A hazardous waste incineration deacidification system homogenizer

Abstract

The utility model provides a kind of dangerous waste incineration deacidification system material distributor, comprising: feed inlet, shell, first discharge port, second discharge port, driving motor, rotating shaft, first blade and second blade;One end of shell is fixedly connected to one end of feed inlet, one end of first discharge port is fixedly connected to the surface of shell, one end of second discharge port is fixedly connected to the surface of shell;Driving motor is fixedly installed in one end of shell.The utility model provides a kind of dangerous waste incineration deacidification system material distributor, by driving motor cooperation rotating shaft, first blade, second blade, first discharge port and second discharge port, the lime powder that feed inlet enters is transported to two sides, by first discharge port and second discharge port, lime powder is transported into reaction tower, to reduce the entry of air, increase the uniform delivery of lime powder into deacidification tower, and rapidly react with flue gas, solve the problem of flue gas volume increase caused by the increase of additional air.

Description

Technical Field

[0001] This utility model relates to the field of incinerators, and in particular to a feeder for a hazardous waste incineration deacidification system. Background Technology

[0002] The flue gas generated from the incineration of hazardous waste in the incinerator is then cooled and cooled rapidly before entering a dry deacidification tower for deacidification.

[0003] A dry desulfurization tower is a purification device mainly used to remove gaseous pollutants from flue gas. The reactant is lime powder, which is fed into the dry desulfurization tower by pneumatic conveying. The lime powder is stored in a lime silo and is supplied quantitatively by a feeder. A Roots blower sprays the lime powder into the dry desulfurization tower through pipelines. The lime powder reacts chemically with SO2, SO3, HCl, and HF in the flue gas to generate CaSO3, CaSO4, CaCl2, CaF2, etc., thereby removing some of the acidic gases from the flue gas.

[0004] The reactants, such as lime powder, are conveyed into the dry desulfurization tower via pneumatic conveying, and the conveying air increases the total amount of flue gas.

[0005] Therefore, it is necessary to provide a feeder for a hazardous waste incineration desulfurization system to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a feeder for a hazardous waste incineration deacidification system, which solves the problem that current methods of feeding reactants such as lime powder into dry deacidification towers via pneumatic conveying increase the total amount of flue gas.

[0007] To solve the above-mentioned technical problems, this utility model provides a feeder for a hazardous waste incineration deacidification system, comprising: a feed inlet, a shell, a first discharge port, a second discharge port, a drive motor, a rotating shaft, a first blade, and a second blade;

[0008] One end of the housing is fixedly connected to one end of the feed inlet, one end of the first discharge port is fixedly connected to the surface of the housing, and one end of the second discharge port is fixedly connected to the surface of the housing;

[0009] The drive motor is fixedly installed at one end of the housing, the rotating shaft is rotatably connected to the inside of the housing, the first blade is fixedly connected to the surface of the rotating shaft, and the second blade is fixedly connected to the surface of the rotating shaft.

[0010] Preferably, one end of the feed inlet is fixedly connected to the center of the top of the housing.

[0011] Preferably, one end of the first discharge port and one end of the second discharge port are respectively fixedly connected to the two ends of one side of the housing.

[0012] Preferably, the output end of the drive motor is connected to one end of the rotating shaft via a coupling.

[0013] Preferably, both the first blade and the second blade are helical blades, and the first blade and the second blade are arranged in opposite directions.

[0014] Preferably, the first blade and the second blade rotate in opposite directions, which can convey the lime powder that has entered the housing to both sides.

[0015] Compared with related technologies, the feeder for a hazardous waste incineration deacidification system provided by this utility model has the following beneficial effects:

[0016] This utility model provides a feeder for a hazardous waste incineration desulfurization system. Through a drive motor, a rotating shaft, a first blade, a second blade, a first discharge port, and a second discharge port, lime powder entering from the feed inlet is conveyed to both sides and then conveyed into the reaction tower through the first and second discharge ports. This reduces the amount of air entering the system, increases the uniform delivery of lime powder into the desulfurization tower, and allows for rapid reaction with the flue gas, thus solving the problem of increased flue gas volume caused by the addition of extra air. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of a feeder for a hazardous waste incineration deacidification system provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structural schematic of the shell.

[0019] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the shell.

