A copper matte closed heat insulation guide trough for anti-thermal radiation

Abstract

The present invention discloses an anti-thermal radiation copper matte closed thermal insulation guide trough, which is characterized in that the inner surfaces of the trough seat frame, trough cover and arc-shaped lining cover are coated with an anti-thermal radiation coating composed of refractory sintering material as a masterbatch and Yingsu particles as an additive, and the empty space formed between the supporting convex legs of the U-shaped refractory bricks and the trough seat frame is utilized. The empty space between the trough cover and the arc-shaped lining cover and between the arc-shaped lining cover and the chute is utilized to form an anti-thermal radiation isolation zone, and the super-strong anti-radiation, low thermal conductivity and high temperature resistance of the Yingsu particles are utilized to prevent the heat energy of the high-temperature copper matte in the chute from being lost during the transportation process. Compared with the prior art, the present invention has the characteristics and advantages of smooth copper matte transportation, less heat energy loss, energy saving, environmental protection, and convenient observation and maintenance, and therefore has a good value for promotion and application.

Description

Technical Field

[0001] The invention belongs to auxiliary facilities for nonferrous metal smelting, and is specifically an anti-heat radiation copper matte closed heat-insulating guide trough for copper matte transportation between smelting furnaces implemented in stages and between smelting furnaces and casting troughs. Background Art

[0002] Smelting, blowing and refining are the basic steps and procedures for industrial copper production. After the smelting furnace, blowing furnace and refining furnace complete their respective reaction processes, the molten high-temperature copper matte needs to be transported and injected into the next-level smelting furnace for further reaction and purification. The anode copper matte obtained from the refining furnace must also be transported to the casting trough for casting into copper ingots. The transportation of copper matte under the existing technology is mostly completed by copper ladle carrying and transporting. In order to shorten the smelting process, reduce heat loss, and reduce the impact of open copper ladle on the surrounding environment, some companies use closed diversion troughs to complete copper matte transportation, and have achieved good production results. However, there are still the following unsatisfactory problems and shortcomings, mainly: First, the transportation pipeline is a slender and uninterrupted chute with a large overall heat dissipation area, a long exposure time, and a large heat loss. Second, due to the loss of thermal energy and the increase in the viscosity of the copper matte, the flow rate is reduced or even blocked. Third, the smelting furnace, converting furnace and refining furnace are not arranged linearly one to one. The refining furnace needs to feed quantitatively to the reaction process in a stable state. Therefore, the converting furnace needs to be fed alternately and intermittently through the Y-type guide groove in a one-to-two manner. The cooling of the guide groove during the intermittent period is natural. In response to the above problems, the guide groove is insulated and covered to reduce heat loss. A burner is set on the groove cover to heat the process and preheat the cooling guide groove. However, it is still unsatisfactory, wasting heat and energy, and the lost heat pollutes the working environment. The selection and operation of the heating process increases the labor intensity of the operator. Summary of the invention

[0003] The purpose of the present invention is to provide a closed thermal insulation guide trough for copper matte that is anti-thermal radiation and has a simple structure, is easy to manufacture, and has a better thermal insulation effect, in order to address the problems and shortcomings of the above-mentioned method of transporting copper matte through a guide trough.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] The invention discloses an anti-thermal radiation copper matte closed heat-insulating guide trough, comprising a trough seat frame, a trough cover, an arc-shaped lining cover, a double-slotted shaft, a U-shaped refractory brick, a supporting convex leg, a chute, a burner and an anti-thermal radiation coating. The invention is characterized in that the anti-thermal radiation coating composed of a refractory sintering material as a masterbatch and Yingsu particles as an additive is coated on the inner surfaces of the trough seat frame, the trough cover and the arc-shaped lining cover. The anti-thermal radiation isolation zone is formed by utilizing the empty space formed between the supporting convex leg of the U-shaped refractory brick and the trough seat frame, the empty space between the trough cover and the arc-shaped lining cover, and the empty space between the arc-shaped lining cover and the chute. The super strong anti-radiation, low thermal conductivity and high temperature resistance physical properties of the Yingsu particles are utilized to prevent the heat energy of the high-temperature copper matte in the chute from being lost during the transportation process.

[0006] The anti-thermal radiation copper matte closed insulation guide trough is characterized in that a burner arranged on the longitudinal center line of the trough cover is retained for activating the guide trough and switching the copper matte supply direction, and preheating before reuse after intermittent use.

