Flue gas emission system of industrial furnace

Abstract

The utility model discloses an industrial furnace flue gas emission system, which comprises an industrial furnace, the industrial furnace is provided with a flue gas emission interface, the flue gas emission interface is communicated with a first pipeline, the first pipeline is communicated with a cooling spray tower, an exhaust port of the cooling spray tower is communicated with an activated carbon adsorption box, the activated carbon adsorption box is communicated with a chimney, and the chimney is communicated with the flue gas emission interface. According to the flue gas emission system of the industrial furnace, the flue gas is cooled, dedusted, defogged, desulphurized and dephosphorized, qualified flue gas is emitted, the environment-friendly standard is met, emergency maintenance operation can be carried out under the non-stop condition, a corresponding invalid activated carbon net cage is replaced, online maintenance operation is achieved, the scheme is economical and applicable, and the cost is low. The smoke exhaust system is suitable for a common industrial furnace, in particular to a smoke exhaust system suitable for a roasting furnace.

Description

Industrial furnace flue gas emission system Technical Field

[0001] This utility model relates to the field of flue gas emission technology, specifically to an industrial furnace flue gas emission system. Background Technology

[0002] Currently, in order to meet the requirements of improving environmental protection, sulfur removal, phosphorus removal and dust removal are usually required for flue gas emissions from roasting furnaces. In view of this, the company has developed the technical solution of this utility model based on the actual situation of flue gas emissions from roasting furnaces. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art and provides an industrial furnace flue gas emission system.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: an industrial furnace flue gas emission system, including an industrial furnace, the industrial furnace having a flue gas emission interface, the flue gas emission interface being connected to a first pipe, the first pipe being connected to a cooling spray tower, the exhaust port of the cooling spray tower being connected to an activated carbon adsorption box, and the activated carbon adsorption box being connected to a chimney.

[0005] Preferably, the activated carbon adsorption box is connected to an induced draft fan, and the induced draft fan is connected to a chimney.

[0006] Preferably, the first pipe is provided with an air inlet, which is connected to a cooling air fan.

[0007] Preferably, the cooling spray tower includes a tower body and a water storage and supply spray cooling device. The water storage and supply spray cooling device is arranged outside the tower body. The tower body is provided with a tower body air inlet. The tower body is provided with a first water leakage layer inside. The tower body air inlet is connected to a first pipe and is located below the first water leakage layer. A first sprayer is provided above the first water leakage layer. A second water leakage layer is provided above the first sprayer. A second sprayer is provided above the second water leakage layer. A demisting layer is provided above the second sprayer. The demisting layer is connected to the exhaust port of the cooling spray tower. Both the first sprayer and the second sprayer are connected to the water storage and supply spray cooling device.

[0008] Preferably, the first leakage layer, the second leakage layer, and the demisting layer are all hollow sphere packing layers.

[0009] Preferably, the water storage supply spray cooling device is connected to the bottom of the tower.

[0010] Preferably, the activated carbon adsorption box includes an adsorption box body, the left side of the adsorption box body is connected to the exhaust port of the cooling spray tower, the right side of the adsorption box body is connected to the chimney, the adsorption box body is provided with an inspection window, and the adsorption box body is provided with a detachable activated carbon mesh box, and the activated carbon mesh box contains activated carbon.

[0011] Preferably, the activated carbon mesh boxes are arranged in a three-dimensional matrix inside the adsorption box, the activated carbon mesh boxes are mounted on a three-dimensional matrix frame, and the three-dimensional matrix frame is fixed to the adsorption box body.

[0012] Preferably, the three-dimensional matrix frame is located on the side close to the cooling spray tower and has a baffle groove in front of each activated carbon mesh box, and the maintenance window is located on the front side of the adsorption box body.

[0013] Preferably, the chimney is a grid-frame chimney.

[0014] Compared with the prior art, the significant advantages of this utility model are:

[0015] 1. This utility model provides an industrial furnace flue gas emission system that performs cooling, dust removal, demisting, desulfurization, and phosphorus removal operations on the flue gas to produce qualified flue gas that meets environmental protection standards.

[0016] 2. Emergency maintenance can be carried out without shutting down the machine to replace the corresponding failed activated carbon mesh box, thus realizing online maintenance.

[0017] 3. This solution is economical and applicable to the exhaust systems of ordinary industrial furnaces, especially the exhaust systems of roasting furnaces.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 is a front view of the overall structure of this utility model.

[0020] Figure 2 is a top view of Figure 1.

[0021] Figure 3 is a schematic diagram of the tower structure in Figure 1. Detailed Implementation Examples

