A desulfurization and denitration smoke exhaust device for environmental protection

Abstract

The utility model discloses an environmental protection is with desulfurization and denitrification flue gas emission device, including flue, the outer wall below of flue is connected with the smoke pipe, the inner wall of smoke pipe is installed with fan, the outer wall below of flue is fixedly connected with support, environmental protection is with desulfurization and denitrification flue gas emission device still includes filter device, and filter device is installed in the inner wall of flue. The utility model relates to flue gas emission device technical field, through the cooperation of installation shell, fixed bolster and honeycomb board, when the spraying device sprays medicine water in the smoke pipe, medicine water will be wet in stone layer and honeycomb board top, when gas passes through stone layer and honeycomb board, will make the contact area of gas and medicine water become big, thereby make sulfur and nitre etc. in gas remove, solved the gas when discharging through flue, will lead to the liquid of spraying and gas contact time too short, thereby lead to the effect of sulfur and nitre in gas removal reduces the problem.

Description

Technical Field

[0001] This utility model relates to the technical field of smoke exhaust devices, specifically an environmentally friendly desulfurization and denitrification smoke exhaust device. Background Technology

[0002] Factory boilers produce a large amount of flue gas during combustion, which usually contains compounds containing sulfur and nitrates. These gases need to be desulfurized and denitrified before being released to avoid pollution to the atmosphere caused by direct emissions.

[0003] In existing operations, spray heads are usually installed inside the tower to purify the flue gas by spraying the desulfurization and denitrification liquids into contact with the flue gas, ensuring that the discharged flue gas does not have an impact on the environment.

[0004] However, in actual use, due to the narrow space inside the flue, when the gas is discharged through the flue, the contact time between the sprayed liquid and the gas is too short, which leads to a reduction in the desulfurization and denitrification effect in the gas. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an environmentally friendly desulfurization and denitrification flue gas device, which solves the problem that in actual use, due to the limited space inside the flue, the contact time between the sprayed liquid and the gas is too short when the gas is discharged through the flue, resulting in a reduction in the desulfurization and denitrification effect in the gas.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly desulfurization and denitrification flue gas device, comprising a flue, an inlet pipe connected to the lower outer wall of the flue, a fan installed on the inner wall of the inlet pipe, and a bracket fixedly connected to the lower outer wall of the flue. The environmentally friendly desulfurization and denitrification flue gas device also includes a filter device installed on the inner wall of the flue; a spraying device installed above the inner wall of the flue; a dust removal device installed at the top of the flue; and a collection device installed at the bottom of the flue. The filter device ensures sufficient contact between the gas and the chemical solution, the spraying device sprays the chemical solution, the dust removal device removes impurities from the gas, and the collection device collects the wastewater.

[0007] Preferably, the filtration device includes a mounting shell fixedly connected to the inner wall of the flue; a fixing bracket inserted into the inner wall of the mounting shell; a honeycomb panel fixedly connected to the lower inner wall of the fixing bracket; a stone layer laid on top of the honeycomb panel; and a drip column fixedly connected to the bottom of the honeycomb panel. Through the cooperation of the honeycomb panel and the stone layer, the gas in the flue is allowed to fully contact the chemical solution. The mounting shell and the fixing bracket support the honeycomb panel, and the drip column causes the wastewater to drip down rapidly.

[0008] Preferably, the spraying device includes a spray pipe disposed above the mounting housing and fixedly connected to the inner wall of the flue; a connecting pipe is connected to one end of the spray pipe extending to the outside of the flue; the output end of the pump body is connected to the end of the connecting pipe; a medicine tank is fixedly connected to the outer wall of the pump body, and its bottom is fixedly connected to the top of the flue inlet pipe and connected to the input end of the pump body; wherein, through the cooperation of the connecting pipe and the pump body, the medicine in the medicine tank is sprayed into the flue through the spray pipe.

