High titanium slag oxidizing roasting mechanism

Abstract

The utility model discloses a high titanium slag oxidizing roasting mechanism which comprises a roasting furnace. The air inlet is formed in the lower end of the roasting furnace; the preheating cylinder is arranged at the furnace gas outlet end of the roasting furnace; the heat exchange channel is arranged on the inner side of the preheating cylinder; the conveying device is arranged at the end part of the preheating cylinder and extends into the inner side of the heat exchange channel; the utility model relates to the technical field of high titanium slag production, in use, the roasting furnace is used for heating, air enters the roasting furnace through the air inlet for oxidation reaction, titanium ore is added into the heat exchange channel, the conveying device is started for conveying, and meanwhile, the roasting furnace is used for roasting the titanium ore. Hot air heated in the furnace enters the preheating cylinder through the furnace gas outlet end and exchanges heat through the heat exchange channel, so that titanium ores are preheated before entering the roasting furnace, the situation that the titanium ores need to be heated to the required temperature for a long time due to the fact that the titanium ores are directly put into a roasting mechanism is effectively avoided, and the production efficiency of high titanium slag is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high titanium slag production technical field, and the specific field is a kind of high titanium slag oxidizing roasting mechanism. BACKGROUND

[0002] The main purpose of high titanium slag oxidizing roasting is to make low-valence metal oxides (such as FeO, TiO2, etc.) in high titanium slag oxidize by high-temperature treatment.

[0003] At present, after grinding, titanium ore is added to the roasting mechanism, and the content of titanium dioxide in high titanium slag is increased by oxidizing roasting. However, titanium ore needs to be heated to the required temperature for a long time when it is directly placed in the roasting mechanism for roasting, which affects the production efficiency of high titanium slag. Therefore, a high titanium slag oxidizing roasting mechanism is provided. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of high titanium slag oxidizing roasting mechanism to solve the problem that titanium ore needs to be heated to the required temperature for a long time when it is directly placed in the roasting mechanism for roasting, which affects the production efficiency of high titanium slag.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of high titanium slag oxidizing roasting mechanism, comprising:

[0006] a roasting furnace;

[0007] an air inlet arranged at the lower end of the roasting furnace;

[0008] a preheating cylinder arranged at the gas outlet end of the roasting furnace;

[0009] a heat exchange channel arranged inside the preheating cylinder;

[0010] a conveying device arranged at the end of the preheating cylinder and extending into the inside of the heat exchange channel;

[0011] a furnace gas pipeline arranged on the preheating cylinder.

[0012] Preferably, the heat exchange channel includes a cylinder arranged inside the preheating cylinder, the outer wall of the cylinder is arranged in a gap between the inner wall of the preheating cylinder, the end of the preheating cylinder is provided with a feeding hopper communicating with the cylinder, and the end of the cylinder extends into the roasting furnace and is provided with a discharging channel.

[0013] Preferably, the conveying device includes a driving motor arranged at the end of the preheating cylinder, the driving end of the driving motor extends into the heat exchange channel and is provided with a rotating rod, a plurality of stirring rods are arranged on the side wall of the rotating rod in a spiral manner, and the ends of the plurality of stirring rods are collectively provided with a spiral conveying plate.

[0014] Preferably, the inner wall of the preheating cylinder is provided with a spiral partition between the outer wall of the heat exchange channel.

[0015] Preferably, the outlet end of the furnace gas pipeline is arranged away from the feeding hopper.

[0016] Compared with the prior art, the beneficial effects of the high-titanium slag oxidizing roasting mechanism are as follows: when in use, the roasting furnace is heated, air enters the oxidizing reaction through the air inlet, the titanium ore is added into the heat exchange channel, and the conveying device is started to convey, at the same time, the heated hot gas in the furnace enters the preheating cylinder through the furnace gas outlet end, exchanges heat through the heat exchange channel, the titanium ore is preheated before entering the roasting furnace, the preheated titanium ore can be quickly heated to the required temperature for roasting after entering the roasting furnace, and the production efficiency of the high-titanium slag is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a main sectional view structure schematic diagram of the utility model;

[0018] Figure 2 It is Figure 1 A local enlarged structure schematic diagram.

[0019] In the figure: 1, roasting furnace; 2, air inlet; 3, preheating cylinder; 4, heat exchange channel; 4-1, cylinder body; 4-2, feeding hopper; 4-3, discharging channel; 5, conveying device; 5-1, driving motor; 5-2, rotating rod; 5-3, stirring rod; 5-4, spiral conveying plate; 6, furnace gas pipeline; 7, spiral partition. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-2The utility model provides a technical scheme: a kind of high titanium slag oxidizing roasting mechanism, comprising: roasting furnace 1;Air inlet 2 is set to the lower end of roasting furnace 1;Preheating cylinder 3 is set to the furnace gas outlet end of roasting furnace 1;Heat exchange passage 4 is set to the inside of preheating cylinder 3;Conveying device 5 is set to the end of preheating cylinder 3, and it extends into the inside of heat exchange passage 4;Furnace gas pipeline 6 is set on preheating cylinder 3, when using, heating is carried out by roasting furnace 1, air enters and carries out oxidation reaction by air inlet 2, and titanium ore is added into heat exchange passage 4, and conveying device 5 is started to convey, simultaneously, heated hot gas in furnace enters into preheating cylinder 3 by furnace gas outlet end, carries out heat exchange by heat exchange passage 4, so that titanium ore is preheated before entering roasting furnace 1, and titanium ore after preheating can be heated to the temperature required by roasting quickly after entering roasting furnace 1, effectively avoid that titanium ore is directly placed into roasting mechanism, so that titanium ore needs to be heated to the temperature required by long time, and the production efficiency of high titanium slag is improved.

