CN214681635U - Fluidized bed reaction furnace clout clearing device - Google Patents
Fluidized bed reaction furnace clout clearing device Download PDFInfo
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- CN214681635U CN214681635U CN202121140351.4U CN202121140351U CN214681635U CN 214681635 U CN214681635 U CN 214681635U CN 202121140351 U CN202121140351 U CN 202121140351U CN 214681635 U CN214681635 U CN 214681635U
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Abstract
The utility model discloses a fluidized bed reacting furnace clout clearing device belongs to fluidized bed reacting furnace clout and clears away relevant technical field. The reactor comprises a reaction furnace and a feeder, wherein an air inlet and a feed opening are respectively formed in the bottom of the reaction furnace, the feed opening is connected with the feeder, the air inlet is connected with a first air inlet channel, and a second air inlet channel is formed in the first air inlet channel. The excess material in the reaction furnace can be effectively discharged, furnace bricks and a furnace lining have no obvious cracks or damages, and the service life is prolonged.
Description
Technical Field
The utility model relates to a fluidized bed reacting furnace clout clears away relevant technical field, provides a fluidized bed reacting furnace clout clearing device.
Background
Fluidized bed refers to the suspension of a large number of solid particles in a moving fluid, such that the particles have certain apparent characteristics of the fluid. This state of flow-solid contact is referred to as solid fluidization, i.e. fluidized bed. It has two fluidization states, namely a dispersed fluidization state and a condensed fluidization state.
The process and the equipment for regenerating the acid by using the fluidized bed acid are adopted for acid regeneration, when the acid regeneration is carried out by the fluidized bed acid regeneration method, the acid regeneration furnace is required to be used as a reaction furnace for acid regeneration, excess materials are left in the reaction furnace in the using process of the reaction furnace, the excess materials need to be cleaned and cleaned manually, labor is wasted, the service life of the reaction furnace is influenced, and an effective way for cleaning the excess materials in the reaction furnace is unavailable temporarily in the existing stage.
For the fluidized bed acid regenerator, chinese patent application No. 201910261405.3, published as: 2019-07-05, a reactor for acid regeneration of coke oven gas fluidized bed, wherein the bottom of the reactor is additionally provided with a set of gas pressure stabilizing station, the pressure stabilizing station comprises a first gas pipeline arranged at the bottom end of the reactor and a second gas pipeline which is parallel to an air box and is horizontally arranged, an air outlet of the first gas pipeline is communicated with the second gas pipeline which is horizontally arranged, the first gas pipeline is provided with a flow control valve and an electromagnetic valve, a gas inlet end of the first gas pipeline is provided with the flow control valve, the lower end of the flow control valve is provided with the electromagnetic valve, the electromagnetic valve is provided with a pressure gauge close to the junction of the first gas pipeline and the second gas difficult channel, the surface of the pressure gauge is provided with a pressure switch, and the second gas pipeline which is horizontally arranged is connected with a plurality of gas hoses in parallel. The reaction furnace using the acid regeneration process of the coke oven gas fluidized bed is adopted, so that the gas utilization standard is met, the operation cost is greatly reduced, and the maintenance is simple.
The Chinese patent application number is 202010598224.2, and the publication date is: 2020-10-23 relates to a regeneration method of hydrochloric acid waste liquid based on a fluidized bed method, which comprises the following steps: the hydrochloric acid waste liquid enters a Venturi preconcentrator for concentration; feeding the concentrated waste liquid into a fluidized bed reaction furnace for reaction to generate ferric oxide and high-temperature flue gas; after coarse dust removal, the high-temperature flue gas is subjected to waste heat utilization, so that the temperature of the flue gas is reduced to 420-550 ℃; the flue gas after the waste heat utilization is sent into a Venturi preconcentrator to exchange heat with the hydrochloric acid waste liquid so as to obtain concentrated waste liquid; and (4) recovering HCl from the flue gas at the outlet of the Venturi preconcentrator to obtain regenerated acid. Correspondingly, a hydrochloric acid waste liquid regeneration system based on the fluidized bed method is also provided. The waste heat of the high-temperature flue gas at the outlet of the fluidized bed reaction furnace is utilized and then enters the Venturi preconcentrator, so that the waste heat of the high-temperature flue gas can be fully utilized; the temperature of the flue gas at the inlet of the Venturi preconcentrator is controlled within a reasonable range, the traditional operation of adding new water or rinsing water into the Venturi preconcentrator can be cancelled, and the energy consumption required by the regeneration of the hydrochloric acid waste liquid is effectively reduced.