[0009] Preferably, the dust removal device includes a baffle plate fixedly connected to the upper inner wall of the flue; a filter screen disposed above the filter screen; an installation tube sleeved onto the outer wall of the filter screen and fixedly connected to the top of the flue; and a fixing frame threadedly connected to the inner wall of the installation tube and pressed against the top of the filter screen. Through the cooperation of the baffle plate and the filter screen, the installation tube and the fixing frame remove impurities from the gas.

[0010] Preferably, the collection device includes a collection box installed at the bottom of the flue; a fixing ring threadedly connected to the outer wall of the collection box and fixedly connected at the top to the bottom of the flue; and a screen installed above the inner wall of the collection box; wherein, through the cooperation of the collection box and the fixing ring, the screen removes impurities from the wastewater.

[0011] Beneficial effects

[0012] This utility model provides an environmentally friendly desulfurization and denitrification flue gas exhaust device. It has the following beneficial effects: Through the cooperation of the mounting shell, fixing frame, and honeycomb panel, when the spraying device sprays chemicals into the flue pipe, the chemicals soak into the stone layer and honeycomb panel. When the gas passes through the stone layer and honeycomb panel, the contact area between the gas and the chemicals increases, thereby removing sulfur and nitrates from the gas. This solves the problem that when gas is discharged through the flue, the contact time between the sprayed liquid and the gas is too short, resulting in a reduction in the desulfurization and denitrification effect.

[0013] Through the combination of baffles, filters, and installation pipes, after the gas comes into contact with the chemical solution, residual water droplets in the gas will be discharged upwards with the gas. When the gas passes through the baffles, the water vapor in the gas will condense into water droplets and fall onto the stone layer. This can prevent the water vapor in the gas from corroding the filter screen. At the same time, the filter screen will remove impurities in the gas, solving the problem of residual impurities in the gas affecting the environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 3 for Figure 1 A structural diagram of the central flue, mounting pipe, and filter screen;

[0017] Figure 4 for Figure 1 A structural diagram showing the mounting shell, fixing frame, and honeycomb panel.

[0018] Figure 5 for Figure 1 A structural diagram of the central flue, support frame, and collection box.

[0019] In the diagram: 1. Flue; 2. Inlet pipe; 3. Fan; 4. Bracket; 5. Filter device; 51. Mounting housing; 52. Fixing frame; 53. Honeycomb panel; 54. Stone layer; 55. Drip column; 6. Spraying device; 61. Spray pipe; 62. Connecting pipe; 63. Pump body; 64. Chemical tank; 7. Dust removal device; 71. Baffle plate; 72. Filter screen; 73. Mounting pipe; 74. Fixing frame; 8. Collection device; 81. Collection box; 82. Fixing ring; 83. Screen. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In actual use, due to the narrow space inside the flue, when the gas is discharged through the flue, the contact time between the sprayed liquid and the gas is too short, which reduces the desulfurization and denitrification effect in the gas.

[0022] In view of this, the present invention provides an environmentally friendly desulfurization and denitrification flue gas device, which solves the problem that in actual use, due to the narrow space inside the flue, the contact time between the sprayed liquid and the gas is too short when the gas is discharged through the flue, thus reducing the desulfurization and denitrification effect in the gas.

[0023] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0024] Example 1: By Figure 1-5It is known that an environmentally friendly desulfurization and denitrification flue gas exhaust device includes a flue 1, an inlet pipe 2 connected to the lower outer wall of the flue 1, a fan 3 installed on the inner wall of the inlet pipe 2, and a bracket 4 fixedly connected to the lower outer wall of the flue 1. The environmentally friendly desulfurization and denitrification flue gas exhaust device also includes a filter device 5, a spraying device 6, and a dust removal device 7. The filter device 5 is installed on the inner wall of the flue 1; the spraying device 6 is installed above the inner wall of the flue 1; the dust removal device 7 is installed at the top of the flue 1; and the collection device 8 is installed at the bottom of the flue 1. The filter device 5 ensures that the gas and the chemical solution are in full contact, the spraying device 6 sprays the chemical solution, the dust removal device 7 removes impurities from the gas, and the collection device 8 collects the wastewater.

