CN210802004U - A kind of oxygen-enriched hot air copper-containing waste slag smelting furnace - Google Patents

Abstract

The utility model discloses an oxygen-enriched hot air copper-containing waste slag smelting furnace, which comprises a smelting furnace and a heat exchange chamber. An oxygen supply port is arranged at the lower end of the smelting furnace, and an end of an oxygen supply pipe is connected to the outer side of the oxygen supply port. The other end of the oxygen supply pipe runs through the heat exchange chamber and is connected to the output end of the oxygen supply machine. The upper end of the smelting furnace is provided with a waste gas port, and the outside of the waste gas port is connected with the input end of the dust removal device. The dust removal device The output end of the exhaust pipe is connected with one end of the exhaust pipe, and the other end of the exhaust pipe is communicated with the input end of the exhaust gas treatment device through the heat exchange chamber. The oxygen supply pipe and the exhaust pipe are arranged in a spiral disk in the heat exchange chamber. The upper surface of the heat exchange chamber is respectively provided with a water inlet and a water outlet, and the water outlet is connected with one end of the heat exchange pipe through a pipe. The utility model realizes the cyclic utilization of the heat produced by the smelting furnace through the heat exchange chamber, can heat the blown oxygen, and can also be used for the heat preservation of the smelting furnace itself.

Description

A kind of oxygen-enriched hot air copper-containing waste slag smelting furnace

technical field

The utility model relates to the technical field of smelting furnaces, in particular to an oxygen-enriched hot air copper-containing waste slag smelting furnace.

Background technique

In industrial production, a lot of copper-containing waste slag is often generated. If not treated, it will not only pollute the environment, but also waste a lot of resources. Therefore, many factories smelt copper-containing waste slag, and the existing smelting technology generally uses a smelting furnace for reaction. There are two types of vessel and smelting furnace: fuel heating type and electric heating type. The electric heating type smelting furnace has a higher temperature and is more in line with the requirements for smelting copper-containing waste slag, but it will consume a lot of electricity. For this reason, we provide an energy-saving heat Recyclable melting furnace.

Utility model content

The purpose of the utility model is to provide an oxygen-enriched hot air copper-containing waste slag smelting furnace to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: an oxygen-enriched hot air copper-containing waste slag smelting furnace, including a smelting furnace and a heat exchange chamber, the upper end of the smelting furnace is provided with a feeding port, and the lower end of the smelting furnace is provided with an outlet. The lower end of the smelting furnace is provided with an oxygen supply port, the inner side of the oxygen supply port is connected with one end of an oxygen supply pipe, and the other end of the oxygen supply pipe is connected to the output end of the oxygen supply machine through the heat exchange chamber , the upper end of the smelting furnace is provided with a waste gas port, the inner side of the waste gas port is connected with the input end of the dust removal device, the output end of the dust removal device is connected with one end of the exhaust pipe, and the other end of the exhaust pipe passes through The heat exchange chamber is communicated with the input end of the waste gas treatment device. The oxygen supply pipe and the exhaust pipe are arranged in a spiral disk in the heat exchange chamber. The upper surface of the heat exchange chamber is respectively provided with a water inlet and a water outlet. The water outlet is connected with one end of a heat exchange tube through a pipeline, and the heat exchange tube is spirally coiled in the side wall of the smelting furnace. The other end of the heat pipe is communicated with the steam recovery tank, and the water inlet is communicated with the water pipe;

The oxygen supply port, the waste gas port, the water inlet and the water outlet are all provided with stop valves, and an air pump is fixedly installed at the connection between the heat exchange tube and the steam recovery box;

The oxygen supply machine, the air pump and the smelting furnace are all electrically connected to the power source through wires.

Preferably, the waste gas treatment device is a desulfurization tower.

Preferably, the smelting furnace is an electric heating smelting furnace.

Preferably, the cut-off valve is a manual cut-off valve, and the cut-off valve is respectively connected with the oxygen supply port, the waste gas port, the water inlet and the water outlet flange.

