CN217764458U

CN217764458U - Slag-off opening cooling device of vertical melting furnace

Info

Publication number: CN217764458U
Application number: CN202221706781.2U
Authority: CN
Inventors: 梁高喜; 程晓康; 李军学; 任飞飞; 梁体会; 乔相军
Original assignee: Henan Zhongyuan Gold Smeltery Co ltd
Current assignee: Henan Zhongyuan Gold Smeltery Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-08
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses a vertical melting furnace takes off slag notch cooling device, including the cooling device body, cooling device body middle part is equipped with and takes off the slag notch of slag notch looks adaptation with vertical melting furnace, and this internal left and right two ways independent cooling water course that is equipped with of cooling device, left and right two ways independent cooling water course symmetric distribution are in the both sides of slag notch, and every way cooling water course includes water inlet and delivery port, and the cooling water business turn over mode of two ways cooling water courses is the lower income and goes out. The requirement of continuous slag skimming in the production process of the vertical melting furnace is met, the materials can meet the melting speed, simultaneously, the produced slag can be discharged in time, the purpose of stable production is achieved, the yield of the shaft furnace is improved to 35t/h from 20t/h, and the quality of copper liquid is improved.

Description

Slag-off opening cooling device of vertical melting furnace

Technical Field

The utility model belongs to the field of non-ferrous metal metallurgy equipment, in particular to a slag hole cooling device is taken off to vertical melting furnace.

Background

The requirements of the production and manufacturing field on energy conservation and emission reduction are gradually increased, along with the exhaustion of the domestic copper ore resources, a plurality of copper smelting and processing enterprises pay more and more attention to the recycling of scrap copper, and certain manufacturers at home and abroad apply the shaft furnace process to the treatment of reclaimed copper, thereby obtaining good benefits.

The vertical melting furnace process is a technology for melting and processing electrolytic residual anode and waste anode plate. The burner installed at the lower part of the furnace body provides a heat source, and the high-temperature and rigid flame sprayed by the burner directly contacts the raw material entering the furnace. In the process that the anode scrap and the waste plate slowly descend from the charging opening, the anode scrap and the waste plate are heated by the smoke flowing from bottom to top, the furnace burden and the smoke are just in countercurrent and orthogonal, most of heat of the smoke is transferred to the furnace burden, and the heat is fully utilized. The surface of the material column is melted to form liquid drops which fall to the bottom of the furnace, and because the vertical melting furnace has no hearth, the melt does not form a molten pool in the furnace, directly flows to a small front chamber outside the furnace through a slope of the bottom of the furnace after falling into the bottom of the furnace, then enters a chute through a copper outlet of the small front chamber, and then flows into a heat preservation furnace, so that the energy consumption is effectively reduced, the production cost is saved, and the material column is taken as an efficient device for melting solid materials, and the head angle is gradually exposed in the copper smelting industry.

However, with the wide application of the vertical melting furnace process, the impurity content in the raw materials is gradually increased, a large amount of slag is generated, and if slag removal is not timely carried out, the bottom of the shaft furnace is lifted, and a front chamber molten pool becomes small; in severe cases, the copper liquid flows unsmoothly and overflows from a slag removing port, copper leakage accidents occur, and safety production is threatened, so that the accumulated slag at the bottom of the furnace needs to be cleaned regularly. In the slag removing process of the slag removing opening built by using the refractory bricks, slag is easy to bond at the slag removing opening, and the slag removing opening is not tightly sealed and is subjected to fire after being cleaned, so that a slag opening cover and a slag opening steel plate are burnt, and the phenomenon of smoke escape is caused. In addition, due to the limitation of the service life and the position of the slag removing opening, the refractory bricks of the slag removing opening must be stopped and replaced, and the normal production is influenced. Use the utility model discloses take off slag notch cooling device after, the production risk reduces, and the slag notch is sealed tighter, and the phenomenon of flaming, smoking obtains controlling, and the site environment obviously improves, and resistant firebrick changes the cycle extension, and production is more steady.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a slag hole cooling device of a vertical melting furnace.

Based on the above-mentioned purpose, the utility model discloses a technical scheme does:

the utility model provides a vertical melting furnace takes off slag notch cooling device, includes the cooling device body, and cooling device body middle part is equipped with the slag notch with vertical melting furnace takes off slag notch looks adaptation, and this internal left and right two ways independent cooling water course that is equipped with of cooling device, left and right two ways independent cooling water course symmetric distribution are in the both sides of slag notch, and every way cooling water course includes water inlet and delivery port, and the cooling water business turn over mode of two ways cooling water course is down to advance to go out.

