Dry quenching waste gas treatment equipment

Abstract

The utility model discloses a dry quenching waste gas treatment equipment relates to dry quenching waste gas treatment technical field, including the casing, the bottom side wall of casing is provided with the air inlet pipe, the air inlet pipe is connected with the dispersing gas pipe, is provided with a plurality of exhaust port towards below on the dispersing gas pipe, the top of dispersing gas pipe is provided with a plurality of attachment plate, the attachment plate includes the frame of setting on the casing inner wall, is provided with a plurality of interval arrangement's attachment net board on the frame, is provided with attachment burr on the attachment net board, the top of casing is provided with the spray pipe, the spray pipe is located the top of attachment plate, the air outlet pipe is provided with on the casing side wall upper portion opposite the air inlet pipe. The attachment net board of utility model discloses, attachment burr, make the lime stone slurry of spraying adhere to above in the form of small droplet, effectively increased the reaction time with waste gas, has promoted the desulfurization effect.

Description

Technical Field

[0001] This utility model relates to the field of dry quenching coke exhaust gas treatment technology, and in particular to a dry quenching coke exhaust gas treatment device. Background Technology

[0002] Coke quenching is a specialized term in the coal coking process, referring to the cooling of red-hot coke to a temperature suitable for transportation and storage. Dry quenching refers to a method of quenching coke by using inert gas to cool it down. Dry quenching generates a large amount of waste gas containing smoke and sulfur dioxide, which must be purified due to its polluting nature. Currently, most dry quenching waste gas treatment devices directly introduce the waste gas into the device through the inlet to mix and react with limestone slurry sprayed from top to bottom (the limestone slurry reacts with the sulfur dioxide in the waste gas to produce calcium sulfate and carbon dioxide). Because the waste gas itself is in a gaseous state, and the sprayed limestone slurry droplets quickly fall to the bottom of the device and gather together under their own gravity, the reaction time with the waste gas in the air as small droplets is limited, thus restricting the desulfurization efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a dry quenching coke exhaust gas treatment device to solve the problem mentioned in the background art that the limestone slurry sprayed from top to bottom has a limited reaction time with the exhaust gas in the form of small droplets in the air.

[0004] The present invention adopts the following technical solution:

[0005] This utility model discloses a dry quenching coke exhaust gas treatment device, including a shell, an air inlet pipe provided on the bottom side wall of the shell, the air inlet pipe being connected to a dispersion gas pipe, and the dispersion gas pipe being provided with multiple downward-facing exhaust ports.

[0006] Multiple attachment plates are provided above the dispersion tube. Each attachment plate includes a frame disposed on the inner wall of the shell. Multiple attachment mesh plates are disposed on the frame at intervals. Attachment burrs are provided on the attachment mesh plates.

[0007] A spray pipe is provided on the top of the housing, and the spray pipe is located above the attachment plate;

[0008] An exhaust pipe is provided on the upper part of the side wall of the housing opposite to the intake pipe.

[0009] Preferably, the attachment plate is arranged perpendicular to the side wall of the shell, and the attachment plate is arranged in layers along the vertical direction;

[0010] A channel area is formed between the attachment mesh plates, with the attachment mesh plate of the upper attachment plate located directly above the channel area of ​​the lower attachment plate, and the channel area of ​​the upper attachment plate located directly above the lower attachment plate.

[0011] Preferably, the attachment burrs are disposed on the upper and lower surfaces of the attachment mesh plate.

[0012] Preferably, the end of the attached burr is provided with a barb.

[0013] Preferably, the dispersion air tube is a plurality of tubular structures arranged side by side; a blocking valve is provided inside the dispersion air tube, and the blocking valve is located on the side of the exhaust port away from the intake pipe.

[0014] Preferably, the blocking petal is a fan-shaped plate structure, and the outer arc edge of the blocking petal is fixedly connected to the inner wall of the dispersing gas tube;

[0015] The blocking valve is arranged at an angle to the inner wall of the dispersing air tube, and the top of the blocking valve faces the side closer to the air inlet tube.

[0016] Preferably, a filter box is provided on the side wall of the housing, and one side of the filter box is open;

[0017] The filter box is provided with a plurality of parallel first activated carbon filter plates and second activated carbon filter plates, which are arranged in an alternating manner and are parallel to the opening.