[0025] In the specific implementation process, it is worth noting that the fan 3 causes the gas in the inlet pipe 2 to quickly enter the flue 1, accelerating the gas discharge. The filter device 5 ensures that the gas comes into contact with the medicine, while the spraying device 6 wets the filter device 5. The dust removal device 7 filters out impurities in the gas to avoid environmental pollution, and the collection device 8 collects the wastewater to prevent it from remaining in the flue 1.

[0026] Furthermore, the filtration device 5 includes a mounting shell 51, a fixing frame 52, a honeycomb panel 53, a stone layer 54, and a drip column 55. The mounting shell 51 is fixedly connected to the inner wall of the flue 1; the fixing frame 52 is inserted into the inner wall of the mounting shell 51; the honeycomb panel 53 is fixedly connected to the lower part of the inner wall of the fixing frame 52; the stone layer 54 is laid on the top of the honeycomb panel 53; and the drip column 55 is fixedly connected to the bottom of the honeycomb panel 53. Through the cooperation of the honeycomb panel 53 and the stone layer 54, the gas in the flue 1 is fully contacted with the chemical solution. The mounting shell 51 and the fixing frame 52 support the honeycomb panel 53, and the drip column 55 causes the wastewater to drip down quickly.

[0027] In the specific implementation process, it is worth noting that the honeycomb panel 53 and the stone layer 54 can increase the contact area between the medicine and the gas, thereby making the removal of impurities such as sulfur and nitrate in the gas more thorough. Furthermore, the honeycomb panel 53 and the stone layer 54 are supported by the fixing frame 52 and the mounting shell 51, ensuring that they are easy to replace.

[0028] Furthermore, the spraying device 6 includes a spray pipe 61, a connecting pipe 62, a pump body 63, and a chemical tank 64. The spray pipe 61 is disposed above the mounting housing 51 and is fixedly connected to the inner wall of the flue 1. The connecting pipe 62 is connected to one end of the spray pipe 61 extending to the outside of the flue 1. The output end of the pump body 63 is connected to the end of the connecting pipe 62. The chemical tank 64 is fixedly connected to the outer wall of the pump body 63, and its bottom is fixedly connected to the top of the flue pipe 2 and connected to the input end of the pump body 63. Through the cooperation of the connecting pipe 62 and the pump body 63, the chemical solution in the chemical tank 64 is sprayed into the flue 1 through the spray pipe 61.

[0029] In the specific implementation process, it is worth noting that the medicine tank 64 contains substances that can remove nitrates and sulfur from the gas, and the medicine is sprayed into the flue 1 through the spray pipe 61 via the pump body 63 and the connecting pipe 62, so that the gas comes into contact with the medicine and the stone layer 54 and honeycomb plate 53 become wet, thereby increasing the contact area between the gas and the medicine and better removing sulfur and nitrates from the medicine.

[0030] Example 2: From Figure 1-5 It is known that the dust removal device 7 includes a baffle plate 71, a filter screen 72, an installation pipe 73, and a fixing frame 74. The baffle plate 71 is fixedly connected to the upper inner wall of the flue 1; the filter screen 72 is disposed above the filter screen 72; the installation pipe 73 is sleeved on the outer wall of the filter screen 72 and fixedly connected to the top of the flue 1; the fixing frame 74 is threadedly connected to the inner wall of the installation pipe 73 and abuts against the top of the filter screen 72; wherein, through the cooperation of the baffle plate 71 and the filter screen 72, the installation pipe 73 and the fixing frame 74 remove impurities from the gas.

[0031] In the specific implementation process, it is worth noting that the deflector plate 71 causes the water vapor in the gas to condense into water droplets and be discharged. This can prevent the water vapor in the gas from corroding the filter screen 72. Moreover, the filter screen 72 is fixed by the fixing frame 74 to prevent the filter screen 72 from reducing its filtering effect. This can remove impurities in the gas and prevent the gas from affecting the environment.

