Carbon reduction device for integrally treating organic three wastes in smelting environment

Abstract

The utility model discloses a carbon reduction device for integrally treating organic three wastes in a smelting environment, which comprises a converter provided with a flue gas inlet, a wastewater inlet, a waste oil inlet and a reducing agent inlet; the waste flue gas conveying system is communicated with the flue gas inlet; the wastewater storage and atomization blowing system is communicated with the wastewater inlet; the waste oil storage and atomization blowing system is communicated with the waste oil inlet; the reducing agent storage and injection system is communicated with the reducing agent inlet; wherein the reducing agent storage and injection system is connected with the waste flue gas conveying system, and boosting gas of the reducing agent storage and injection system is waste flue gas. The device disclosed by the utility model not only can realize integrated treatment of the three wastes, but also can convert the three wastes into high-calorific-value coal gas, so that the negative-energy steelmaking level is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection, and more specifically, to a carbon reduction device for integrated treatment of three organic wastes in a smelting environment. Background Art

[0002] As a high-energy-consuming product, steel will generate a large amount of wastewater, waste slag and waste gas during its production process. If the three wastes fail to meet the prescribed emission standards and are discharged into the environment, it will pollute the environment. In the prior art, the treatment of the three wastes is generally carried out through incinerators, which consumes a lot of energy, incurs additional costs, and is not conducive to energy conservation and emission reduction. Utility Model Content

[0003] One purpose of the utility model is to provide a carbon reduction device for integrated treatment of three organic wastes in a smelting environment, so as to at least solve the above-mentioned problem.

[0004] In order to achieve the purpose and other advantages of the utility model, a carbon reduction device for integrated treatment of three organic wastes in a smelting environment is provided, comprising: a converter, on which a flue gas inlet, a waste water inlet, a waste oil inlet and a reducing agent inlet are provided; a waste flue gas conveying system, which is connected to the flue gas inlet; a waste water storage and atomization spraying system, which is connected to the waste water inlet; a waste oil storage and atomization spraying system, which is connected to the waste oil inlet; a reducing agent storage and spraying system, which is connected to the reducing agent inlet; wherein,

[0005] The reducing agent storage and injection system is connected to the waste flue gas delivery system, and the booster gas of the reducing agent storage and injection system is the waste flue gas.

[0006] Preferably, in the carbon reduction device for integrated treatment of three organic wastes under the smelting environment, the wastewater storage and atomization spraying system and the waste oil storage and atomization spraying system are respectively connected to the waste flue gas conveying system, and the atomization medium of the wastewater storage and atomization spraying system and the waste oil storage and atomization spraying system are both waste flue gas.

[0007] Preferably, in the carbon reduction device for integrated treatment of three organic wastes under a smelting environment, the waste flue gas conveying system includes a compressor and a pipeline distribution system, the air inlet end of the pipeline distribution system is connected to the air outlet of the compressor, and the air outlet end is respectively connected to the flue gas inlet, the reducing agent storage and injection system, the wastewater storage and atomization injection system and the waste oil storage and atomization injection system.

[0008] Preferably, in the carbon reduction device for integrated treatment of three organic wastes under a smelting environment, the reducing agent storage and injection system comprises a silo, a silo pump, a buffer silo, a feeder, a mixer and a first spray gun connected in sequence, wherein the first spray gun is detachably connected to the reducing agent inlet, and a booster gas inlet is provided on the mixer, and the booster gas inlet is connected to the pipeline distribution system.

[0009] Preferably, in the carbon reduction device for integrated treatment of three organic wastes under a smelting environment, the wastewater storage and atomization spraying system comprises a wastewater storage tank, a wastewater filter, a wastewater booster pump and a second spray gun connected in sequence, wherein the second spray gun is detachably connected to the wastewater inlet, the second spray gun is an atomization spray gun, and a wastewater atomization medium inlet is provided on the second spray gun, and the wastewater atomization medium inlet is connected to the pipeline distribution system.