Preferably, a condensation device is provided in the steam recovery box.

Preferably, the dust removal device is a bag filter.

Compared with the prior art, the beneficial effects of the present utility model are: the utility model conducts heat exchange in the heat exchange chamber through the high-temperature gas generated in the smelting furnace during the smelting process, realizes the heating of the blown oxygen, and accelerates the smelting furnace. The molten material is melted, and the water in the heat exchange chamber can also be heated to form water vapor, which is diffused into the heat exchange tube to achieve the heat preservation effect of the melting furnace and save energy. The utility model realizes the cyclic utilization of the heat produced by the smelting furnace through the heat exchange chamber, can heat the blown oxygen, and can also be used for the heat preservation of the smelting furnace itself.

Description of drawings

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

Fig. 2 is the sectional structure schematic diagram of the smelting furnace of the utility model;

Fig. 3 is the cross-sectional structure schematic diagram of the heat exchange chamber of the utility model;

FIG. 4 is a schematic cross-sectional structure diagram of the steam recovery box of the present invention.

In the picture: 1- smelting furnace, 101- feed port, 102- discharge port, 2- heat exchange chamber, 201- water inlet, 202- water outlet, 301- oxygen supply port, 302- oxygen supply pipe, 303- Oxygen supply machine, 401-exhaust port, 402-dust removal device, 403-exhaust pipe, 5-exhaust gas treatment device, 6-pipeline, 7-heat exchange pipe, 8-steam recovery box, 9-water pipe, 10-stop valve , 11-air pump, 12-condensing device.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-4, the present utility model provides a technical solution: an oxygen-enriched hot air copper-containing waste slag smelting furnace, including a smelting furnace 1 and a heat exchange chamber 2, the smelting furnace 1 is a prior art, the utility model The smelting furnace 1 is a common smelting furnace 1 for smelting metal, the upper end of the smelting furnace 1 is provided with a feeding port 101, the lower end of the smelting furnace 1 is provided with a feeding port 102, and the feeding port 101 and the discharging port 102 are provided. The ports 102 are all provided with valves, the lower end of the smelting furnace 1 is provided with an oxygen supply port 301, and the outer side of the oxygen supply port 301 is connected with one end of an oxygen supply pipe 302, and the other end of the oxygen supply pipe 302 runs through the exchange. The hot chamber 2 is connected to the output end of the oxygen supply machine 303. After the oxygen supply machine 303 works, oxygen or air is transported into the smelting furnace 1 through the oxygen supply pipe 302. The oxygen supply machine 303 of the present invention can adjust the oxygen concentration and the flow rate. The upper end of the smelting furnace 1 is provided with a waste gas port 401, the outer side of the waste gas port 401 is connected with the input end of the dust removal device 402, and the output end of the dust removal device 402 is connected with one end of the exhaust pipe 403. The other end of the exhaust pipe 403 penetrates the heat exchange chamber 2 and is connected to the input end of the exhaust gas treatment device 5. The exhaust gas generated in the smelting furnace 1 is discharged into the exhaust gas treatment device 5 through the exhaust pipe 403 through the dust removal device 402, so The oxygen supply pipe 302 and the exhaust pipe 403 are arranged in a spiral disk in the heat exchange chamber 2. The upper surface of the heat exchange chamber 2 is respectively provided with a water inlet 201 and a water outlet 202, and the heat exchange chamber 2 is provided with an air pressure. The balance valve prevents the pressure in the heat exchange chamber 2 from being too large, and the outer wall of the heat exchange chamber 2 is also provided with an insulating layer to reduce heat loss and improve the utilization rate of heat. At one end of the smelting furnace 1, the heat exchange tube 7 is spirally wound in the side wall of the smelting furnace 1, and the side wall of the smelting furnace 1 is provided with an interlayer for use with the heat exchange tube 7. The other side of the heat exchange tube 7 One end is communicated with the steam recovery box 8, and the water inlet 201 is communicated with the water pipe 9. When the heat exchange chamber 2 is filled with an appropriate amount of water and the water outlet 202 is in a closed state, the oxygen passing through the heat exchange chamber 2 and the waste gas exchange heat through water. , thereby increasing the temperature of the oxygen input into the smelting furnace 1, improving the reaction efficiency of the materials in the smelting furnace 1, reducing the reaction time, thereby reducing the processing cost and reducing the exhaust gas temperature; The water in the heat exchange chamber 2 is evaporated into water vapor, which diffuses into the heat exchange tube 7, thereby realizing the heat preservation of the melting furnace 1, and finally discharged into the steam recovery box 8 under the action of the air pump 11 to ensure the reaction of the melting furnace 1. temperature, reducing the heating time required for processing and saving the use of electricity;

