in the center of the concentrate spray pipe, four fin-shaped distributors are arranged between the concentrate spray pipe and the central oxygen conveying pipe to uniformly divide the cavity into four compartments, feed inlets of two blanking pipes are respectively arranged on two sides of two opposite distributors, and concentrate falling off from each blanking pipe after being divided by the distributors respectively enters two adjacent compartments. Due to the influence of the blanking distance and the blanking angle, the materials are difficult to be uniformly distributed into the corresponding distributor compartments, and when the materials enter the spray cavity through the blanking pipe, the materials are easily concentrated in the areas near the distributor due to the influence of the blanking speed and the blanking angle, the materials cannot be uniformly distributed in the distributor compartments, the local segregation phenomenon is caused, the incomplete reaction of the areas with much concentrate is easily caused, raw materials are formed, and the serious influence is caused on the reaction of the flash furnace.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art because the influence of unloading distance and angle, hardly evenly distributed to corresponding distributor compartment to when spouting the chamber by the unloading pipe entering, because the influence of unloading speed and angle is concentrated in distributor near region easily, unable evenly distributed is in the distributor compartment, causes local segregation phenomenon, and the regional reaction that leads to the concentrate many easily is incomplete, forms the raw material, causes the problem of serious influence to the flash furnace reaction.

In order to achieve the above object, the utility model provides a following technical scheme: a copper smelting flash furnace concentrate nozzle structure comprises an inner lining pipe, a material conveying pipe and a shell, wherein the material conveying pipe is sleeved on the outer side of the inner lining pipe, a first sealing gasket is arranged at the screwed joint of the material conveying pipe and the inner lining pipe, four groups of communicated material conveying pipes are uniformly arranged at the upper end of the material conveying pipe, a screwed plate is arranged on the material conveying pipe below the material conveying pipe, a shell screwed joint is arranged at the upper end of the shell, the shell is screwed on the screwed plate through the shell screwed joint, a supporting plate is sleeved between the material conveying pipe below the shell screwed joint and the shell, and two groups of gas conveying pipes are communicated with the shell between the supporting plate and the;

the clamp plate is fixed above the screw joint plate on the outer side of the conveying pipe, the second sealing gasket is arranged between the lower portion of the clamp plate and the shell screw joint, the upper end of the lining pipe is provided with a baffle, the screw joint is arranged on the lining pipe below the baffle, and the screw joint arranged on the lining pipe is in screw joint with the screw joint of the conveying pipe arranged at the upper end of the conveying pipe.

Preferably, the inside aerobic cavity that offers of interior bushing pipe, and the inside conveying chamber that the bushing pipe lower extreme gos deep into in the conveying pipeline, and the bushing pipe outside is evenly provided with four group's baffles simultaneously, and four group's baffles divide into four group's spaces with the conveying chamber to four group's spaces are corresponding with the inlet pipe.

Preferably, the outer side of the partition plate arranged on the outer side of the lining pipe is tightly attached to the inner wall of the conveying pipe, the outlet at the lower end of the conveying pipe is larger than the outlet of the lining pipe, and the outlet of the shell is larger than the outlet of the conveying pipe.

Preferably, interior bushing pipe, conveying pipeline and shell are the cylindrical structure that 304 stainless steel constitutes, and just the cylindrical structure lower extreme of interior bushing pipe, conveying pipeline and shell is the round platform structure, and the backup pad is annular porous ceramic material simultaneously, and first sealed pad and second sealed pad are the silica gel material constitution.

Preferably, the upper end of the lining pipe is provided with a lining pipe screw head, and the four groups of feed pipes uniformly arranged on the feed conveying pipe and the outer sides of the two groups of gas conveying pipes arranged on the outer side of the shell are provided with threads.

Preferably, the lower end inside the conveying pipe is uniformly provided with a vertical guide chute, and the inner wall of the shell below the supporting plate is uniformly provided with a spiral guide chute.