[0020] The numbers in the diagram are: 1. Feed inlet, 2. Shell, 3. First discharge port, 4. Second discharge port, 5. Drive motor, 6. Rotating shaft, 7. First blade, 8. Second blade. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of a preferred embodiment of a feeder for a hazardous waste incineration deacidification system provided by this utility model; Figure 2 for Figure 1 The diagram shows the structural schematic of the shell. Figure 3 for Figure 1The diagram shows a cross-sectional view of the shell. A feeder for a hazardous waste incineration deacidification system includes: an inlet 1, a shell 2, a first discharge port 3, a second discharge port 4, a drive motor 5, a rotating shaft 6, a first blade 7, and a second blade 8.

[0023] One end of the housing 2 is fixedly connected to one end of the feed inlet 1, one end of the first discharge outlet 3 is fixedly connected to the surface of the housing 2, and one end of the second discharge outlet 4 is fixedly connected to the surface of the housing 2.

[0024] The drive motor 5 is fixedly installed at one end of the housing 2, the rotating shaft 6 is rotatably connected to the inside of the housing 2, the first blade 7 is fixedly connected to the surface of the rotating shaft 6, and the second blade 8 is fixedly connected to the surface of the rotating shaft 6.

[0025] One end of the feed inlet 1 is fixedly connected to the center of the top of the housing 2.

[0026] The shell 2 is located between the humidifier and the reaction tower. The lime powder falling from the outlet of the humidifier enters the interior of the feed inlet 1, which is located at the center of the shell 2.

[0027] The reaction tower includes a flue gas inlet section, an ash outlet, an acceleration section, a deacidification section, a lime feed inlet, and a flue gas outlet. The flue gas inlet section is a 90° bend type, where the flue gas from the quench tower enters the reaction tower and, after a 90° turn, enters the acceleration section. The ash outlet is located at the lower part of the bend in the flue gas inlet section to discharge falling fly ash. The flue gas is accelerated through the acceleration section and enters the deacidification section. The flow rate of the flue gas in the acceleration section is designed to ensure that the quicklime falling in the deacidification section is carried by the high-speed flue gas to the deacidification section for reaction. The lime feed inlet is located at the lower part of the deacidification section and the upper part of the acceleration expansion section. The humidified lime powder flowing in from the first discharge port 3 and the second discharge port 4 slides down the uniformly distributed plate with a certain inclination angle and falls into the acceleration contraction section chamber, where it is carried by the high-speed flue gas to the deacidification section. Through the reasonable design of the deacidification reaction tower, it is ensured that the flue gas can completely carry the reactant and carry it for reaction, with virtually no residue falling to the bottom of the tower, thus eliminating reactant waste, saving reactant consumption in production, and reducing production costs.

[0028] In the deacidification section, the flue gas reacts with the carried lime powder. After being humidified, a water film forms on the surface of the deacidifying agent particles. Acidic pollutants (SOx, HCl, HF, etc.) in the flue gas react efficiently with the deacidifying agent in contact with the water film, generating CaSO3, CaSO4, CaCl2, CaF2, etc. The humidifying water of the deacidifying agent evaporates into the flue gas under the action of the high-temperature flue gas, which can reduce the flue gas temperature. The reacted flue gas is discharged through the flue gas outlet and enters the next process equipment. The reaction equations of pollutants and deacidifying agents in the flue gas are as follows:

[0029] SOX +Ca(OH)2→CaSO X +H2O;

[0030] 2HCl + Ca(OH)₂ → CaCl₂ + H₂O;

[0031] 2HF + Ca(OH)₂ → CaF₂ + H₂O;

[0032] The flue gas flow rate entering the semi-dry reaction tower is 23380.41 Nm3 / h (wet basis), and the SO2 content in the flue gas is 26.25 Nm3 / h. 3 / h (3207.8mg / Nm 3 The HCl content was 26.29 Nm³ / h (1832.3 mg / Nm³). 3 The HF content is 12.28 Nm. 3 / h (469.0mg / Nm 3 ).

[0033] Based on process calculations, with the addition of 168.2 kg / h of 90% pure quicklime powder, 8.41 kg / h of humidifying water (5% of the quicklime powder weight), and 8 L / h of compressed air for physicochemical treatment, and considering a 1% system air leakage rate in the process design, the flue gas volume at the reaction tower outlet is 23733.6 Nm³. 3 / h (wet basis), of which the SO2 content in the flue gas is 4.46 Nm 3 / h (537.2mg / Nm 3 The removal rate reached 83%; the HCl content was 3.94 Nm. 3 / h (270.8mg / Nm 3 The removal rate reached 85%, and the HF content was 1.84 Nm. 3 / h (69.3mg / Nm 3 The removal rate reached 85%.