Please refer to FIG. 1, the oxygen supply port 3021, the waste gas port 401, the water inlet 201 and the water outlet 202 are all provided with a stop valve 10, and the stop valve 10 is used to control the oxygen supply port 1, the waste gas port 401, the water inlet 201 and the water outlet 202. The open and closed state of the water outlet 202, the air pump 11 is fixedly installed at the connection between the heat exchange tube 7 and the steam recovery box 8, and the air pump 11 provides power for the discharge of steam;

The oxygen supply machine 303, the air pump 11 and the smelting furnace 1 are all electrically connected to the power supply through wires. The oxygen supply machine 303, the air pump 11 and the smelting furnace 1 are all independently connected to the power supply, and the oxygen supply machine 303, the air pump 11 and the smelting furnace 1 are all independently connected to the power supply. The furnace 1 is equipped with a control switch.

Specifically, the waste gas treatment device 5 is a desulfurization tower. After the copper-containing waste residue is treated, a large amount of waste gas such as sulfur dioxide will be generated. Therefore, the waste gas is subjected to heat exchange and desulfurization treatment before being discharged into the environment to reduce environmental pollution.

Specifically, the smelting furnace 1 is an electric heating type smelting furnace 1. The electric heating type smelting furnace 1 has a high internal reaction temperature, and heat transfer is carried out by means of induction heating, and the induction heating method also has the effect of stirring the metal melt. It can accelerate the metal melting process, shorten the melting time and reduce the metal burning loss.

Specifically, the cut-off valve 10 is a manual cut-off valve. The cut-off valve 10 is flanged to the oxygen supply port 301 , the waste gas port 401 , the water inlet 201 and the water outlet 202 respectively, and the cut-off valve 10 is connected to the supply port 301 , the waste gas port 401 , the water inlet 201 and the water outlet 202 The connections between the oxygen port 301 , the exhaust gas port 401 , the water inlet 201 and the water outlet 202 are all sealed.

4, specifically, the steam recovery box 8 is provided with a condensation device 12, and the condensation device 12 in the present invention can be a refrigerator, which liquefies the recovered steam into water, which is convenient for post-processing or transportation.

Specifically, the dust removal device 402 is a bag filter, and the bag filter is used to remove the smoke and dust in the exhaust gas generated during the reaction of the smelting furnace 1 .

When in use, in the initial stage of smelting copper-containing waste slag, inject an appropriate amount of pure water into the heat exchange chamber 2 through the water inlet 201, close the stop valve 10 at the water outlet 202, open the smelting furnace 1 and the oxygen supply machine 303, and follow the smelting process. As the temperature in the furnace 1 increases, the temperature of the exhaust gas in the exhaust pipe 403 also increases. After a period of reaction, the stop valve 10 at the water outlet 202 is opened, and the water vapor diffuses from the water outlet 202 to the heat exchange. In the tube 7, the high-temperature steam in the heat exchange tube 7 exchanges heat with the lining of the smelting furnace 1, plays a role of heat preservation in the smelting furnace 1, and plays a role of circulating heating, and finally is recovered by the steam recovery box 8, and the treated water is still Can be recycled.