[0010] Preferably, in the carbon reduction device for integrated treatment of three organic wastes under a smelting environment, the waste oil storage and atomization spraying system comprises a waste oil storage tank, a waste oil filter, a waste oil booster pump and a third spray gun connected in sequence, wherein the third spray gun is detachably connected to the waste oil inlet, the third spray gun is an atomization spray gun, and a waste oil atomization medium inlet is provided on the third spray gun, and the waste oil atomization medium inlet is connected to the pipeline distribution system.

[0011] The utility model at least has the following beneficial effects:

[0012] The device of the utility model is provided with a flue gas inlet, a waste water inlet, a waste oil inlet and a reducing agent inlet on the converter, and the waste flue gas conveying system, the waste water storage and atomizing spraying system, the waste oil storage and atomizing spraying system and the reducing agent storage and spraying system are connected with the corresponding inlets, so as to directly spray the waste flue gas, waste oil, waste water and reducing agent materials into the converter, utilize the high temperature heat generated by metal smelting to cause a reduction reaction which is beneficial to negative energy steelmaking, transform / reduce / cracking the flue gas / organic waste water / waste oil into high calorific value coal gas, greatly improve the level of negative energy steelmaking, and have important significance for energy conservation and emission reduction, cost reduction and efficiency improvement and environmental pollution reduction of steel enterprises.

[0013] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a carbon reduction device for integrated treatment of three organic wastes in a smelting environment according to an embodiment of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a waste smoke conveying system of another embodiment of the utility model;

[0016] Figure 3 It is a structural schematic diagram of a reducing agent storage and injection system of another embodiment of the utility model;

[0017] Figure 4 It is a structural schematic diagram of a wastewater storage and atomization spraying system of another embodiment of the utility model;

[0018] Figure 5 It is a structural schematic diagram of a waste oil storage and atomization spraying system according to another embodiment of the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the embodiments and drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figure 1 As shown, an embodiment of the utility model provides a carbon reduction device for integrated treatment of three organic wastes under a smelting environment, comprising: a converter 1, on which a flue gas inlet 7, a wastewater inlet, a waste oil inlet and a reducing agent inlet are provided; a waste flue gas conveying system 2, which is connected to the flue gas inlet; a wastewater storage and atomization spraying system 3, which is connected to the wastewater inlet; a waste oil storage and atomization spraying system 4, which is connected to the waste oil inlet; a reducing agent storage and spraying system 5, which is connected to the reducing agent inlet; wherein the reducing agent storage and spraying system 5 is connected to the waste flue gas conveying system 2, and the booster gas of the reducing agent storage and spraying system 5 is waste flue gas.

[0023] In the above embodiment, the carbon reduction device for integrated treatment of three organic wastes under smelting environment includes a converter 1, a waste flue gas conveying system 2, a waste water storage and atomization spraying system 3, a waste oil storage and atomization spraying system 4 and a reducing agent storage and spraying system 5. The converter 1 is provided with a flue gas inlet 7, a waste water inlet, a waste oil inlet, a reducing agent inlet, an oxygen gun muzzle and a charging port, and has a vaporization cooling function, which can meet the normal smelting requirements of the converter. The air inlet chimney 6 of the waste flue gas conveying system 2 is connected, and the air outlet is connected to the flue gas inlet and the reducing agent storage and spraying system 5 respectively, so as to transport part of the waste flue gas to the converter 1 for temperature conversion, and part of the waste flue gas is used as a booster gas for the reducing agent storage and spraying system 5, and the reducing agent is transported in a dilute phase through the reducing agent inlet into the converter 1 for coal gasification reaction. The wastewater storage and atomization spraying system 3 and the waste oil storage and atomization spraying system 4 are connected to the wastewater inlet and the waste oil inlet respectively, and the wastewater and waste oil are introduced into the converter 1 in the form of atomization spraying, and coal gasification reaction and high-temperature cracking gasification reaction are carried out in the converter 1.