[0018] The first activated carbon filter plate is fixedly installed on the top wall of the filter box, and a gap is left between the first activated carbon filter plate and the bottom wall of the filter box;

[0019] The second activated carbon filter plate is fixedly installed on the bottom wall of the filter box, and a gap is left between the first activated carbon filter plate and the top wall of the filter box;

[0020] The side wall of the filter box opposite the opening is connected to the air outlet pipe.

[0021] Preferably, the bottom of the housing is provided with a waste discharge port.

[0022] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0023] This invention features an attachment mesh and attachment burrs, which allow the sprayed limestone slurry to adhere to the mesh in the form of small droplets. This effectively increases the reaction time with the exhaust gas, ensuring full utilization of the limestone slurry and improving the desulfurization effect. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of the dry quenching coke exhaust gas treatment equipment of this utility model;

[0026] Figure 2 This is a schematic diagram of the attached burr structure in the dry quenching coke exhaust gas treatment equipment of this utility model;

[0027] Figure 3 This is a schematic diagram of the dispersion gas pipe structure in the dry quenching coke exhaust gas treatment equipment of this utility model;

[0028] Figure 4 This is a schematic diagram of the spray pipe structure in the dry quenching coke exhaust gas treatment equipment of this utility model;

[0029] Figure 5 This is a schematic diagram of the filter box structure in the dry quenching coke exhaust gas treatment equipment of this utility model. Figure 1 ;

[0030] Figure 6 This is a schematic diagram of the filter box structure in the dry quenching coke exhaust gas treatment equipment of this utility model. Figure 2 .

[0031] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Inlet pipe; 3. Dispersing pipe; 3-1. Exhaust port; 3-2. Baffle plate; 4. Attachment plate; 4-1. Frame; 4-2. Attachment mesh plate; 4-3. Attachment burrs; 4-3-1. Barb; 4-4. Channel area; 5. Spray pipe; 6. Outlet pipe; 7. Filter box; 7-1. First activated carbon filter plate; 7-2. Second activated carbon filter plate; 7-3. Opening; 8. Waste discharge port. Detailed Implementation

[0032] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1 As shown in the figure, this embodiment discloses a dry quenching coke exhaust gas treatment device, including a shell 1. An air inlet pipe 2 is provided on the bottom side wall of the shell 1 for the exhaust gas after the dust removal process to enter. The air inlet pipe 2 is connected to a dispersion pipe 3, which is a plurality of parallel tubular structures, and a plurality of downward-facing exhaust ports 3-1 are provided on the dispersion pipe 3.

[0034] Multiple attachment plates 4 are installed above the dispersion pipe 3. Each attachment plate 4 includes a frame 4-1 installed on the inner wall of the shell 1. Multiple spaced attachment mesh plates 4-2 are installed on the frame 4-1, and attachment burrs 4-3 are installed on the attachment mesh plates 4-2. A spray pipe 5 is installed at the top of the shell 1, located above the attachment plates 4. The spray pipe 5 sprays limestone slurry. The limestone slurry adheres to the attachment mesh plates 4-2, which can increase the reaction time with the exhaust gas. At the same time, the attachment burrs 4-3 can enhance the adhesion effect of the limestone slurry.

[0035] An exhaust pipe 6 with a regulating valve is provided on the upper part of the side wall of the housing 1 opposite to the intake pipe 2, for discharging the gas after the reaction. In this embodiment, the bottom of the housing 1 is set in an inclined shape, and the housing 1 is set on the ground by a bracket. A waste discharge port 8 with a valve is provided at the lowest point of the bottom of the housing 1 for discharging the waste liquid after the reaction.

[0036] In this embodiment, the attachment plates 4 are arranged perpendicular to the side wall of the shell 1, and are arranged in layers along the vertical direction. A channel area 4-4 is formed between adjacent attachment mesh plates 4-2 on the same attachment plate 4 for the upward passage of exhaust gas and the downward passage of sprayed limestone slurry. The attachment mesh plate 4-2 of the upper attachment plate 4 is located directly above the channel area 4-4 of the lower attachment plate 4, and the channel area 4-4 of the upper attachment plate 4 is located directly above the lower attachment plate 4. Each layer of attachment plates 4 is installed in a staggered arrangement as described above. If too much limestone slurry accumulates on the attachment mesh plate 4-2 of the first layer of attachment plate 4 from top to bottom, it will fall downwards, passing through the channel area 4-4 of the second layer of attachment plate 4 and landing on the attachment mesh plate 4-2 of the third layer of attachment plate 4. This ensures the best possible adhesion of the limestone slurry. The limestone slurry adheres to the attachment mesh plate 4-2 and the attachment burrs 4-3 in the form of small droplets, thereby increasing the effective reaction time with the exhaust gas and preventing the sprayed liquid from quickly falling to the bottom and accumulating.

