Waste gas treatment device for oxidized pellet production

Abstract

The utility model discloses a waste gas treatment device for oxidized pellet production, which comprises a device main body, a support frame is fixedly assembled at the bottom of the device main body, a gas inlet pipe and a gas outlet pipe are respectively and fixedly connected to the front end and the rear end of the device main body, a treatment pipe is fixedly assembled in an inner cavity of the device main body, and a treatment mechanism is assembled at the end part of the treatment pipe. A driving assembly in transmission connection with the processing mechanism is fixedly assembled on the top of the device body, and a liquid supply pipe connected with the processing mechanism is fixedly assembled in the device body. A rotatable rotating frame is arranged in a treatment pipeline in the device, a liquid outlet frame and a liquid outlet nozzle are driven by the rotating frame to circularly rotate, a solution for treating waste gas is fully mixed with the waste gas in the treatment pipe, and the pretreatment effect on the waste gas is enhanced; waste liquid generated after waste gas treatment can be conveniently collected and recycled, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for oxidation pellet production. Background Art

[0002] Oxidized pellets are one of the important methods for making powder ore agglomerates. First, add an appropriate amount of water and a binder to the powder ore to make green balls with uniform viscosity and sufficient strength. After drying and preheating, they are roasted in an oxidizing atmosphere to agglomerate the green balls to make pellets. Oxidized pellets will produce waste gas during the roasting process in a roasting furnace. The waste gas needs to be dust-removed before it is discharged. If the waste gas is directly passed into dust removal equipment such as bag filters, the dust removal effect is poor and does not meet the subsequent waste gas emission standards. To this end, we propose a waste gas treatment device for the production of oxidized pellets. Utility Model Content

[0003] The purpose of the utility model is to provide a waste gas treatment device for oxidation pellet production to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas treatment device for oxidation pellet production, comprising a device body, a support frame is fixedly installed at the bottom of the device body, an air inlet pipe and an air outlet pipe are fixedly connected to the front and rear ends of the device body respectively, a treatment pipe is fixedly installed in the inner cavity of the device body, a treatment mechanism is installed at the end of the treatment pipe, a driving assembly is fixedly installed on the top of the device body and is transmission-connected to the treatment mechanism, and a liquid supply pipe connected to the treatment mechanism is fixedly installed in the device body.

[0005] Preferably, the processing mechanism includes a rotating frame, which is rotatably connected to the end of the processing tube, the inner cavity of the rotating frame is fixedly equipped with an adapter frame through a support plate, the inner cavity side wall of the rotating frame is fixedly connected to a liquid outlet frame, the side wall of the liquid outlet frame is evenly fixedly equipped with liquid outlet nozzles, and a connecting tube is fixedly equipped between the adapter frame and the liquid outlet frame.

[0006] Preferably, the driving assembly includes a driving motor, which is embedded and installed on the top of the device body. A transmission groove is provided on the top of the device body. The output end of the driving motor is fixedly connected to a driving gear located in the transmission groove. The side wall of the driving gear is meshed with a transmission gear block, and the transmission gear blocks are evenly distributed on the side wall of the rotating frame in a circular shape.

[0007] Preferably, an arc-shaped auxiliary fixing frame is fixedly connected to the inner cavity side wall of the device body.

[0008] Preferably, a liquid outlet groove is provided at the bottom of the processing tube, and a liquid outlet pipe corresponding to the position of the liquid outlet groove is fixedly mounted at the bottom of the device body.

[0009] Compared with the prior art, the beneficial effects of the utility model are: a waste gas treatment device for oxidized pellet production, which is arranged between a roasting furnace and a subsequent waste gas dust removal equipment, pre-treats the waste gas that needs to be dust-removed, so that the subsequent waste gas meets the emission standards after the dust-removal treatment, and a rotatable rotating frame is arranged in the treatment pipeline in the device, and the liquid outlet frame and the liquid outlet nozzle are driven by the rotating frame to circulate and rotate, so that the solution for treating the waste gas is fully mixed with the waste gas in the treatment pipe, thereby enhancing the pretreatment effect of the waste gas, and at the same time, a liquid outlet trough and a liquid outlet pipeline are arranged, which are convenient for collecting and recycling the waste liquid generated after the waste gas treatment, thereby saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the utility model.

[0011] Figure 2 It is a structural schematic diagram of the utility model.

[0012] Figure 3 It is a schematic diagram of the structure inside the processing tube of the utility model.

[0013] Figure 4 It is a structural schematic diagram of the processing mechanism of the utility model.