[0024] The device of the utility model can make the carbon dioxide in the waste flue gas react with the reducing agent in the high temperature (1300-1500℃) and high dust environment generated by smelting, generate twice the volume of carbon monoxide, and convert the waste flue gas originally discharged directly into a high calorific value fuel. The following reactions occur during the conversion process: 1. The physical sensible heat of the converter gas is absorbed and stored as the chemical heat of carbon monoxide, 2. The water in the waste water reacts with the reducing agent to increase the calorific value of the output, 3. The waste oil is cracked from the long molecular chain organic matter into short-chain high calorific value compounds that are gaseous at room temperature. That is, the utility model can make full use of the high temperature environment generated in the converter smelting process, and integrate the waste flue gas, waste oil, and organic wastewater to convert them into high calorific value gas.

[0025] It is estimated that each ton of steel can process 20Nm of waste gas. 3 , 1kg of organic wastewater, 1kg of waste oil, produces 20Nm 3 Converter gas with high calorific value.

[0026] In another embodiment, Figure 1 As shown, the wastewater storage and atomization spraying system 3 and the waste oil storage and atomization spraying system 4 are respectively connected to the waste flue gas conveying system 2, and the atomization medium of the wastewater storage and atomization spraying system 3 and the waste oil storage and atomization spraying system 4 are both waste flue gas.

[0027] In this embodiment, waste flue gas is used as the atomization medium for waste water and waste oil, which can reduce the intake of air and is beneficial to improving the calorific value of coal gas while making full use of the waste flue gas.

[0028] In another embodiment, Figure 2-Figure 5As shown, the waste flue gas conveying system 2 includes a compressor and a pipeline distribution system, the air inlet end of the pipeline distribution system is connected to the air outlet of the compressor, and the air outlet end is respectively connected to the flue gas inlet, the reducing agent storage and spraying system 5, the waste water storage and atomization spraying system 3 and the waste oil storage and atomization spraying system 4.

[0029] Specifically, the waste flue gas conveying system 2 includes compressor No. 1 8, compressor No. 2 9, pipelines, regulating valve group 10, metering equipment and temperature and pressure detection equipment. After the waste flue gas containing a large amount of CO2 gas is pressurized to a suitable pressure by the compressor, a part of it is sent to the flue gas inlet 7 through the pipeline to enter the converter flue for temperature conversion; another part is sent to the mixer 17 of the reducing agent storage and injection system 5 as a booster gas, so that the reducing agent in the mixer 17 is transported by the flue gas in a dilute phase through the first spray gun 18 detachably connected to the converter 1 to enter the high-temperature converter flue for coal gasification reaction; another part is sent to the second spray gun 26 of the waste water storage and atomization spraying system 3 and the third spray gun 22 of the waste oil storage and atomization spraying system 4 as atomization media for waste water and waste oil, so that the waste water and waste oil are atomized into extremely small droplets, which is convenient for the decomposition of organic components in the waste water and waste oil.

[0030] In this embodiment, the waste flue gas is pressurized by a compressor so that the waste flue gas is injected into the converter through the flue gas inlet, thereby reducing the air intake at the furnace mouth, replenishing the carbon source through flue gas absorption, breaking through the upper limit of converter gas recovery, and facilitating the realization of a higher level of negative energy steelmaking.

[0031] In another embodiment, Figure 2 , Figure 3 As shown, the reducing agent storage and injection system 5 includes a silo 13, a silo pump 14, a buffer silo 15, a feeder 16, a mixer 17 and a first spray gun 18 which are connected in sequence, wherein the first spray gun 18 is detachably connected to the reducing agent inlet, and a booster gas inlet is provided on the mixer 17, and the booster gas inlet is connected to the pipeline distribution system.