Working principle: The utility model uses the high-temperature gas generated in the smelting furnace 1 in the smelting process to exchange heat in the heat exchange chamber 2 with the oxygen in the oxygen supply pipe 302 through the water in the heat exchange chamber 2, so as to realize the addition of oxygen to the blown oxygen. temperature, accelerate the melting of the molten material in the smelting furnace 1, and also can realize the heating of the water in the heat exchange chamber 2 to form steam, open the water outlet 202 of the heat exchange chamber 2, and make the high temperature steam diffuse into the heat exchange tube 7 to realize the The heat preservation effect of the smelting furnace 1, the utility model improves the reaction rate and effect through the recycling of heat, saves the heating time of the smelting furnace 1, reduces the smelting cost, is suitable for the smelting of copper-containing waste slag, energy saving and environmental protection.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description in the specification and the drawings, and the specific connection method of each part adopts the mature bolts, rivets and welding in the prior art. and other conventional means, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection manner in the prior art, which will not be described in detail here.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. an oxygen-enriched hot air copper-containing waste slag smelting furnace, comprising a smelting furnace (1) and a heat exchange chamber (2), characterized in that: the upper end of the smelting furnace (1) is provided with a feeding port (101), and smelting The lower end of the furnace (1) is provided with a discharge port (102), the lower end of the smelting furnace (1) is provided with an oxygen supply port (301), and an oxygen supply pipe (302) is communicated with the inside of the oxygen supply port (301). ), the other end of the oxygen supply pipe (302) is connected to the output end of the oxygen supply machine (303) through the heat exchange chamber (2), and the upper end of the smelting furnace (1) is provided with a waste gas port (401) , the inside of the exhaust gas port (401) is connected with the input end of the dust removal device (402), and the output end of the dust removal device (402) is connected with one end of the exhaust pipe (403), the exhaust pipe (403) The other end of the oxygen supply pipe (302) and the exhaust pipe (403) are arranged in a spiral disk in the heat exchange chamber (2) through the heat exchange chamber (2). , the upper surface of the heat exchange chamber (2) is respectively provided with a water inlet (201) and a water outlet (202), and the water outlet (202) is connected with one end of the heat exchange pipe (7) through the pipe (6), The heat exchange tube (7) is spirally wound in the side wall of the smelting furnace (1). The other end of the heat pipe (7) is communicated with the steam recovery box (8), and the water inlet (201) is communicated with the water pipe (9); The oxygen supply port (301), the waste gas port (401), the water inlet (201) and the water outlet (202) are all provided with stop valves (10), and the heat exchange pipe (7) is connected to the steam recovery box (8). ) is fixedly installed with an air pump (11); The oxygen supply machine (303), the air pump (11) and the smelting furnace (1) are all electrically connected to a power source through wires. 2 . The oxygen-enriched hot air copper-containing waste slag smelting furnace according to claim 1 , wherein the waste gas treatment device ( 5 ) is a desulfurization tower. 3 . 3 . The oxygen-enriched hot air copper-containing waste slag smelting furnace according to claim 1 , wherein the smelting furnace ( 1 ) is an electric heating type smelting furnace. 4 . 4. An oxygen-enriched hot air copper-containing waste slag smelting furnace according to claim 1, characterized in that: the shut-off valve (10) is a manual shut-off valve, and the shut-off valve (10) is respectively connected with the oxygen supply The port (301), the exhaust port (401), the water inlet (201) and the water outlet (202) are connected with flanges. 5 . The oxygen-enriched hot air copper-containing waste slag smelting furnace according to claim 1 , wherein a condensation device ( 12 ) is arranged in the steam recovery box ( 8 ). 6 . 6. The oxygen-enriched hot air copper-containing waste slag smelting furnace according to claim 1, wherein the dust removal device (402) is a bag filter.

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