Roasting secondary combustion device

Abstract

The utility model relates to a roasting secondary combustion device which comprises a secondary combustion device body, a combustion mechanism and an oxygenating mechanism, the combustion mechanism is installed inside the secondary combustion device body, the oxygenating mechanism is communicated with the secondary combustion device body, the bottom of the secondary combustion device body is communicated with a feeding pipe, and the top of the secondary combustion device is communicated with an exhaust pipe. The feeding pipe is communicated with the discharging end of the roasting furnace, after raw materials are primarily incinerated through the roasting furnace, the primarily incinerated raw materials are conveyed into the secondary combustion device body to be secondarily incinerated, the secondary combustion device body is filled with sufficient oxygen through the oxygen filling mechanism, and the raw materials are sufficiently incinerated through the combustion mechanism; therefore, the raw materials can be fully incinerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a roasting equipment technical field, concretely relates to a roasting second burning device. BACKGROUND

[0002] With the wide application of noble metal in many key industrial fields such as electronics, chemical industry, automobile exhaust purification, primary noble metal mineral resources are gradually scarce. In order to meet the continuous demand of industrial production for noble metal, it is indispensable to effectively recover and utilize noble metal in waste containing noble metal. In industrial production, the noble metal is usually recovered and treated by roasting furnace.

[0003] In the related art, the roasting device is used for incineration, but the roasting device in the prior art only incinerates the raw material once, and the incineration is not sufficient. UTILITY MODEL CONTENT

[0004] The utility model aims at designing a roasting second burning device to solve the technical problems in the above background.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a roasting second burning device, including second burning device body, combustion mechanism and oxygen charging mechanism, the combustion mechanism is installed in the inside of the second burning device body, the oxygen charging mechanism is communicated with the second burning device body, the bottom of the second burning device body is communicated with the feeding pipe, the top of the second burning device body is communicated with the exhaust pipe, the feeding pipe is communicated with the discharge end of the roasting furnace.

[0006] Further, the inside of the second burning device body is equipped with a partition, the partition divides the second burning device body into an upper chamber and a lower chamber, and a through hole for communicating the upper chamber and the lower chamber is arranged on the partition.

[0007] Further, a center combustion cylinder is arranged in the upper chamber, and the exhaust pipe penetrates the side wall of the second burning device body and is communicated to the center combustion cylinder.

[0008] Further, the combustion mechanism comprises a first burner, and the output end of the first burner is communicated with the center combustion cylinder.

[0009] Further, the combustion mechanism further comprises a second burner, and the second burner is installed in the lower chamber.

[0010] Further, the oxygen charging mechanism comprises a plurality of combustion-supporting air pipes, and a fan is arranged in each combustion-supporting air pipe.

[0011] Compared with the prior art, the roasting two-burning device has the beneficial effects that: the raw materials are firstly burnt by the roasting furnace, then the raw materials after the first burning are transported into the two-burning device body for secondary burning, sufficient oxygen is filled into the two-burning device body by the oxygen filling mechanism, and the raw materials are fully burnt by the burning mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a whole structure schematic view of the utility model;

[0013] Fig. 2 It is a sectional view of the utility model;

[0014] The names of the components marked in the drawing are as follows: 1, two-burning device body; 2, burning mechanism; 21, first burner; 22, second burner; 3, oxygen filling mechanism; 31, combustion-supporting air pipe; 32, fan; 4, feeding pipe; 5, exhaust pipe; 6, partition plate; 7, upper chamber; 8, lower chamber; 9, central combustion cylinder. DETAILED DESCRIPTION

[0015] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0016] Embodiment: please refer to Figs. 1-2 A roasting two-burning device, which comprises a two-burning device body 1, a burning mechanism 2 and an oxygen filling mechanism 3, the burning mechanism 2 is installed in the interior of the two-burning device body 1, the oxygen filling mechanism 3 is communicated with the two-burning device body 1, the bottom of the two-burning device body 1 is communicated with a feeding pipe 4, the top of the two-burning device body 1 is communicated with an exhaust pipe 5, the feeding pipe 4 is communicated with the discharge end of a roasting furnace, after the raw materials are firstly burnt by the roasting furnace, the raw materials are transported from the output end of the roasting furnace to the interior of the two-burning device body 1 through the feeding pipe 4, sufficient air is introduced into the two-burning device body 1 through the oxygen filling mechanism 3, and the oxygen required for burning the raw materials is provided, which is beneficial to the more sufficient burning of the raw materials; the raw materials are further burnt by the burning mechanism 2, so that the raw materials are fully burnt; the bottom of the two-burning device body 1 is also provided with a discharging pipe, after the burning is completed, the generated materials are transported to the next production equipment through the discharging pipe, and the gas is discharged from the exhaust pipe 5.