[0037] like Figure 2 As shown, the attachment burrs 4-3 are set on the upper and lower surfaces of the attachment mesh plate 4-2, and the ends of the attachment burrs 4-3 are also provided with barbs 4-3-1. This double-layer attachment burr 4-3 design and the barb 4-3-1 design can effectively enhance the adhesion effect of droplets on the attachment burrs 4-3.

[0038] like Figure 3 As shown, a baffle 3-2 is installed inside the dispersion pipe 3, located on the side of the exhaust port 3-1 away from the intake pipe 2. The baffle 3-2 is a fan-shaped plate structure, with its outer arc edge fixedly connected to the inner wall of the dispersion pipe 3. The baffle 3-2 is inclined to the inner wall of the dispersion pipe 3, with its top facing towards the side closer to the intake pipe 2. When exhaust gas enters the dispersion pipe 3 through the intake pipe 2, it encounters the baffle 3-2 during its flow and flows downward from the exhaust port 3-1. The downward-facing design of the exhaust port 3-1 prevents limestone slurry from falling directly onto the exhaust port 3-1 and causing blockage. Simultaneously, the impact of the exhaust gas against the baffle 3-2 during its flow causes some unremoved solid particles to fall downwards due to the impact of the baffle 3-2.

[0039] like Figure 4As shown, the structure of the spray pipe 5 is a ring structure with multiple nozzles. The spray pipe 5 is connected to the external pump body and limestone slurry and sprays out small droplets. The spray pipe 5 is an existing technology and will not be described in detail here.

[0040] like Figure 1 and Figure 5 As shown, a filter box 7 is provided on the side wall of the housing 1. One side of the filter box 7 is provided with an opening 7-3. The side wall of the filter box 7 opposite to the opening 7-3 is connected to the air outlet pipe 6.

[0041] like Figure 5 and Figure 6 As shown, the filter box 7 is provided with multiple parallel first activated carbon filter plates 7-1 and second activated carbon filter plates 7-2. The first activated carbon filter plates 7-1 and second activated carbon filter plates 7-2 are arranged alternately, and the first activated carbon filter plates 7-1 and second activated carbon filter plates 7-2 are parallel to the opening 7-3.

[0042] The first activated carbon filter plate 7-1 is fixedly installed on the top wall of the filter box 7, with a gap between the first activated carbon filter plate 7-1 and the bottom wall of the filter box 7; the second activated carbon filter plate 7-2 is fixedly installed on the bottom wall of the filter box 7, with a gap between the first activated carbon filter plate 7-1 and the top wall of the filter box 7.

[0043] The gas, after being treated by the limestone slurry reaction, enters the filter box 7 through the open end 7-3, and then passes through layers of filtration by the first activated carbon filter plate 7-1 and the second activated carbon filter plate 7-2 before finally being discharged from the outlet pipe 6. Since the gas itself contains very few toxic and harmful impurities after the limestone slurry reaction treatment, the staggered arrangement of the first activated carbon filter plate 7-1 and the second activated carbon filter plate 7-2 avoids completely sealing the perimeter of the activated carbon filter plates within the filter box 7, which would reduce the rate of gas discharge. Simultaneously, if the activated carbon filter plates were completely sealed within the filter box 7, the innermost activated carbon filter plate would adsorb too much, while the outermost activated carbon filter plate would adsorb too little, thus causing the innermost activated carbon filter plate to reach the end of its service life more quickly. The staggered arrangement of the first activated carbon filter plate 7-1 and the second activated carbon filter plate 7-2 in this design can mitigate this effect to some extent.