Furthermore, each cooling water channel consists of a lower horizontal cooling water channel, a vertical cooling water channel and an upper horizontal cooling water channel from bottom to top, the upper horizontal cooling water channel and the lower horizontal cooling water channel have the same structure and are both U-shaped, and the upper horizontal cooling water channel and the lower horizontal cooling water channel consist of a front side part, a rear side part and a connecting part for connecting the two side parts.

Furthermore, the distance between the center line of the front side edge part of the horizontal cooling water channel and the front side surface and the distance between the center line of the rear side edge part of the horizontal cooling water channel and the rear side surface are both less than or equal to 1/3 of the thickness of the cooling device body.

Further, the distance between the front side edge part and the front side surface, the distance between the rear side edge part and the rear side surface, the distance between the upper horizontal cooling water channel and the upper side surface, and the distance between the lower horizontal cooling water channel and the lower side surface of the horizontal cooling water channel are the same.

Furthermore, the length of the cooling device body is 500mm, the width is 450mm, the thickness is 150mm, the size of the slag removing opening is 250mm multiplied by 300mm, and the diameter of the cooling water channel is 30mm.

Furthermore, the distance between the upper horizontal cooling water channel and the lower horizontal cooling water channel is 327mm, the distance between the front side edge part and the rear side edge part is 27mm, and the distance between the connecting parts of the left horizontal cooling water channel and the right horizontal cooling water channel on the same horizontal plane is 63mm.

The utility model discloses a take off slag notch cooling device is formed by the whole processing of the Q345R steel sheet that thickness is 150mm, can not be by steel sheet concatenation processing. The cooling water channel is formed by machining a rotary hole, and after the cooling water channel is machined, the process hole is plugged by a plug and then is plugged by welding.

The utility model has the advantages that:

(1) The requirement of continuous slag skimming in the production process of the vertical melting furnace is met, and the system can run stably for a long time.

(2) The slag produced when the feeding amount of the vertical melting furnace is ensured can be discharged in time, the production efficiency of the system is improved, and the feeding amount of the vertical melting furnace is increased from 20t/h to 35t/h.

(3) Compared with the earlier stage of transformation, the use of the cooling device improves the quality of the copper liquid in the vertical melting furnace, reduces the content of slag in the melt inside the chute, further enables the copper liquid to flow more smoothly, and reduces the risk of system parking caused by chute blockage.

(4) The cooling device ensures that the slag hole is protected by water cooling, the service life of the refractory brick at the slag hole is prolonged to 360 days from 30 days, the annual overhaul frequency of the vertical melting furnace is reduced by half, and the production cost and the start-stop cost are reduced.

The utility model discloses fundamentally has realized the demand that vertical melting furnace takes off the sediment in succession to improve the copper liquid quality, made vertical melting furnace production that can be stable for a long time.

Drawings

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

FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic view of the slag removing port assembly of the vertical melting furnace of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the following specific embodiments, but the scope of the present invention is not limited thereto.

Example 1

A slag hole cooling device of a vertical melting furnace is disclosed, as shown in figures 1 and 2, and comprises a cooling device body 1, wherein a slag hole 3 matched with the slag hole of the vertical melting furnace is arranged in the middle of the cooling device body 1, a left path and a right path of independent cooling water channels are arranged in the cooling device body 1, the left path and the right path of independent cooling water channels are symmetrically distributed on the left side and the right side of the slag hole 3, the left side cooling water channel comprises a water inlet 2-1 and a water outlet 2-2, the right side cooling water channel comprises a water inlet 2-3 and a water outlet 2-4, and the cooling water inlet and outlet modes of the two paths of cooling water channels are respectively arranged in a downward inlet mode and a upward outlet mode.

In the embodiment, each cooling water channel consists of a lower horizontal cooling water channel 4-1, a vertical cooling water channel 4-2 and an upper horizontal cooling water channel 4-3 from bottom to top, the upper horizontal cooling water channel 4-3 and the lower horizontal cooling water channel 4-1 have the same structure and are both in a U shape, and the upper horizontal cooling water channel and the lower horizontal cooling water channel consist of a front side part, a rear side part and a connecting part for connecting the two side parts.

In this embodiment, the distance between the center line of the front side edge portion and the front side surface of the horizontal cooling water channel and the distance between the center line of the rear side edge portion and the rear side surface of the horizontal cooling water channel are both less than or equal to 1/3 of the thickness of the cooling device body 1.

In this embodiment, the distance S5 between the front side edge and the front side surface, the distance S6 between the rear side edge and the rear side surface, the distance between the upper horizontal cooling water channel and the upper side surface, and the distance S2 between the lower horizontal cooling water channel and the lower side surface of the horizontal cooling water channel are all the same, and are all 31.5mm.