[0032] Furthermore, the collection device 8 includes a collection box 81, a fixing ring 82, and a screen 83. The collection box 81 is installed at the bottom of the flue 1; the fixing ring 82 is threaded to the outer wall of the collection box 81 and its top is fixedly connected to the bottom of the flue 1; the screen 83 is installed on the upper inner wall of the collection box 81; wherein, through the cooperation of the collection box 81 and the fixing ring 82, the screen 83 removes impurities from the wastewater.

[0033] In the specific implementation process, it is worth noting that when the honeycomb panel 53 and the stone layer 54 remove sulfur and nitrate from the gas, the generated impurities and wastewater will drip down to the bottom of the flue 1 and enter the collection box 81. When entering the collection box 81, the screen 83 will remove the impurities in the wastewater, which can avoid inconvenience in subsequent treatment.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly desulfurization and denitrification flue gas device, comprising a flue (1), characterized in that: The lower part of the outer wall of the flue (1) is connected to the flue pipe (2), the inner wall of the flue pipe (2) is equipped with a fan (3), and the lower part of the outer wall of the flue (1) is fixedly connected to the bracket (4). The environmental protection desulfurization and denitrification flue gas device also includes: A filter device (5) is installed on the inner wall of the flue (1); A spraying device (6) is installed on the upper part of the inner wall of the flue (1); A dust removal device (7) is installed on top of the flue (1); A collection device (8) is installed at the bottom of the flue (1); The gas and the medicine are brought into full contact through the filtration device (5), the spraying device (6) sprays the medicine, the dust removal device (7) removes impurities from the gas, and the collection device (8) collects the wastewater.

2. The environmentally friendly desulfurization and denitrification flue gas emission device according to claim 1, characterized in that: The filter device (5) includes: Mounting housing (51) is fixedly connected to the inner wall of flue (1); The fixing bracket (52) is inserted into the inner wall of the mounting shell (51); The honeycomb panel (53) is fixedly connected to the lower inner wall of the fixing frame (52); A stone layer (54) is laid on top of the honeycomb panel (53); A drip column (55) is fixedly connected to the bottom of the honeycomb panel (53); The honeycomb panel (53) and the stone layer (54) work together to allow the gas in the flue (1) to come into full contact with the medicine. The mounting shell (51) and the fixing frame (52) support the honeycomb panel (53), and the drip column (55) causes the wastewater to drip down quickly.

3. The environmentally friendly desulfurization and denitrification flue gas emission device according to claim 1, characterized in that: The spraying device (6) includes: The nozzle (61) is located above the mounting housing (51) and is fixedly connected to the inner wall of the flue (1); A connecting pipe (62) is connected to one end of the nozzle (61) extending to the outside of the flue (1); The pump body (63) has its output end connected to the end of the connecting pipe (62); The medicine tank (64) is fixedly connected to the outer wall of the pump body (63), and its bottom is fixedly connected to the top of the smoke inlet pipe (2) and connected to the input end of the pump body (63); The medicine in the medicine tank (64) is sprayed into the flue (1) through the spray pipe (61) by the cooperation of the connecting pipe (62) and the pump body (63).

4. The environmentally friendly desulfurization and denitrification flue gas emission device according to claim 1, characterized in that: The dust removal device (7) includes: Baffle (71) is fixedly connected to the upper part of the inner wall of the flue (1); A filter screen (72) is disposed above the filter screen (72); The installation tube (73) is fitted onto the outer wall of the filter screen (72) and fixedly connected to the top of the flue (1); The fixing frame (74) is threaded to the inner wall of the mounting tube (73) and abuts against the top of the filter screen (72); The baffle (71) and filter (72) work together to remove impurities from the gas through the mounting pipe (73) and the fixing frame (74).

5. The environmentally friendly desulfurization and denitrification flue gas emission device according to claim 1, characterized in that: The collecting device (8) includes: Collection box (81) is installed at the bottom of flue (1); The fixing ring (82) is threaded to the outer wall of the collection box (81) and its top is fixedly connected to the bottom of the flue (1); A screen (83) is installed on the upper inner wall of the collection box (81); The collection box (81) and the fixing ring (82) work together to remove impurities from the wastewater using the screen (83).

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