Compared with the prior art, the beneficial effects of the utility model are that:

1. concentrate is input into different compartments, the concentrate is in contact with a control part below the concentrate under the action of the gravity of a material, the middle part of the concentrate enters the concentrate, and the bolt guide groove is arranged at the bottom of a material conveying part, so that the blanking uniformity at the position of a feed opening can be improved, the blanking speed is eliminated, the material conveying distribution of the concentrate compartments can be more uniform, and the segregation phenomenon can be overcome;

2. an oxygen chamber is arranged in the lining pipe in the middle of the material chamber, oxygen is sprayed downwards, the dispersion effect to the periphery is good, the smelting effect is improved, and the smelting cost is reduced;

3. the combined structure is adopted for arrangement, disassembly and maintenance, and the sealing gasket is arranged at the joint of the combined structure, so that the sealing effect of the equipment is achieved.

Drawings

FIG. 1 is a schematic view of the installation structure of the present invention;

FIG. 2 is a schematic view of a feed delivery pipe of the present invention;

FIG. 3 is a schematic view of the structural lining pipe of the present invention;

FIG. 4 is a schematic view of the structural shell of the present invention;

FIG. 5 is a schematic sectional view of the structure A-A of the present invention;

fig. 6 is a schematic sectional view of the structure B-B of the present invention.

Reference numbers in the figures: 1. the device comprises a lining pipe, 2, a first sealing gasket, 3, a conveying pipe, 4, a shell, 5, a supporting plate, 6, a gas pipe, 7, a spiral connecting plate, 8, a second sealing gasket, 9, a feeding pipe, 10, a conveying pipe spiral connector, 11, a pressing plate, 12, a guide chute, 13, a partition plate, 14, a lining pipe spiral head, 15, a baffle plate, 16, a spiral connector, 17, an oxygen chamber, 18, a shell spiral connector, 19, a spiral guide chute, 20 and a conveying cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a copper smelting flash furnace concentrate nozzle structure comprises an inner lining pipe 1, a material conveying pipe 3 and a shell 4, wherein the material conveying pipe 3 is sleeved outside the inner lining pipe 1, a first sealing gasket 2 is arranged at the screwed joint of the material conveying pipe 3 and the inner lining pipe 1, four groups of communicated material inlet pipes 9 are uniformly arranged at the upper end of the material conveying pipe 3, a screwed plate 7 is arranged on the material conveying pipe 3 below the material inlet pipes 9, a vertical material guide groove 12 is uniformly arranged at the lower end inside the material conveying pipe 3, a spiral material guide groove 19 is uniformly arranged on the inner wall of the shell 4 below a supporting plate 5, a shell screwed joint 18 is arranged at the upper end of the shell 4, the shell 4 is screwed on the screwed plate 7 through the shell screwed joint 18, a supporting plate 5 is sleeved between the material conveying pipe 3 and the shell 4 below the shell screwed joint 18, two groups of gas conveying pipes 6 are communicated on the shell 4 between the supporting plate 5 and the shell screwed joint 18, a second sealing gasket 8 is arranged between the lower part of the pressing plate 11 and a shell screwed joint 18, the upper end of the lining pipe 1 is provided with a baffle plate 15, the lining pipe 1 below the baffle plate 15 is provided with a screwed joint 16, the screwed joint 16 arranged on the lining pipe 1 is screwed with a feeding pipe screwed joint 10 arranged at the upper end of the feeding pipe 3, an oxygen chamber 17 is arranged inside the lining pipe 1, the lower end of the lining pipe 1 extends into a feeding chamber 20 in the feeding pipe 3, meanwhile, four groups of partition plates 13 are uniformly arranged outside the lining pipe 1, the feeding chamber 20 is divided into four groups of spaces by the four groups of partition plates 13, the four groups of spaces correspond to the feeding pipes 9, the outer sides of the partition plates 13 arranged outside the lining pipe 1 are tightly attached to the inner wall of the feeding pipe 3, the outlet at the lower end of the feeding pipe 3 is larger than the outlet of the lining pipe 1, the outlet of the shell 4 is larger than the outlet of the feeding pipe 3, the lining, and the cylindrical structure lower extreme of interior bushing pipe 1, conveying pipeline 3 and shell 4 is the round platform structure, and backup pad 5 is annular porous ceramic material simultaneously, and first sealed pad 2 and the sealed 8 constitution of second are the silica gel material, and the upper end of interior bushing pipe 1 is provided with interior bushing pipe spiral shell head 14, and evenly sets up on conveying pipeline 3 four groups of inlet pipes 9 and the two sets of gas-supply pipes 6 outsides that set up in the shell 4 outside all are provided with the screw thread.

