Molten iron discharging trolley for rock wool smelting furnace

Abstract

The utility model provides a molten iron discharging trolley for a rock wool smelting furnace, which belongs to the technical field of rock wool processing and comprises a trolley body, a crucible is placed in the trolley body, a cold water circulating pipeline is arranged at the top of the trolley body, the side wall of the trolley body is of a double-layer hollow structure, and cooling water is introduced into the cold water circulating pipeline and the side wall of the trolley body. The temperature of a molten iron splashing part can be effectively reduced, and the molten iron is prevented from corroding the molten iron discharging trolley.

Description

Technical Field

[0001] The utility model relates to the technical field of rock wool processing, in particular to a molten iron placing trolley for a rock wool furnace. Background Art

[0002] Rock wool is made by melting basalt, dolomite, coke, etc. into magma in a furnace at about 1400℃. The magma will fall onto high-speed rollers through the guide trough and be collected by the collector, stacked by the pendulum, solidified, split, and packaged to make rock wool products of various specifications.

[0003] Among them, the furnace is the key equipment for rock wool production. The furnace is equipped with an oxygen-enriched, high-temperature combustion-supporting air system and an exhaust gas treatment and heat exchange system to evenly melt the raw materials into molten liquid. In this process, iron will be reduced. The main reaction principle of iron reduction is: under high temperature, the carbon monoxide generated by the reaction of coke and oxygen is used to reduce iron from iron ore, and finally it is stored at the bottom of the furnace in the form of liquid iron. Since iron and iron are soluble in each other, and the melting process is violent, the molten iron will be eroded and corroded if stored at the bottom of the furnace for a long time. Therefore, the molten iron at the bottom of the furnace needs to be released at regular intervals during normal production. The specific process is to drill a hole in the bottom of the furnace and rely on gravity and the pressure in the furnace to discharge the molten iron into the crucible at the bottom of the furnace. The crucible is placed in a trolley that can move back and forth. Since the molten iron is in liquid form and is released from a high-temperature furnace, the temperature is high and it will splash. The traditional trolley device for releasing molten iron is easily corroded. Utility Model Content

[0004] In view of the defects or shortcomings in the existing technology, the utility model provides a molten iron trolley for a rock wool furnace, which can effectively reduce the temperature of the molten iron splashing part and prevent the molten iron from corroding the molten iron trolley.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An embodiment of the utility model provides a molten iron trolley for a rock wool furnace, comprising a car body, a crucible placed in the car body, a cold water circulation pipe provided on the top of the car body, and a double-layer hollow structure of the car body side wall, through which cooling water flows both into the cold water circulation pipe and the inside of the car body side wall.

[0007] Furthermore, the vehicle body is a quadrangular pyramid structure that is wide at the top and narrow at the bottom, with an open top and a closed bottom.

[0008] Furthermore, the four side walls of the vehicle body are interconnected.

[0009] Furthermore, running wheels are arranged around the outer sides of the bottom of the vehicle body, and a running track is arranged under the vehicle body, and the running track is slidably connected to the running wheels.

[0010] Furthermore, the cold water circulation pipeline is composed of four hollow square tubes, and the four hollow square tubes are connected end to end in a rectangular shape.

[0011] Furthermore, the cold water circulation pipeline covers the outer edge of the top of the vehicle body, and the interiors of the four hollow square tubes are interconnected.

[0012] Furthermore, the cold water circulation pipeline is also provided with a first water inlet and a first water outlet, and both the first water inlet and the first water outlet are connected to the interior of the cold water circulation pipeline.

[0013] Furthermore, the first water inlet and the first water outlet are respectively arranged at the diagonal positions of the cold water circulation pipe.

[0014] Furthermore, a second water inlet and a second water outlet are provided on the front side wall of the vehicle body, and the second water inlet and the second water outlet are both communicated with the interior of the side wall of the vehicle body.

[0015] Furthermore, the second water inlet is located below the front side wall of the vehicle body, and the second water outlet is located above the front side wall of the vehicle body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model arranges a cold water circulation pipe on the top of the vehicle body and arranges the side walls of the vehicle body into a double-layer hollow structure. Cooling water can circulate in the cold water circulation pipe and the side walls of the vehicle body. When splashing molten iron falls on the top and side walls of the vehicle body, the temperature of the splashing part of the molten iron can be effectively reduced, thereby avoiding the corrosion of the vehicle body by the high-temperature molten iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the molten iron trolley in the embodiment of the utility model;

[0019] Figure 2 This is a side sectional view of the molten iron trolley in the embodiment of the utility model;

[0020] Among them, 1. vehicle body; 2. running wheels; 3. running tracks; 4. crucible; 5. cold water circulation pipe; 6. first water inlet; 7. first water outlet; 8. cold water holding chamber; 9. second water inlet; 10. second water outlet. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] A typical implementation of the present invention is as follows: Figure 1 and Figure 2As shown, a molten iron trolley for a rock wool furnace includes a car body 1. The car body 1 is a quadrangular pyramid structure that is wide at the top and narrow at the bottom. The top is open and the bottom is closed. Traveling wheels 2 are arranged around the outer side of the bottom. The traveling wheels 2 can be driven by a motor or by adding rope traction. A traveling track 3 is arranged under the car body 1. There are two traveling tracks 3. The two traveling tracks 3 are arranged in parallel. The two traveling tracks 3 correspond to the traveling wheels 2 on both sides of the bottom of the car body 1, so that the trolley can move on the traveling track 3.