[0017] The interior of the two-burning device body 1 is provided with a partition plate 6, the partition plate 6 divides the two-burning device body 1 into an upper chamber 7 and a lower chamber 8, the partition plate 6 is provided with a through hole for communicating the upper chamber 7 and the lower chamber 8, and the raw materials are burnt in the lower chamber 8 and the upper chamber 7 in sequence, so that the raw materials stay in the two-burning device body 1 for a longer time in total, which is beneficial to the more sufficient burning of the raw materials.

[0018] The center combustion cylinder 9 is arranged in the upper chamber 7, the exhaust pipe 5 is communicated to the center combustion cylinder 9 through the side wall of the secondary combustion device body 1, the center combustion cylinder 9 is open at both ends, and the bottom opening is arranged to be staggered with the through hole on the partition plate 6, the flue gas flows into the upper chamber 7 from the through hole, and then flows into the center cylinder from the outside of the center combustion cylinder 9, so that the residence time of the raw material in the secondary combustion device body 1 is further prolonged, and the raw material is more fully combusted.

[0019] The combustion mechanism 2 comprises a first burner 21, the output end of the first burner 21 is communicated with the center combustion cylinder 9, and the raw material is combusted again through the first burner 21; the combustion mechanism 2 further comprises a second burner 22, the second burner 22 is installed in the lower chamber 8, in the embodiment, the number of the second burner 22 is at least two, the two second burners 22 are symmetrically arranged, and the raw material in the lower chamber 8 is combusted through the second burner 22; the oxygen charging mechanism 3 comprises a plurality of combustion-supporting air pipes 31, in the embodiment, the lower chamber 8 and the upper chamber 7 are respectively communicated with two combustion-supporting air pipes 31, so that the air is uniformly distributed in the secondary combustion device body 1, the combustion-supporting air pipe 31 is provided with a fan 32, and the air is rapidly conveyed through the fan 32, so that the oxygen required for combustion of the raw material is sufficient.

[0020] The working principle of the embodiment is as follows: in the process of incineration, the raw material is initially incinerated in the calcination furnace, is conveyed into the secondary combustion device body 1 from the output end of the calcination furnace through the feeding pipe 4, enters the lower chamber 8, sufficient air is introduced into the secondary combustion device body 1 through the fan 32, the second burner 22 and the first burner 21 are started respectively, the raw material is incinerated again in the lower chamber 8, flows into the upper chamber 7 from the through hole on the partition plate 6, flows into the center cylinder from the outside of the center combustion cylinder 9, the raw material is incinerated completely through the first burner 21, after the incineration is completed, the generated material is conveyed to the next production equipment through the discharging pipe, and the gas is discharged from the exhaust pipe 5; the above process is the secondary combustion of the raw material, and the raw material can be more fully combusted.

[0021] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with a preferred embodiment, however, it is not used to limit the utility model, any person skilled in the art, without departing from the technical scheme range of the utility model, can make some changes or modifications to the above disclosed technical content for equivalent embodiments, but as long as it does not depart from the technical scheme content of the utility model, any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, still belongs to the range of the technical scheme of the utility model.

Claims

1. A two-stage roasting apparatus, characterized by: The device comprises a double combustion device body (1), a combustion mechanism (2) and an oxygen charging mechanism (3), the combustion mechanism (2) is installed in the double combustion device body (1), the oxygen charging mechanism (3) is communicated with the double combustion device body (1), the bottom of the double combustion device body (1) is communicated with a feeding pipe (4), the top of the double combustion device body (1) is communicated with an exhaust pipe (5), and the feeding pipe (4) is communicated with the discharge end of the calcination furnace.

2. The fired double combustion device of claim 1, wherein: The inside of the double combustion device body (1) is provided with a partition plate (6), the partition plate (6) divides the double combustion device body (1) into an upper chamber (7) and a lower chamber (8), and the partition plate (6) is provided with a through hole for communicating the upper chamber (7) and the lower chamber (8).

3. The fired double combustion device of claim 2, wherein: A center combustion cylinder (9) is arranged in the upper chamber (7), and the exhaust pipe (5) penetrates the side wall of the double combustion device body (1) and is communicated with the center combustion cylinder (9).

4. The fired double combustion device of claim 3, wherein: The combustion mechanism (2) comprises a first burner (21), and the output end of the first burner (21) is communicated with the center combustion cylinder (9).

5. The fired double combustion device of claim 4, wherein: The combustion mechanism (2) further comprises a second burner (22), and the second burner (22) is installed in the lower chamber (8).

6. The fired double combustion device of claim 1, wherein: The oxygen charging mechanism (3) comprises a plurality of combustion-supporting air pipes (31), and the combustion-supporting air pipes (31) are provided with air fans (32).

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