[0014] In the figure: 1. device body, 2. support frame, 3. air inlet pipe, 4. air outlet pipe, 5. processing pipe, 6. processing mechanism, 61. rotating frame, 62. support plate, 63. adapter frame, 64. liquid outlet frame, 65. liquid outlet nozzle, 66. connecting pipe, 7. liquid supply pipe, 8. driving assembly, 81. driving motor, 82. transmission groove, 83. driving gear, 84. transmission gear block, 9. liquid outlet groove, 10. liquid outlet pipeline, 11. auxiliary support frame, 12. auxiliary fixing frame. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides a technical solution: a waste gas treatment device for oxidized pellet production, including a device body 1, a support frame 2 is fixedly assembled at the bottom of the device body 1, and the device body 1 is supported and fixed by the support frame 2. The front and rear ends of the device body 1 are respectively fixedly connected with an air inlet pipe 3 and an air outlet pipe 4 connected to its inner cavity. The air inlet pipe 3 is used to be connected to the waste gas discharge end of the roasting furnace used for oxidized pellet production, and the waste gas generated in the process of roasting oxidized pellets is collected and entered into the device body 1 for treatment. The air outlet pipe 4 is used to be connected to the air inlet end of the subsequent dust removal equipment, and the dust removal equipment is equipped with a blower. The air inlet end of the dust removal equipment sucks the waste gas treated by the device from the air outlet pipe 4 into the dust removal equipment.

[0017] The inner cavity of the device body 1 is fixedly equipped with a processing tube 5, which is connected to the air inlet pipe 3. The end of the processing tube 5 is equipped with a processing mechanism 6, which cools and desulfurizes the exhaust gas entering the processing tube 5 from the air inlet pipe 3, so that the exhaust gas meets the emission standards after being re-processed by the dust removal equipment.

[0018] like Figure 2 As shown in the figure, the inner cavity of the device body 1 is symmetrically fixed with auxiliary fixing frames 12 on the left and right, and the auxiliary fixing frames 12 are arc-shaped. The auxiliary fixing frames 12 are provided to support and fix the processing tube 5, thereby enhancing the stability of the processing tube 5 in the device body 1.

[0019] like Figure 2 and Figure 4 As shown in , the processing mechanism 6 includes a rotating frame 61, which is rotatably connected to the end of the processing tube 5. The rotating frame 61 is annular, and the inner side wall of the rotating frame 61 is fixedly connected to the adapter frame 63 through the support plate 62. The inner side wall of the rotating frame 61 is fixedly connected to the liquid outlet frame 64, and the side wall of the liquid outlet frame 64 is evenly fixedly equipped with liquid outlet nozzles 65 connected to its inner cavity. The number of liquid outlet frames 64 is four groups, and the four groups of liquid outlet frames 64 are evenly distributed in a circle at the center of the rotating frame 61. A connecting pipe 66 is fixedly installed between the inner cavity of the adapter frame 63 and the liquid outlet frame 64, and the inner cavity of the adapter frame 63 is connected to the inner cavity of the liquid outlet frame 64 through the provided connecting pipe 66, as shown in FIG. Figure 3 As shown in , the inner cavity of the device body 1 is fixedly equipped with a liquid supply tube 7, one end of which is connected to an external liquid supply device, and the other end is inserted into the inner cavity of the adapter frame 63 and is rotatably connected to the adapter frame 63.

[0020] The external supply equipment pressurizes the coolant mixed with the desulfurizer and supplies it to the transfer rack 63 through the liquid supply pipe 7, and then enters each transfer rack 63 through the connecting pipe 66 between the transfer rack 63 and the liquid outlet rack 64, and then sprays it to the exhaust gas in the treatment pipe 5 through the liquid outlet nozzle 65. The exhaust gas in the treatment pipe 5 is cooled, cooled and desulfurized by the coolant mixed with the desulfurizer.

[0021] like Figure 2 As shown in FIG. 1 , a driving assembly 8 is installed between the top of the device body 1 and the rotating frame 61. The driving assembly 8 can make the rotating frame 61 rotate at the end of the processing tube 5, so as to adjust the liquid discharge direction of the liquid discharge nozzle 65 in the liquid discharge frame 64, so that the treatment liquid for the waste gas sprayed by the liquid discharge nozzle 65 can be fully mixed with the waste gas in the processing tube 5;

[0022] The driving assembly 8 includes a driving motor 81, which is fixedly assembled on the top of the device body 1. A transmission groove 82 is opened on the top of the device body 1. The output end of the driving motor 81 is fixedly connected to a driving gear 83 located in the transmission groove 82. The outer wall of the rotating frame 61 is fixedly connected to a transmission gear block 84 evenly distributed in a circumference. The driving gear 83 and the transmission gear block 84 are meshed with each other. The driving motor 81 is electrically connected to an external power supply. After the driving motor 81 is powered on, the driving gear 83 and the transmission gear block 84 cooperate to drive the rotating frame 61 to rotate along the end of the processing tube 5.