[0023] A crucible 4 is provided inside the vehicle body 1 and can withstand high temperatures. The vehicle is placed at the bottom of a high-temperature furnace and the molten iron is discharged into the crucible 4 in the vehicle by gravity and the pressure in the furnace, thereby transferring the molten iron.

[0024] A cold water circulation pipe 5 is provided on the top of the vehicle body 1. The cold water circulation pipe 5 consists of four hollow square tubes. The four hollow square tubes are connected end to end to form a rectangle, covering the outer edge of the top of the vehicle body 1. The four hollow square tubes are interconnected.

[0025] The cold water circulation pipe 5 is also provided with a first water inlet 6 and a first water outlet 7. The first water inlet 6 and the first water outlet 7 are both connected to the inside of the cold water circulation pipe 5. The first water inlet 6 and the first water outlet 7 are respectively arranged at the diagonals of the cold water circulation pipe 5. The first water inlet 6 and the first water outlet 7 are both connected to the cooling water pipe 5. The cooling water flows into the cold water circulation pipe 5 through the first water inlet 6 and flows out from the first water outlet 7. Pressurized cooling water is introduced into the cold water circulation pipe 5 through the first water inlet 6 and the first water outlet 7, thereby realizing cooling water circulation in the cold water circulation pipe 5.

[0026] The side wall of the vehicle body 1 is a double-layer hollow structure, and the four side walls are interconnected to form a cold water holding chamber 8. A second water inlet 9 and a second water outlet 10 are provided on the front side wall of the vehicle body 1. The second water inlet 9 and the second water outlet 10 are both connected to the cold water holding chamber 8. The second water inlet 9 is located below the front side wall of the vehicle body 1, and the second water outlet 10 is located above the front side wall of the vehicle body 1. The second water inlet 9 and the second water outlet 10 are both connected to the cooling water pipe. Pressurized cooling water is introduced into the cold water holding chamber 8 through the second water inlet 9 and the second water outlet 10 to fill the side wall of the vehicle body.

[0027] During the process of pouring molten iron, the splashing molten iron is likely to corrode the top and surrounding side walls of the trolley. The introduction of cooling water can effectively reduce the temperature of the molten iron splashing area, thereby protecting the trolley.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A molten iron trolley for a rock wool furnace, characterized in that: The vehicle comprises a vehicle body, a crucible is placed in the vehicle body, a cold water circulation pipeline is arranged on the top of the vehicle body, the side wall of the vehicle body is a double-layer hollow structure, and cooling water is passed through the cold water circulation pipeline and the inside of the side wall of the vehicle body.

2. A molten iron trolley for a rock wool furnace as claimed in claim 1, characterized in that: The vehicle body is a quadrangular pyramid structure that is wide at the top and narrow at the bottom, with an opening at the top and a closed bottom.

3. A molten iron trolley for a rock wool furnace as claimed in claim 2, characterized in that: The four side walls of the vehicle body are interconnected.

4. A molten iron trolley for a rock wool furnace as claimed in claim 1, characterized in that: The outer sides of the bottom of the vehicle body are provided with running wheels around, and a running track is provided under the vehicle body, and the running track is slidably connected with the running wheels.

5. The molten iron trolley for a rock wool furnace as claimed in claim 1, characterized in that: The cold water circulation pipeline is composed of four hollow square tubes, and the four hollow square tubes are connected end to end in a rectangular shape.

6. A molten iron trolley for a rock wool furnace as claimed in claim 5, characterized in that: The cold water circulation pipeline covers the outer edge of the top of the vehicle body, and the insides of the four hollow square tubes are interconnected.

7. The molten iron trolley for a rock wool furnace as claimed in claim 1, characterized in that: The cold water circulation pipeline is also provided with a first water inlet and a first water outlet, and the first water inlet and the first water outlet are both connected to the inside of the cold water circulation pipeline.

8. A molten iron trolley for a rock wool furnace as claimed in claim 7, characterized in that: The first water inlet and the first water outlet are respectively arranged at the diagonal positions of the cold water circulation pipeline.

9. The molten iron trolley for a rock wool furnace as claimed in claim 1, characterized in that: A second water inlet and a second water outlet are arranged on the front side wall of the vehicle body, and the second water inlet and the second water outlet are both communicated with the inside of the side wall of the vehicle body.

10. A molten iron trolley for a rock wool furnace as claimed in claim 9, characterized in that: The second water inlet is located below the front side wall of the vehicle body, and the second water outlet is located above the front side wall of the vehicle body.

Images