Disclosure of Invention
1. Problems to be solved
The utility model discloses to the problem of the clout of fluidized bed reactor in the clearance of being not convenient for, provide a fluidized bed reactor clout clearing device. The excess material in the reaction furnace can be effectively discharged, furnace bricks and a furnace lining have no obvious cracks or damages, and the service life is prolonged.
2. Technical scheme
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
the utility model discloses a fluidized bed reacting furnace clout clearing device, including reacting furnace and feeder, the reacting furnace bottom is provided with air inlet and feed opening respectively, the feed opening meets with the feeder, the air inlet meets with first inlet channel, be provided with second inlet channel in the first inlet channel.
As a further possible implementation of the present invention, the first air inlet channel and the second air inlet channel are nested, and the second air inlet channel is close to the air inlet to open the air hole.
In a further possible embodiment of the present invention, air is introduced into the first air intake passage.
As a further possible implementation of the present invention, the first air inlet channel is provided with a first valve.
As a further possible implementation of the present invention, the second air inlet channel is filled with fuel gas.
As a further possible embodiment of the invention, the gas is natural gas.
As a further possible implementation of the present invention, a second valve is disposed on the second air inlet channel.
As a further possible implementation of the present invention, the feeder is a screw conveyor.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a fluidized bed reactor clout clearing device, when using the mode row furnace charge that natural gas and combustion-supporting air were blown simultaneously, the remaining material level in the stove is extremely low, and the remaining material level is only about 0.05 meters, and the nozzle homoenergetic is exposed, greatly reduced the intensity of labour of follow-up clearance stove;
(2) the utility model discloses a fluidized bed reactor clout clearing device, through the mode of nesting first inlet channel and second inlet channel, can make natural gas and air more abundant mix, increase the utilization ratio of natural gas;
(3) the utility model discloses a fluidized bed reacting furnace clout clearing device can effectively discharge the clout in the reacting furnace, and stove brick and furnace wall do not have obvious crackle and damage, and life can prolong.
Drawings
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
Fig. 1 is a schematic view of the overall structure of the residual material removing device of the fluidized bed reactor of the present invention.
In the drawings: 1. a reaction furnace; 11. an air inlet; 12. a feeding port; 13. a first air intake passage; 14. a second intake passage; 2. a feeding machine.
Detailed Description
The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to provide the best mode contemplated for carrying out the invention and to enable any person skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.
The detailed description and exemplary embodiments of the invention may be better understood when read in conjunction with the following drawings, where the elements and features of the invention are identified by reference numerals.
Example 1
As shown in fig. 1, the utility model discloses a fluidized bed reactor clout clearing device, including reacting furnace 1 and feeder 2, reacting furnace 1 bottom is provided with air inlet 11 and feed opening 12 respectively, and feed opening 12 meets with feeder 2, and air inlet 11 meets with first inlet channel 13, is provided with second inlet channel 14 in the first inlet channel 13, and first inlet channel 13 and the nested setting of second inlet channel 14, second inlet channel 14 are close to air inlet 11 department and offer the gas pocket. The first air inlet channel 13 and the second air inlet channel 14 are nested, so that air in the first air inlet channel 13 and gas in the second air inlet channel 14 can be fully mixed, and the utilization efficiency of the gas is improved.
Air is introduced into the first air inlet channel 13, and a first valve is arranged on the first air inlet channel 13. The second air intake passage 14 is internally filled with fuel gas (the fuel gas can be natural gas, artificial fuel gas, liquefied petroleum gas, biomass gas and the like), the fuel gas in the embodiment is natural gas, and the second air intake passage 14 is provided with a second valve. The first air inlet channel 13 and the second air inlet channel 14 respectively control the opening and closing of air and natural gas through the first valve and the second valve, and flow control of air and fuel gas can be realized in a mode of arranging a flow meter, so that the utilization rate of the fuel gas is improved. The feeder 2 is a screw conveyor, and the screw conveyor can quickly transfer materials at the feed opening 12, so that the materials are prevented from being accumulated.
The following further describes a fluidized bed reactor residue removing apparatus according to the present application. The inner diameter of the fluidized bed acid regeneration furnace is about 3.1 meters, and Fe is generated during normal production2O3The depth of the particles in the furnace charge is about 0.6 m, and 90 burners are uniformly distributed on the bottom of the furnace. In the direct cleaning mode, the furnace door is opened, the furnace burden is deeply reserved by about 0.35 m, and the labor intensity of manually cleaning the furnace burden after the furnace door is opened is high. And normal temperature cold air is introduced into the high-temperature reaction furnace 1 with the temperature of about 850 ℃, and furnace bricks and a castable liner can generate cracks and damage under the conditions of thermal expansion and cold contraction, so that the service life of the furnace is shortened.