[0034] One end of the first discharge port 3 and the second discharge port 4 are respectively fixedly connected to the two ends of one side of the housing 2.

[0035] Lime powder is conveyed into the reaction tower through the first discharge port 3 and the second discharge port 4, thereby reducing the entry of air and increasing the uniform delivery of lime powder into the desulfurization tower for rapid reaction with flue gas.

[0036] The output end of the drive motor 5 is connected to one end of the rotating shaft 6 via a coupling.

[0037] The amount of lime conveyed is controlled according to the frequency of the drive motor 5.

[0038] Both the first blade 7 and the second blade 8 are helical blades, and the first blade 7 and the second blade 8 are arranged in opposite directions.

[0039] The first blade 7 and the second blade 8 rotate in opposite directions, which can transport the lime powder that has entered the housing 2 to both sides.

[0040] A rotating shaft 6 is installed inside the housing 2. A first blade 7 and a second blade 8 are installed on the rotating shaft 6. The first blade 7 and the second blade 8 are spiral blades. With the center of the feed inlet 1 as the dividing point, the first blade 7 and the second blade 8 on both sides rotate in opposite directions, which can transport lime from the feed inlet 1 to both sides.

[0041] The working principle of the feeder in the hazardous waste incineration deacidification system provided by this utility model is as follows:

[0042] When in use, the lime powder inside the humidifier is discharged into the inlet 1 and enters the housing 2 through the inlet, located in the center position.

[0043] At the same time, the drive motor 5 is started, which drives the rotating shaft 6 to rotate to one side, thereby driving the rotating shaft 6 to rotate the first blade 7 and the second blade 8 connected to it to rotate to one side, conveying the lime powder that has entered the shell 2 to both sides, and finally discharging it into the interior of the small reaction tower through the first discharge port 3 and the second discharge port 4 on one side of the shell 2.

[0044] Compared with related technologies, the feeder for a hazardous waste incineration deacidification system provided by this utility model has the following beneficial effects:

[0045] This utility model provides a feeder for a hazardous waste incineration desulfurization system. Through a drive motor 5, a rotating shaft 6, a first blade 7, a second blade 8, a first discharge port 3, and a second discharge port 4, lime powder entering from the feed inlet 1 is conveyed to both sides. The lime powder is then conveyed to the reaction tower through the first discharge port 3 and the second discharge port 4, thereby reducing the entry of air and increasing the uniform delivery of lime powder into the desulfurization tower for rapid reaction with the flue gas. This solves the problem of increased flue gas volume caused by the addition of extra air.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A feeder for a hazardous waste incineration desulfurization system, characterized in that, include: Feed inlet, housing, first discharge port, second discharge port, drive motor, rotating shaft, first blade and second blade; One end of the housing is fixedly connected to one end of the feed inlet, one end of the first discharge port is fixedly connected to the surface of the housing, and one end of the second discharge port is fixedly connected to the surface of the housing; The drive motor is fixedly installed at one end of the housing, the rotating shaft is rotatably connected to the inside of the housing, the first blade is fixedly connected to the surface of the rotating shaft, and the second blade is fixedly connected to the surface of the rotating shaft.

2. The feeder for a hazardous waste incineration desulfurization system according to claim 1, characterized in that, One end of the feed inlet is fixedly connected to the center of the top of the housing.

3. The feeder for a hazardous waste incineration desulfurization system according to claim 1, characterized in that, One end of the first discharge port and one end of the second discharge port are respectively fixedly connected to the two ends of one side of the housing.

4. The feeder for a hazardous waste incineration desulfurization system according to claim 1, characterized in that, The output end of the drive motor is connected to one end of the rotating shaft via a coupling.

5. A feeder for a hazardous waste incineration desulfurization system according to claim 1, characterized in that, Both the first blade and the second blade are helical blades, and the first blade and the second blade are arranged in opposite directions.

6. A feeder for a hazardous waste incineration desulfurization system according to claim 2, characterized in that, The first blade and the second blade rotate in opposite directions, which can transport the lime powder that has entered the shell to both sides.

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