When using this copper smelting flash furnace concentrate nozzle structure, at first link together the interior bushing pipe spiral shell head 14 of oxygen supply pipe and interior bushing pipe 1 upper end, link together gas-supply pipe 6 and air trachea, and inlet pipe 9 is connected with concentrate pipeline and supplementary fuel pipeline, mix concentrate gravity effect down at the inside downward transport of defeated material chamber 20, and oxygen passes through oxygen chamber 17 output, oxygen promotes the mixed concentrate blowout simultaneously, and the inside air that gets into of gas-supply pipe 6 enters into the shell 4 inner chamber, later make gaseous even through backup pad 5, gaseous is rotary motion along spiral baffle box 19, and downward oxygen and concentrate coincidence, the oxygen column at middle part promotes the material and disperses all around, this is exactly this whole process of copper smelting flash furnace concentrate nozzle structure work.

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 (6)

1. The utility model provides a flash stove concentrate nozzle structure is smelted to copper, includes interior bushing pipe (1), conveying pipeline (3) and shell (4), its characterized in that: the conveying pipeline (3) is sleeved on the outer side of the inner lining pipe (1), a first sealing gasket (2) is arranged at the screwed joint of the conveying pipeline (3) and the inner lining pipe (1), four groups of communicated feeding pipes (9) are uniformly arranged at the upper end of the conveying pipeline (3), a screwed plate (7) is arranged on the conveying pipeline (3) below the feeding pipes (9), a shell screwed joint (18) is arranged at the upper end of the shell (4), the shell (4) is screwed on the screwed plate (7) through the shell screwed joint (18), a supporting plate (5) is sleeved between the conveying pipeline (3) below the shell screwed joint (18) and the shell (4), and two groups of gas conveying pipes (6) are communicated on the shell (4) between the supporting plate (5) and the shell screwed joint (18);

the pressure plate (11) is fixed above the screw joint plate (7) on the outer side of the conveying pipe (3), the second sealing gasket (8) is placed between the lower portion of the pressure plate (11) and the shell screw joint (18), the baffle (15) is arranged at the upper end of the lining pipe (1), the screw joint (16) is arranged on the lining pipe (1) below the baffle (15), and the screw joint (16) arranged on the lining pipe (1) is in screw joint with the conveying pipe screw joint (10) arranged at the upper end of the conveying pipe (3).

2. The concentrate burner structure of the copper smelting flash furnace according to claim 1, characterized in that: inside aerobic cavity (17) of seting up of interior bushing pipe (1), and inside bushing pipe (1) lower extreme gos deep into defeated material chamber (20) in defeated material pipe (3), evenly is provided with four group's baffles (13) in the bushing pipe (1) outside simultaneously, and four group's baffles (13) divide into four groups of spaces with defeated material chamber (20), and four groups of spaces are corresponding with inlet pipe (9).

3. The concentrate burner structure of the copper smelting flash furnace according to claim 1, characterized in that: the outer side of a partition plate (13) arranged on the outer side of the lining pipe (1) is tightly attached to the inner wall of the conveying pipe (3), the outlet at the lower end of the conveying pipe (3) is larger than the outlet of the lining pipe (1), and the outlet of the shell (4) is larger than the outlet of the conveying pipe (3).

4. The concentrate burner structure of the copper smelting flash furnace according to claim 1, characterized in that: interior bushing pipe (1), conveying pipeline (3) and shell (4) are the cylinder structure that 304 stainless steel material constitutes, and just the cylinder structure lower extreme of interior bushing pipe (1), conveying pipeline (3) and shell (4) is the round platform structure, and backup pad (5) are annular porous ceramic material simultaneously, and first sealed pad (2) and the sealed pad (8) of second are the silica gel material and constitute.

5. The concentrate burner structure of the copper smelting flash furnace according to claim 1, characterized in that: the upper end of the lining pipe (1) is provided with a lining pipe screw head (14), and the four groups of feeding pipes (9) uniformly arranged on the feeding pipe (3) and the outer sides of the two groups of gas conveying pipes (6) arranged on the outer side of the shell (4) are all provided with threads.

6. The concentrate burner structure of the copper smelting flash furnace according to claim 1, characterized in that: the lower end in the conveying pipe (3) is uniformly provided with a vertical guide chute (12), and the inner wall of the shell (4) below the supporting plate (5) is uniformly provided with a spiral guide chute (19).

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