[0032] Specifically, the reducing agent is transported to the storage station by a tank truck in powder form, and is transported to the silo 13 of the storage station through a pipeline using the pneumatic conveying device provided by the tank truck. The reducing agent in the silo 13 is pneumatically conveyed to the buffer silo 15 in dense phase by the silo pump 14 at the bottom of the silo 13. The reducing agent in the buffer silo 15 is accurately fed to the pneumatic conveying pipeline using a spray tank + a disc variable frequency rotary feeder 16, and the reducing agent is transported to the mixer 17 in dense phase conveying mode; the reducing agent in the mixer 17 is transported to the converter 1 in a dilute phase manner through the first spray gun 18 on the converter 1 which is detachably connected (the detachable connection mode includes but is not limited to flange connection, the same below) through the pressurized waste flue gas, and reacts with the waste water in a water-gas reaction, and the spraying direction of the first spray gun 18 is opposite to the airflow direction of the converter flue gas.

[0033] In this embodiment, a mixer is provided and connected to the pipeline distribution system of the waste flue gas conveying system so that the waste flue gas can be used as a booster gas for the reducing agent, thereby avoiding the use of nitrogen without calorific value as a conveying carrier. This is beneficial to improving the calorific value of coal gas while making full use of the waste flue gas.

[0034] In another embodiment, Figure 4 As shown, the wastewater storage and atomization spraying system 3 includes a wastewater storage tank 23, a wastewater filter 24, a wastewater booster pump 25 and a second spray gun 26 connected in sequence, wherein the second spray gun 26 is detachably connected to the wastewater inlet, the second spray gun 26 is an atomization spray gun, and the second spray gun 26 is provided with a wastewater atomization medium inlet, and the wastewater atomization medium inlet is connected to the pipeline distribution system.

[0035] Specifically, two wastewater storage tanks 23 are provided. Organic wastewater containing harmful substances such as phenol is first precipitated and stored in the two wastewater storage tanks 23. A drain valve is provided at the bottom of the wastewater storage tank 23, which can be switched regularly to clean impurities. A two-stage filtering device is provided on the outlet pipe of the wastewater storage tank 23 to further filter impurities. The purified organic wastewater is transported to the wastewater inlet through the wastewater booster pump 25, and enters the converter flue through the second spray gun 26 detachably connected to the converter 1 to react with the reducing agent for coal gasification. The second spray gun 26 is provided with a wastewater atomization medium inlet, which is connected to the pipeline distribution system, and the waste flue gas is introduced into the second spray gun 26 as an atomization medium. The wastewater booster pump 25 is also provided with a variable frequency speed regulating device, which is combined with a metering instrument to realize automatic adjustment of the organic wastewater injection amount.

[0036] In this embodiment, the wastewater is pressurized and atomized by a wastewater booster pump and a second spray gun, and then sent into a high-temperature converter to decompose the organic matter in the wastewater into short-chain combustibles. The water therein reacts with the reducing agent to produce water gas to generate hydrogen and carbon monoxide, and the physical sensible heat of the converter gas is converted into chemical heat, thereby improving the gas quality and saving sewage treatment costs.

[0037] In another embodiment, Figure 5 As shown, the waste oil storage and atomization spraying system 4 includes a waste oil storage tank 19, a waste oil filter 20, a waste oil booster pump 21 and a third spray gun 22 connected in sequence, wherein the third spray gun 22 is detachably connected to the waste oil inlet, the third spray gun 22 is an atomization spray gun, and the third spray gun 22 is provided with a waste oil atomization medium inlet, and the waste oil atomization medium inlet is connected to the pipeline distribution system.

[0038] Specifically, two waste oil storage tanks 19 are provided, and the waste oil first enters the two waste oil storage tanks 19 for sedimentation and storage. A drain valve is provided at the bottom of the waste oil storage tank 19, which can be switched regularly to clean impurities. The outlet pipe of the waste oil storage tank 19 is provided with a two-stage filtering device to further filter impurities. The purified waste oil is transported to the waste oil inlet through the waste oil booster pump 21, and enters the converter flue through the third spray gun 22 detachably connected to the converter 1 for high-temperature cracking and gasification reaction. The third spray gun 22 is provided with a waste oil atomizing medium inlet, which is connected to the pipeline distribution system, and the waste flue gas is introduced into the third spray gun as an atomizing medium. The waste oil booster pump 21 is also provided with a variable frequency speed regulating device, which is combined with a metering instrument to realize automatic adjustment of the waste oil injection amount.