[0022] As shown in Figures 1 to 3, an industrial furnace flue gas emission system includes an industrial furnace 1. The industrial furnace 1 has a flue gas emission interface connected to a first pipe 2. The first pipe 2 has an air inlet 21 connected to a cooling air fan 7. The first pipe 2 is connected to a cooling spray tower 3. The cooling spray tower 3 includes a tower body 30 and a water-storage spray cooling device 36. The water-storage spray cooling device 36 is arranged outside the tower body 30. The tower body 30 is equipped with an air inlet. Inside the tower body 30, there is a first water-leaking layer 31. The air inlet is connected to a first pipe 2 and located below the first water-leaking layer 31. Above the first water-leaking layer 31, there is a first sprayer 33. Above the first sprayer 33, there is a second water-leaking layer 32. Above the second water-leaking layer 32, there is a second sprayer 34. Above the second sprayer 34, there is a demisting layer 35. Above the demisting layer 35, there is an exhaust port for the cooling spray tower 3. The first water-leaking layer 31... Both the second water-leaking layer 32 and the demisting layer 35 are hollow spherical packing layers. The first sprayer 33 and the second sprayer 34 are both connected to the water-storage supply spray cooling equipment 36, which is connected to the bottom of the tower body 30. The exhaust port of the cooling spray tower 3 is connected to the activated carbon adsorption box 4. The activated carbon adsorption box 4 includes an adsorption box body. The left side of the adsorption box body is connected to the exhaust port of the cooling spray tower 3, and the right side of the adsorption box body is connected to the induced draft fan 5. The adsorption box body is equipped with… The adsorption box has an inspection window located on the front side of the adsorption box. Inside the adsorption box, there is a detachable activated carbon mesh box containing activated carbon. The activated carbon mesh boxes are arranged in a three-dimensional matrix within the adsorption box and are detachably mounted on a three-dimensional matrix frame. The three-dimensional matrix frame is fixed to the adsorption box and is located near the cooling spray tower 3. Each activated carbon mesh box has a baffle groove in front of it. The induced draft fan 5 is connected to the grid-like chimney 9.

[0023] This utility model provides an industrial furnace flue gas emission system. A cooling fan 7 cools the emitted flue gas, and after entering the cooling spray tower 3, it is further cooled by water mist spraying. This system also removes dust from the emitted flue gas. After being sprayed twice by the first sprayer 33 and the second sprayer 34, water flows downwards through the first and second drainage layers 31 and 32, carrying away dust through the hollow spherical packing. The water supply to the spray cooling equipment 36 can be used as circulating water after absorbing water at the bottom of the tower 30 and filtering it. The dust-removed flue gas then passes through the demister layer 35 to remove mist, and then enters the activated carbon adsorption box 4. The activated carbon mesh boxes arranged in a three-dimensional matrix adsorbent layer adsorb the flue gas. The flue gas undergoes desulfurization and dephosphorization operations. An inspection window is installed on the activated carbon adsorption box 4. A baffle groove is installed on the three-dimensional matrix frame near the cooling spray tower 3, in front of each activated carbon mesh box. The inspection window can be opened as needed, and a baffle can be inserted into the baffle groove in front of the activated carbon mesh box that needs to be replaced, thereby replacing the activated carbon mesh box at that position. This allows for emergency maintenance operations to replace the corresponding failed activated carbon mesh box without shutting down the machine. The flue gas after passing through the activated carbon adsorption box 4 already meets environmental protection requirements. Then, the exhaust fan 5 increases the exhaust air force and pushes it towards the grid chimney 9, from which qualified flue gas is discharged into the air. Thus, the entire operation process of the industrial furnace flue gas emission system is completed.

[0024] In addition to the embodiments described above, other undescribed implementation methods should also be within the protection scope of this utility model. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims. Although this document uses specific terminology, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model, and interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An industrial furnace flue gas emission system, characterized in that, The system includes an industrial furnace with a flue gas emission port connected to a first pipe. The first pipe is connected to a cooling spray tower, and the exhaust port of the cooling spray tower is connected to an activated carbon adsorption box. The activated carbon adsorption box is connected to a chimney, and the activated carbon adsorption box is connected to an induced draft fan. The induced draft fan is connected to the chimney. An air inlet is provided on the first pipe and is connected to a cooling air fan. The cooling spray tower includes a tower body and a water-supplied spray cooling device. The water-supplied spray cooling device is located outside the tower body. The tower body has an air inlet. The tower body has a first water-permeable layer inside. The air inlet is connected to the first pipe and located below the first water-permeable layer. A first sprayer is provided above the first water-permeable layer. A second water-permeable layer is provided above the first sprayer. A second sprayer is provided above the second water-permeable layer. A demisting layer is provided above the second sprayer. The demisting layer is connected to the exhaust port of the cooling spray tower. Both the first and second sprayers are connected to the water-supplied spray cooling device.

2. The industrial furnace flue gas emission system according to claim 1, characterized in that, The first leakage layer, the second leakage layer, and the demisting layer are all hollow sphere packing layers.

3. The industrial furnace flue gas emission system according to claim 1, characterized in that, The water storage supply spray cooling equipment is connected to the bottom of the tower.

4. The industrial furnace flue gas emission system according to claim 1, characterized in that, The activated carbon adsorption box includes an adsorption box body. The left side of the adsorption box body is connected to the exhaust port of the cooling spray tower, and the right side of the adsorption box body is connected to the chimney. The adsorption box body is provided with an inspection window. The adsorption box body is provided with a detachable activated carbon mesh box, and the activated carbon mesh box contains activated carbon.

5. The industrial furnace flue gas emission system according to claim 4, characterized in that, The activated carbon mesh boxes are arranged in a three-dimensional matrix inside the adsorption box. The activated carbon mesh boxes are installed on a three-dimensional matrix frame, and the three-dimensional matrix frame is fixed to the adsorption box body.

6. The industrial furnace flue gas emission system according to claim 5, characterized in that, The three-dimensional matrix frame is located on the side close to the cooling spray tower and has a baffle groove in front of each activated carbon mesh box. The maintenance window is located on the front side of the adsorption box.

7. The industrial furnace flue gas emission system according to claim 1, characterized in that, The chimney is a grid-frame chimney.

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