[0023] like Figure 3 As shown in the figure, a liquid outlet groove 9 is provided at the bottom of the processing tube 5, and a liquid outlet pipe 10 connected to the inner cavity thereof is fixedly connected to the bottom of the device body 1, and the position of the liquid inlet of the liquid outlet pipe 10 corresponds to the liquid outlet groove 9. By setting the liquid outlet groove 9 and the liquid outlet pipe 10, the coolant after reacting with the exhaust gas and the product after the reaction are collected and discharged externally, which can be connected to the external waste liquid recovery and treatment equipment, so as to facilitate the subsequent recycling and reuse and save resources. An auxiliary support frame 11 is fixedly assembled in the support frame 2, and the auxiliary support frame 11 is set to provide auxiliary support for the liquid outlet pipe 10, thereby increasing the stability between the liquid outlet pipe 10 and the device body 1.

[0024] Working principle: During use, the device is installed between the oxidized pellet roasting furnace and the subsequent dust removal equipment for removing dust from the exhaust gas. The exhaust gas discharged from the roasting furnace enters the treatment pipe 5 through the pipeline and the air inlet pipe 3. The coolant containing the desulfurizer is sprayed into the treatment pipe 5 through the rotating frame 61 rotating in the treatment mechanism 6, and the exhaust gas passing through the treatment pipe 5 is cooled and desulfurized. The treated flue gas enters the subsequent dust removal equipment from the outlet pipe 4. The treatment mechanism 6 set up can ensure the uniform mixing of the coolant and the exhaust gas. The coolant after treating the exhaust gas and the reaction products enter the liquid outlet pipe 10 from the liquid outlet tank 9, and are discharged to the external recovery equipment through the liquid outlet pipe 10. The coolant is recycled and reused to save resources.

Claims

1. A waste gas treatment device for oxidation pellet production, comprising a device body (1), a support frame (2) fixedly mounted at the bottom of the device body (1), characterized in that: The front and rear ends of the device body (1) are respectively fixedly connected with an air inlet pipe (3) and an air outlet pipe (4); the inner cavity of the device body (1) is fixedly equipped with a processing tube (5); the end of the processing tube (5) is equipped with a processing mechanism (6); the top of the device body (1) is fixedly equipped with a driving component (8) that is transmission-connected to the processing mechanism (6); and the inside of the device body (1) is fixedly equipped with a liquid supply pipe (7) that is connected to the processing mechanism (6); The processing mechanism (6) comprises a rotating frame (61), the rotating frame (61) is rotatably connected to the end of the processing tube (5), the inner cavity of the rotating frame (61) is fixedly equipped with an adapter frame (63) through a support plate (62), the inner cavity side wall of the rotating frame (61) is fixedly connected with a liquid outlet frame (64), the side wall of the liquid outlet frame (64) is evenly fixedly equipped with liquid outlet nozzles (65), and a connecting pipe (66) is fixedly equipped between the adapter frame (63) and the liquid outlet frame (64).

2. The waste gas treatment device for oxidation pellet production according to claim 1 is characterized in that: The driving assembly (8) comprises a driving motor (81), the driving motor (81) being embedded and installed on the top of the device body (1), the top of the device body (1) being provided with a transmission slot (82), the output end of the driving motor (81) being fixedly connected to a driving gear (83) located in the transmission slot (82), the side wall of the driving gear (83) being meshed with a transmission tooth block (84), and the transmission tooth block (84) being evenly distributed on the side wall of the rotating frame (61) in a circumferential manner.

3. The waste gas treatment device for oxidation pellet production according to claim 1 is characterized in that: An arc-shaped auxiliary fixing frame (12) is fixedly connected to the inner cavity side wall of the device body (1).

4. The waste gas treatment device for oxidation pellet production according to claim 1 is characterized in that: A liquid outlet groove (9) is provided at the bottom of the processing tube (5), and a liquid outlet pipeline (10) corresponding to the position of the liquid outlet groove (9) is fixedly mounted at the bottom of the device body (1).

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