[0044] The working process of this utility model is as follows:

[0045] First, the exhaust gas, after the dust removal process, enters the housing 1 through the exhaust port 3-1 of the inlet pipe 2 and the dispersion pipe 3. Simultaneously, the spray pipe 5 is opened, and the limestone slurry adheres to the attachment mesh plate 4-2, attachment burrs 4-3, and barbs 4-3-1 in the form of small droplets. This increases the effective reaction time with the exhaust gas and prevents the sprayed liquid from quickly falling to the bottom and accumulating. The reacted gas enters the filter box 7 through the opening 7-3, and then passes through the first activated carbon filter plate 7-1 and the second activated carbon filter plate 7-2 for filtration, finally exiting through the outlet pipe 6. The reacted waste liquid is discharged through the waste outlet 8.

[0046] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A dry quenching coke exhaust gas treatment device, characterized in that: Includes a housing (1), an air inlet pipe (2) is provided on the bottom side wall of the housing (1), the air inlet pipe (2) is connected to a dispersion pipe (3), and the dispersion pipe (3) is provided with a plurality of downward-facing exhaust ports (3-1). The dispersion tube (3) is provided with multiple attachment plates (4) above it. The attachment plate (4) includes a frame (4-1) provided on the inner wall of the shell (1). Multiple attachment mesh plates (4-2) are provided on the frame (4-1) at intervals. Attachment burrs (4-3) are provided on the attachment mesh plates (4-2). A spray pipe (5) is provided on the top of the housing (1), and the spray pipe (5) is located above the attachment plate (4); An exhaust pipe (6) is provided on the upper part of the side wall of the housing (1) opposite to the intake pipe (2).

2. The dry quenching coke exhaust gas treatment equipment according to claim 1, characterized in that: The attachment plate (4) is arranged perpendicular to the side wall of the shell (1), and the attachment plate (4) is arranged in layers along the vertical direction; The attachment mesh plates (4-2) form a channel area (4-4), with the attachment mesh plate (4-2) of the upper attachment plate (4) located directly above the channel area (4-4) of the lower attachment plate (4), and the channel area (4-4) of the upper attachment plate (4) located directly above the lower attachment plate (4).

3. The dry quenching coke exhaust gas treatment equipment according to claim 1, characterized in that: The attachment burrs (4-3) are provided on the upper and lower surfaces of the attachment mesh plate (4-2).

4. The dry quenching coke exhaust gas treatment equipment according to claim 3, characterized in that: The end of the attached burr (4-3) is provided with a barb (4-3-1).

5. The dry quenching coke exhaust gas treatment equipment according to claim 1, characterized in that: The dispersion tubes (3) are multiple tubular structures arranged side by side; The dispersion pipe (3) is provided with a blocking valve (3-2), which is located on the side of the exhaust port (3-1) away from the intake pipe (2).

6. The dry quenching coke exhaust gas treatment equipment according to claim 5, characterized in that: The blocking petal (3-2) is a fan-shaped plate structure, and the outer arc edge of the blocking petal (3-2) is fixedly connected to the inner wall of the dispersing gas tube (3); The blocking valve (3-2) is arranged at an angle to the inner wall of the dispersing air pipe (3), and the top of the blocking valve (3-2) faces the side close to the air inlet pipe (2).

7. The dry quenching coke exhaust gas treatment equipment according to claim 1, characterized in that: A filter box (7) is provided on the side wall of the housing (1), and one side of the filter box (7) is provided with an opening (7-3). The filter box (7) is provided with a plurality of parallel first activated carbon filter plates (7-1) and second activated carbon filter plates (7-2), the first activated carbon filter plates (7-1) and the second activated carbon filter plates (7-2) are arranged in an alternating manner, and the first activated carbon filter plates (7-1) and the second activated carbon filter plates (7-2) are parallel to the opening (7-3). The first activated carbon filter plate (7-1) is fixedly installed on the top wall of the filter box (7), and a gap is left between the first activated carbon filter plate (7-1) and the bottom wall of the filter box (7); The second activated carbon filter plate (7-2) is fixedly installed on the bottom wall of the filter box (7), and there is a gap between the first activated carbon filter plate (7-1) and the top wall of the filter box (7); The side wall of the filter box (7) opposite the opening (7-3) is connected to the air outlet pipe (6).

8. The dry quenching coke exhaust gas treatment equipment according to claim 1, characterized in that: The bottom of the housing (1) is provided with a waste outlet (8).

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