[0007] The anti-thermal radiation copper matte closed heat-insulating guide trough is characterized in that double slotted shafts are arranged on both sides of the trough cover, which is convenient for lifting or removing the trough cover from both sides to observe the copper matte operation status and inspect the guide trough.

[0008] Compared with the prior art, the present invention has the characteristics of simple structure, easy manufacture, excellent heat preservation effect, and also has the following advantages:

[0009] 1. As an additive for heat-insulating outer coating used by NASA for spacecraft to re-enter the atmosphere and safely pass the blackout period, Yingsu particles have been widely observed and used since their secret was revealed. The present invention creates space for the anti-thermal radiation performance of Yingsu particles by improving the morphological structure of U-shaped refractory bricks. An arc-shaped lining cover is added to the slot cover, and a double heat-insulating insurance is set for the upper part of the guide slot where the insulation is weak, ensuring the relatively constant temperature transportation of the copper matte in the guide slot.

[0010] 2. Double slotted shafts are set on both sides of the trough cover, which makes it easy to lift it up for observation from both sides and to remove it for maintenance of the guide trough, making work more convenient and reducing labor intensity.

[0011] 3. Enhanced thermal insulation performance of the guide trough. First, it ensures the smooth transportation of copper matte. Second, it maintains the temperature of the copper matte input into the blowing furnace or refining furnace, reduces the temperature increase process and heat energy input required for further reaction, shortens the smelting cycle, and saves energy.

[0012] 4. The reduction of heat energy loss during the copper matte transportation process reduces the thermal pollution of the surrounding environment and improves the working environment of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a cross-sectional schematic diagram of a copper matte-enclosed thermal insulation guide trough for anti-thermal radiation.

[0014] In the figure: 1 slot base frame, 2 slot cover, 3 arc-shaped lining cover, 4 double slotted shaft, 5 U-shaped refractory brick, 6 supporting convex legs, 7 chute, 8 burner, 9 anti-thermal radiation coating. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below with reference to the accompanying drawings:

[0016] like Figure 1 As shown: a long strip U-shaped refractory brick 5 is purchased and customized, and a supporting convex leg 6 is provided on the upper sides and the bottom midline of the U-shaped refractory brick 5, and the lower part of the U-shaped groove is a copper matte chute 7. The outer diameter of the supporting convex leg 6 is used to make a concave groove seat frame 1 and a groove cover 2 of equal width, and the double slotted shafts 4 arranged on both sides are combined into a guide groove with a rectangular cross section. An arc-shaped liner cover 3 is arranged in the groove cover 2. A burner 8 is arranged on the longitudinal midline of the groove cover 2. An anti-thermal radiation coating 9 composed of a refractory sintering material as a masterbatch and Yingsu particles as an additive is applied to the inner surface of the groove seat frame, the inner surface of the groove cover 2 and the bottom of the arc-shaped liner cover 3.

[0017] Except for the technical features described in the specification, the rest are known technologies to those skilled in the art.

Claims

1. A copper matte closed heat-insulating guide trough with anti-thermal radiation, comprising a trough frame, a trough cover, an arc-shaped liner cover, a double-slotted shaft, a U-shaped refractory brick, a supporting convex leg, a chute, a burner and an anti-thermal radiation coating, characterized in that The inner surfaces of the tank shell frame, tank cover and arc lining cover are coated with an anti-thermal radiation coating composed of refractory sintering material as the masterbatch and Yingsu particles as the additive. The empty space between the supporting convex legs of the U-shaped refractory bricks and the tank shell frame, the empty space between the tank cover and the arc lining cover, and the empty space between the arc lining cover and the chute are used to form an anti-thermal radiation isolation zone. The super-strong anti-radiation, low thermal conductivity and high-temperature resistant physical properties of Yingsu particles are used to prevent the heat energy of the high-temperature copper matte in the chute from being lost during transportation; the burner set on the longitudinal center line of the tank cover is retained for the activation of the guide chute and the conversion of the copper matte supply direction, and preheating before reuse after an interval; double slotted shafts are set on both sides of the tank cover to facilitate lifting or removing the tank cover from both sides to observe the operation status of the copper matte and inspect the guide chute; Support convex legs are provided outwardly on the two upper sides and the bottom midline of the U-shaped refractory bricks, and the lower part of the U-shaped groove is a copper matte chute; the outer diameter of the support convex legs is used to make a concave groove seat frame and a groove cover of equal width, which is combined into a guide groove with a rectangular cross section through the double slotted shafts provided on both sides; an arc-shaped lining cover is provided inside the groove cover.

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