In this embodiment, the length L1 of the cooling device body 1 is 500mm, the width W1 is 450mm, the thickness H is 150mm, the length L2 of the slag hole 3 is 300mm, the width W2 is 250mm, and the diameter d of the cooling water channel is 30mm.

In this embodiment, the distance S1 between the upper horizontal cooling water channel 4-3 and the lower horizontal cooling water channel 4-1 is 327mm, the distance S4 between the front and rear side edge portions is 27mm, and the distance S3 between the connection portions of the left and right horizontal cooling water channels on the same horizontal plane is 63mm.

When in use, the device is arranged at the position of a slag-off opening of the vertical melting furnace, as shown in figure 3: the cooling device is connected with a shell 7 of the vertical melting furnace in a welding mode, and the interior of the vertical melting furnace is built by adopting furnace bricks 6 so as to protect the cooling device.

The utility model discloses cooling device's manufacture process as follows:

step 1: firstly, a Q345R steel plate with the thickness of 150mm is selected and processed by using a wire cutting technology according to the external dimension shown in figure 1 to obtain the required dimension, and two or more steel plates are strictly forbidden to be used for welding and forming.

Step 2: and (3) drilling the center of the workpiece on the basis of the step (1), feeding a molybdenum wire for linear cutting through a hole, and performing linear cutting on the slag hole 3.

And step 3: and surveying and drawing the outer side of the cooling water channel, and rotating the water jackets in a drilling mode.

And 4, step 4: reserving positions of water inlet and outlet pipes at the water inlet and outlet, plugging the openings of other water channels by using plugs 5, firstly, carrying out internal thread processing on the openings to be plugged, then, processing a thread head for plugging, and carrying out welding reinforcement at the plugging positions, wherein the height of a welding line is not less than 10mm.

And 5: and (4) carrying out internal thread processing on the positions of the inlet and outlet water pipes, and then installing the counter threads. The water inlets 2-1 and 2-3 are provided with water inlet pipes, the water outlets 2-2 and 2-4 are provided with water outlet pipes, and the distance between the central lines of the water inlet pipes and the water outlet pipes and the front side surface cannot exceed 1/3 of the thickness of the steel plate.

Step 6: and (3) carrying out integral water testing and pressurizing on the cooling device, wherein the water pressure is 0.5MPa, the pressure maintaining time is 30 minutes, and no pressure change indicates that the water channel is not leaked.

The device is processed by adopting an integral plate, so that the high-temperature melt splashing accident caused by welding, opening and leaking water due to long-term high-temperature state is avoided.

Finally, it should be noted that: the above-mentioned embodiments are only for illustrating the technical solutions of the specific embodiments of the present invention and not for limiting the same, and it should be understood by those skilled in the art that any equivalent substitution or obvious modification of the embodiments of the present invention without changing the performance or usage of the embodiments of the present invention without departing from the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a vertical melting furnace takes off slag notch cooling device, its characterized in that, includes the cooling device body, and cooling device body middle part is equipped with the slag notch with vertical melting furnace takes off slag notch looks adaptation, and this internal left and right two ways independent cooling water course that is equipped with of cooling device, left and right two ways independent cooling water course symmetric distribution are in the both sides of slag notch, and every way cooling water course includes water inlet and delivery port, and the cooling water business turn over mode of two ways cooling water course is down and goes up out.

2. The slag raking port cooling device for the vertical melting furnace as claimed in claim 1, wherein each cooling water channel is composed of a lower horizontal cooling water channel, a vertical cooling water channel and an upper horizontal cooling water channel from bottom to top, the upper and lower horizontal cooling water channels have the same structure and are both U-shaped, and the upper and lower horizontal cooling water channels are composed of front and rear side portions and a connecting portion connecting the side portions.

3. The slag raking port cooling device for the vertical melting furnace as set forth in claim 1, wherein the distance between the center line of the front side edge portion of the horizontal cooling water passage and the front side surface thereof and the distance between the center line of the rear side edge portion thereof and the rear side surface thereof are each equal to or less than 1/3 of the thickness of the cooling device body.

4. The vertical melting furnace slagging-off port cooling device according to claim 1, wherein the cooling device body has a length of 500mm, a width of 450mm, a thickness of 150mm, a size of the slagging-off port of 250mm x 300mm, and a diameter of the cooling water passage of 30mm.

5. The apparatus of claim 2, wherein the distance between the front side edge and the front side surface of the horizontal cooling water passage, the distance between the rear side edge and the rear side surface, the distance between the upper horizontal cooling water passage and the upper side surface, and the distance between the lower horizontal cooling water passage and the lower side surface are the same.