CN201109791Y - Molybdenum ore oxidation desulfurization device - Google Patents

Abstract

A molybdenum ore oxidation desulfurization device includes a feeder, a clinker receiving room, a dust removal device, and an air induction device. A preheating furnace and an ignition control room are arranged between the feeder and the clinker receiving room. The material channel is in the shape of a volute, and a material scraper and a material outlet are arranged at the bottom of the clinker receiving room. The material scraper set at the bottom of the clinker receiving room is automatically controlled by a motor driven by a sprocket. The utility model has the advantages of simple operation, low labor intensity of workers, automatic operation can be realized; small investment, cost reduction, compared with the reverberatory furnace of the same scale, the investment is only one tenth, and compared with the rotary kiln, the investment is only one tenth. It is one-twentieth of it; saves energy, and can realize combustion without additional coal; large production capacity; environmental protection, no pollution of exhaust gas, and exhaust gas can be controlled at SO ₂ concentration of 2-5% (V/V ) below and can be collected.

Description

Molybdenum ore oxidation desulfurization device

technical field

The utility model relates to a molybdenum ore oxidation desulfurization device, in particular to a primary mineral oxidation roasting desulfurization and decarburization device for nickel-molybdenum ore and molybdenum fine powder.

Background technique

To produce molybdenum oxide with nickel-molybdenum ore or molybdenum powder, the current process mainly uses reverberatory furnace, rotary kiln or fluidized bed furnace for desulfurization. High labor intensity, high energy consumption, small output, and large pollution; rotary kiln roasting has the disadvantages of large pollution, small output, large investment, and low labor efficiency; boiling roasting has the disadvantages of incomplete desulfurization, inconvenient start-up and shutdown, and large investment.

Contents of the invention

The purpose of this utility model is to solve the deficiencies of the above-mentioned technical problems, and provide a primary mineral oxidation roasting desulfurization and decarburization device for nickel-molybdenum ore and molybdenum fine powder.

In order to solve the above-mentioned technical problems, the utility model adopts the technical scheme as follows: on the basis of making full use of the sulfur and carbon in nickel-molybdenum ore and molybdenum fine powder to generate heat energy through combustion, the utility model adopts the method of increasing the contact surface area of minerals and air to realize Rapid combustion, implement equipment to adjust the fineness of minerals by spraying, control air volume, realize combustion desulfurization, and wash with water as a supplement. The device includes a feeder, clinker receiving room, dust removal device, and air induction device. There is a preheating furnace and an ignition control room between the clinker receiving room. The material channel in the ignition control room is in the shape of a volute. The material channel of the preheating furnace communicates with the ignition control room. In the same way, after the material enters through the feeder, it is ground into a fine powder of about 200 meshes and sprayed into the preheating furnace. After being preheated by the preheating furnace, the fine powder is sprayed into the ignition control room. The ignition point of the ore powder can be ignited and burned after the controllable ignition control room rotates once, and desulfurization and decarburization can be realized at the moment of burning. There is a material scraper and a material outlet at the bottom of the clinker receiving room.

In the present utility model, the clinker receiving chamber is composed of one or more clinker collectors connected in series.

In the present utility model, the clinker receiving chamber is also provided with a temperature control regulator.

In the utility model, the material scraper arranged at the bottom of the clinker receiving chamber is automatically controlled by a motor driven by a sprocket.

The preheating furnace of the utility model is composed of a fuel combustion chamber and a material circulation chamber, and the fuel combustion chamber and the material circulation chamber are together in a space body. The fuel combustion chamber can burn various coals, firewood and raw materials that are easy to burn.

The utility model is also equipped with a water washing dust collection system or a pickling system. When a small amount of dust enters the fine particle water washing dust collection system or pickling system, it enters the fan after treatment, so that all the materials are collected, and the sulfur and carbon are collected. remove.

The utility model has the advantages of:

1. The operation is simple, the labor intensity of the workers is small, and the automatic operation can be realized;

2. Small investment and cost reduction. Compared with reverberatory furnaces of the same scale, the investment is only one tenth, and compared with rotary kilns, the investment is only one twentieth;

3. Energy saving, can realize burning without additional coal;

4. Large production capacity;

5. Environmental protection, the discharged exhaust gas is non-polluting, and the exhaust gas can be controlled below the SO ₂ concentration of 2-5% (V/V), and can be collected.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the ignition control chamber of the present invention.

Marks in the figure: 1. Loading machine, 2. Preheating furnace, 3. Ignition control room, 4. Clinker receiving room, 5. Material scraper, 6. Dust removal device, 7. Air induction device, 8. Washing and collecting Dust system, 9, motor, 10, discharge port, 11, motor.

Detailed ways

As can be seen from Figure 1, the utility model is provided with a feeder 1, a clinker receiving chamber 4, and a dust removal device 6, and a preheating furnace 2 and an ignition control chamber 3 are arranged between the feeder 1 and the clinker receiving chamber 4, The material enters through the feeder 1 and is ground into a fine powder of about 200 meshes and sprayed into the preheating furnace 2. After being preheated by the preheating furnace 2, the fine powder is sprayed into the ignition control room 3. The material basically reaches the ignition point of the slag powder, and is ignited and burned after one rotation of the controllable ignition control room 3, and is sprayed into the clinker receiving room 4 while burning, and desulfurization and decarburization are realized at the moment of burning. The bottom of the receiving chamber 4 is provided with a material scraper 5 and a material outlet 11. When the burned material falls into the bottom of the clinker receiving chamber 4, it is automatically sent to the discharge port 10 by the set material scraper 5. . The fully burned materials are collected in the clinker receiving chamber 4, and a small amount of dust enters the fine particle water washing dust collection system 8, and enters the air induction device 7 after washing. Since the materials and air are added according to the ratio, they can be controlled to enter the air induction device 7 The concentration of SO ₂ gas.

The utility model is also suitable for oxidation roasting desulfurization and decarburization of other primary minerals.

Claims (6)

1, a kind of molybdenum ore oxidation sweetening device, comprise feeder (1), grog reception chamber (4), cleaning apparatus (6), blower unit (7), washing dust collecting system (8), it is characterized in that: between feeder (1) and grog reception chamber (4), be provided with preheating oven (2) and ignition control chamber (3), material channel in the ignition control chamber (3) is scroll casing shape, the material channel of preheating oven (2) communicates with ignition control chamber (3), and the material channel of ignition control chamber (3) communicates with grog reception chamber (4).

2, a kind of molybdenum ore oxidation sweetening device according to claim 1 is characterized in that: be provided with material scraper plate (5) and material outlet (10) in the bottom of grog reception chamber (4).

3, a kind of molybdenum ore oxidation sweetening device according to claim 1, it is characterized in that: described grog reception chamber (4) is made up of one or more placed in-line grog collectors.

4, a kind of molybdenum ore oxidation sweetening device according to claim 1, it is characterized in that: described grog reception chamber (4) also is provided with temperature control damper.

5, a kind of molybdenum ore oxidation sweetening device according to claim 1 is characterized in that: the material scraper plate (5) that grog reception chamber (4) bottom is provided with is by a motor by chain sprocket drive (11) control automatically.

6, a kind of molybdenum ore oxidation sweetening device according to claim 1, it is characterized in that: described preheating oven (2) is made up of fuel combustion chamber and material stream passed chamber, and its fuel combustion chamber is with in the material stream passed chamber is in a space body mutually.

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