Therefore, when the furnace charge is required to be stopped, natural gas and combustion air are blown in, and the flow of the combustion air is controlled to be 7500-3And h, controlling the furnace temperature at 840 +/-10 ℃, and gradually reducing the flow of the natural gas according to the furnace level and the furnace temperature. The purpose of the air flow control in this interval is to provide oxygen required for the combustion of natural gas, and the excess air and the combustion flame gas flow together maintain the particles in the furnace in a good free-flowing brownian motion state, and can flow to the feed opening 12 and flow out like liquid. The purpose of keeping the temperature at 840 +/-10 ℃ is to enable natural gas to enter the furnace to realize spontaneous combustion, and the continuous combustion heat release provides heat for fluidization in the furnace and keeping the temperature of the furnace; during normal production, the reaction temperature is 850 ℃, so that the 840 ℃ is set to have smaller thermal expansion and cold contraction impact on the furnace. At this time, the opening degree of the screw conveyor was set to 100%. So that the burden moving to the feed opening 12 is transported away as soon as possible.
When the feed opening 12 has no oxidized pellets flowing out, the air quantity of the combustion fan is increased to 9500Nm3Until no material is discharged completely. The natural gas valve (namely the second valve) is closed, and the air quantity of the combustion fan is maintained at 8000Nm3And (3) cooling the interior of the furnace, opening the furnace door when the temperature is reduced to be less than 300 ℃, continuously cooling, and manually feeding the furnace to clean the residual oxidized pellets in the furnace when the temperature of the reaction furnace 1 is reduced to the normal temperature. After operating in this manner, the furnace has a very low stock level and the furnace has less time to cool since there is no high temperature effect of the deeper red hot charge. The residual material level is only about 0.05 m, and the burners can be exposed, so that the labor intensity of subsequent furnace cleaning is greatly reduced. Because the cooling time of the furnace is reduced, the furnace brick and the furnace lining have no obvious cracks and damages, and the service life is prolonged.
Claims (8)
1. The utility model provides a fluidized bed reacting furnace clout clearing device which characterized in that: including reacting furnace (1) and feeder (2), reacting furnace (1) bottom is provided with air inlet (11) and feed opening (12) respectively, feed opening (12) meet with feeder (2), air inlet (11) meet with first inlet channel (13), be provided with second inlet channel (14) in first inlet channel (13).
2. The fluidized bed reactor residue removing device according to claim 1, wherein: the first air inlet channel (13) and the second air inlet channel (14) are nested, and an air hole is formed in the position, close to the air inlet (11), of the second air inlet channel (14).
3. The fluidized bed reactor residue removing device according to claim 1, wherein: air is introduced into the first air inlet channel (13).
4. The fluidized bed reactor residue removing device according to claim 1, wherein: and a first valve is arranged on the first air inlet channel (13).
5. The fluidized bed reactor residue removing device according to claim 1, wherein: and fuel gas is introduced into the second air inlet channel (14).
6. The fluidized bed reactor residue removing device according to claim 5, wherein: the fuel gas is natural gas.
7. The fluidized bed reactor residue removing device according to claim 1, wherein: and a second valve is arranged on the second air inlet channel (14).
8. The fluidized bed reactor residue removing device according to claim 1, wherein: the feeder (2) is a spiral conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140351.4U CN214681635U (en) | 2021-05-25 | 2021-05-25 | Fluidized bed reaction furnace clout clearing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140351.4U CN214681635U (en) | 2021-05-25 | 2021-05-25 | Fluidized bed reaction furnace clout clearing device |
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| Publication Number | Publication Date |
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| CN214681635U true CN214681635U (en) | 2021-11-12 |
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| CN202121140351.4U Active CN214681635U (en) | 2021-05-25 | 2021-05-25 | Fluidized bed reaction furnace clout clearing device |
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2021
- 2021-05-25 CN CN202121140351.4U patent/CN214681635U/en active Active
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Effective date of registration: 20220425 Address after: 230000 Hefei Demonstration Park of Circular Economy in Anhui Province Patentee after: MAGANG Group HOLDING COMPANY L Address before: 231600 East Jingliu road and South Weiwu Road, Hefei Circular Economy Demonstration Park, Anhui Province Patentee before: MAGANG (HEFEI) SHEET Co.,Ltd. |
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| TR01 | Transfer of patent right |