[0039] In this embodiment, the waste oil is pressurized and atomized by the waste oil pressure pump and the third spray gun, and then sent to the high-temperature converter to crack the waste oil, so that the long molecular chain organic matter is cracked into short-chain high calorific value compounds that are gaseous at room temperature. The separated carbon black reacts with carbon dioxide as a supplementary reducing agent to generate carbon monoxide, thereby turning waste into treasure.

[0040] The number of equipment and the processing scale described here are used to simplify the description of the utility model. The application, modification and variation of the carbon reduction device for integrated treatment of organic waste in a smelting environment of the utility model are obvious to those skilled in the art.

[0041] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A carbon reduction device for integrated treatment of three organic wastes under smelting environment, characterized in that: include: A converter is provided with a flue gas inlet, a waste water inlet, a waste oil inlet and a reducing agent inlet; a waste flue gas conveying system, which is in communication with the flue gas inlet; A wastewater storage and atomization spraying system, which is connected to the wastewater inlet; A waste oil storage and atomization spraying system, which is connected to the waste oil inlet; A reducing agent storage and injection system is connected to the reducing agent inlet; wherein, The reducing agent storage and injection system is connected to the waste flue gas delivery system, and the booster gas of the reducing agent storage and injection system is the waste flue gas.

2. The carbon reduction device for integrated treatment of three organic wastes under smelting environment according to claim 1, characterized in that: The wastewater storage and atomization spraying system and the waste oil storage and atomization spraying system are respectively connected to the waste flue gas conveying system, and the atomization medium of the wastewater storage and atomization spraying system and the waste oil storage and atomization spraying system are both waste flue gas.

3. The carbon reduction device for integrated treatment of three organic wastes under smelting environment as claimed in claim 2, characterized in that: The waste flue gas conveying system includes a compressor and a pipeline distribution system, the air inlet end of the pipeline distribution system is connected to the air outlet of the compressor, and the air outlet end is respectively connected to the flue gas inlet, the reducing agent storage and spraying system, the wastewater storage and atomization spraying system and the waste oil storage and atomization spraying system.

4. The carbon reduction device for integrated treatment of three organic wastes under smelting environment as claimed in claim 3 is characterized in that: The reducing agent storage and injection system includes a silo, a silo pump, a buffer silo, a feeder, a mixer and a first spray gun which are connected in sequence, wherein the first spray gun is detachably connected to the reducing agent inlet, and a booster gas inlet is provided on the mixer, and the booster gas inlet is connected to the pipeline distribution system.

5. The carbon reduction device for integrated treatment of three organic wastes under smelting environment as claimed in claim 3, characterized in that: The wastewater storage and atomization spraying system comprises a wastewater storage tank, a wastewater filter, a wastewater booster pump and a second spray gun which are connected in sequence, wherein the second spray gun is detachably connected to the wastewater inlet, the second spray gun is an atomization spray gun, and the second spray gun is provided with a wastewater atomization medium inlet, and the wastewater atomization medium inlet is connected to the pipeline distribution system.

6. The carbon reduction device for integrated treatment of three organic wastes under smelting environment as claimed in claim 3, characterized in that: The waste oil storage and atomization spraying system comprises a waste oil storage tank, a waste oil filter, a waste oil pressure pump and a third spray gun which are connected in sequence, wherein the third spray gun is detachably connected to the waste oil inlet, the third spray gun is an atomization spray gun, and the third spray gun is provided with a waste oil atomization medium inlet, and the waste oil atomization medium inlet is connected to the pipeline distribution system.

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