[0022] Specifically, heat exchange passage 4 includes cylinder body 4-1 arranged inside preheating cylinder 3, cylinder body 4-1 is used for heat exchange with furnace gas, and the outer wall of cylinder body 4-1 is arranged in gap with the inner wall of preheating cylinder 3, the gap is used for furnace gas to pass through, the end of preheating cylinder 3 is provided with feeding hopper 4-2 communicated with cylinder body 4-1, feeding hopper 4-2 is used for adding titanium ore material, the end of cylinder body 4-1 extends into roasting furnace 1 and is provided with discharging passage 4-3, when using, titanium ore enters the inside of cylinder body 4-1 through feeding hopper 4-2, and conveying device 5 is used for conveying titanium ore to discharging passage 4-3 to realize feeding of roasting furnace 1.

[0023] Specifically, conveying device 5 includes driving motor 5-1 arranged at the end of preheating cylinder 3, the driving end of driving motor 5-1 extends into heat exchange passage 4 and is provided with rotating rod 5-2, a plurality of stirring rods 5-3 are arranged on the side wall of rotating rod 5-2 in spiral distribution, and the ends of the plurality of stirring rods 5-3 are commonly provided with spiral conveying plate 5-4, when using, driving motor 5-1 is started to drive rotating rod 5-2, stirring rod 5-3 and spiral conveying plate 5-4 to rotate, stirring rod 5-3 is used for stirring titanium ore, the uniformity of preheating of titanium ore is ensured, and rotating of spiral conveying plate 5-4 is used for conveying titanium ore in heat exchange passage 4 to roasting furnace 1, and stirring of titanium ore is realized while conveying by conveying device 5.

[0024] Specifically, spiral partition plate 7 is arranged between the inner wall of preheating cylinder 3 and the outer wall of heat exchange passage 4, the inner wall of preheating cylinder 3 and the outer wall of heat exchange passage 4 form furnace gas passage by arranging spiral partition plate 7, one end of furnace gas passage is communicated with the inside of roasting furnace 1, the other end of furnace gas passage is communicated with furnace gas pipeline 6, the heat exchange time of furnace gas and heat exchange passage 4 is effectively improved by furnace gas passage, the heat exchange efficiency is improved, and the utilization of waste heat of furnace gas is improved.

[0025] Specifically, the outlet end of the flue gas pipeline 6 is arranged away from the feeding hopper 4-2, the flue gas pipeline 6 is communicated with the end of the preheating cylinder 3, by arranging the outlet end of the flue gas pipeline 6 away from the feeding hopper 4-2, when the operator discharges the feeding hopper 4-2, the hot flue gas discharged by the flue gas pipeline 6 does not harm the operator, and the safety of the equipment is ensured.

[0026] Working principle: during the working of the utility model, firstly, the roasting furnace 1 is started to heat, air enters to carry out oxidation reaction through the air inlet 2, the titanium ore is added into the heat exchange channel 4, and the conveying device 5 is started to convey, simultaneously, the hot gas heated in the furnace enters into the preheating cylinder 3 through the flue gas outlet end, carries out heat exchange through the heat exchange channel 4, and the titanium ore is preheated before entering the roasting furnace 1.

[0027] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The standard parts used in the present application can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0029] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high titanium slag oxidizing roasting mechanism, characterized in that, The utility model relates to a roasting furnace, which comprises: a roasting furnace (1); an air inlet (2) arranged at the lower end of the roasting furnace (1); a preheating cylinder (3) arranged at the gas outlet end of the roasting furnace (1); a heat exchange channel (4) arranged inside the preheating cylinder (3); a conveying device (5) arranged at the end of the preheating cylinder (3) and extending into the inside of the heat exchange channel (4); a gas pipeline (6) arranged on the preheating cylinder (3).

2. The oxidizing roasting mechanism of high titanium slag according to claim 1, characterized in that: The heat exchange channel (4) comprises a cylinder body (4-1) arranged inside the preheating cylinder (3), the outer wall of the cylinder body (4-1) is arranged in a gap with the inner wall of the preheating cylinder (3), the end of the preheating cylinder (3) is provided with a feeding hopper (4-2) in communication with the cylinder body (4-1), and the end of the cylinder body (4-1) extends into the roasting furnace (1) and is provided with a discharging channel (4-3).

3. The oxidizing roasting mechanism of high titanium slag according to claim 1, characterized in that: The conveying device (5) comprises a driving motor (5-1) arranged at the end of the preheating cylinder (3), the driving end of the driving motor (5-1) extends into the heat exchange channel (4) and is provided with a rotating rod (5-2), a plurality of stirring rods (5-3) are arranged on the side wall of the rotating rod (5-2) in a spiral manner, and the ends of the stirring rods (5-3) are jointly provided with a spiral conveying plate (5-4).

4. The oxidizing roasting mechanism of high titanium slag according to claim 1, characterized in that: A spiral partition plate (7) is arranged between the inner wall of the preheating cylinder (3) and the outer wall of the heat exchange channel (4).

5. The oxidizing roasting mechanism of high titanium slag according to claim 2, characterized in that: The outlet end of the gas pipeline (6) is arranged away from the feeding hopper (4-2).

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