Flue gas purification device for heating furnace

Abstract

The utility model relates to the technical field of heating furnace production, in particular to a heating furnace flue gas purification device which comprises a purification air pipe and an air inlet box fixedly installed at one end of the purification air pipe, a liquid guide hopper is fixedly installed at the bottom end of the air inlet box, a liquid discharge pipe is fixedly installed at the bottom end of the liquid guide hopper, and the bottom end of the liquid discharge pipe is connected with a liquid storage box. And the bottom end of the liquid discharging pipe extends into the liquid storage box and is fixedly connected with the top of the liquid storage box, an exhaust box is fixedly installed at the other end of the purification air pipe, and a spraying pipe is fixedly installed at the top of the purification air pipe. According to the flue gas treatment device, the multiple purification air pipes are arranged, toxic substances with different components in flue gas can be neutralized in a layered mode, meanwhile, the phenomenon that treatment solutions are mixed is avoided, the treatment solutions are subjected to impurity filtering treatment after passing through the liquid guide hopper and the liquid discharging pipe, the different treatment solutions can be collected and reused respectively, and waste of resources is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnace production, in particular to a fume purification device for a heating furnace. Background Art

[0002] A heating furnace is a device used in the steelmaking industry to heat materials or workpieces to rolling or forging temperature before pouring them into suitable molds.

[0003] During the operation of the heating furnace, a certain amount of flue gas will be generated. These flue gases need to undergo a series of purification operations and can only be discharged into the atmosphere after meeting the emission standards. At present, the purification operations of this type of flue gas are mostly carried out by spraying. By spraying different neutralizers, the toxic substances in the flue gas are purified. However, the current purification method has certain drawbacks. For example, although the spraying process is divided into multiple spraying stages, the liquid after spraying is mostly directly gathered in one place, which makes the liquid after spraying unable to be reused, causing a waste of resources to a certain extent.

[0004] Therefore, it is necessary to provide a new heating furnace flue gas purification device to solve the above technical problems. Summary of the invention

[0005] The utility model aims to provide a heating furnace fume purification device which is convenient to operate, has good spraying effect and reduces resource waste.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a heating furnace flue gas purification device, including a purification air duct and an air intake box fixedly installed at one end of the purification air duct, a liquid guide bucket is fixedly installed at the bottom end of the air intake box, a liquid discharge pipe is fixedly installed at the bottom end of the liquid guide bucket, the bottom end of the liquid discharge pipe is connected to a liquid storage tank, the bottom end of the liquid discharge pipe extends into the liquid storage tank and is fixedly connected to the top of the liquid storage tank, an exhaust box is fixedly installed at the other end of the purification air duct, and a spray pipe is fixedly installed on the top of the purification air duct.

[0007] Furthermore, a plurality of branch pipes are fixedly installed on the top of the purification air duct, the top end of each branch pipe is connected to the spray pipe, and the bottom end of each branch pipe extends into the purification air duct.

[0008] Furthermore, a hydraulic pump is fixedly installed on the outer wall of one side of the air intake box, a liquid outlet pipe is fixedly installed on the outlet end of the hydraulic pump, the liquid outlet pipe is fixedly connected to the bottom end of the spray pipe, and a liquid extraction pipe is fixedly installed on the inlet end of the hydraulic pump, and the end of the liquid extraction pipe extends into the liquid storage tank.

[0009] Furthermore, a plurality of filter rings are fixedly installed in the liquid guiding hopper, and a sedimentation tank is provided on each filter ring.

[0010] Furthermore, two installation frames are slidably installed in the drain pipe, one side of each installation frame extends to the outside of the drain pipe, and an activated carbon adsorption layer and a honeycomb adsorption layer are respectively provided on the two installation frames. Two liquid guide rings are fixedly installed on the inner wall of the drain pipe, and the two liquid guide rings are respectively located above the activated carbon adsorption layer and the honeycomb adsorption layer.

[0011] Furthermore, the top of the air inlet box is connected to an air inlet pipe, and the top of the air exhaust box is connected to an air outlet pipe.

[0012] Furthermore, a plurality of support columns are fixedly installed on the top of the exhaust box, and the support columns are used to be fixedly connected to the bottom of the liquid storage tank of another group of purification air ducts. A connecting pipe is fixedly installed on the top of the air outlet pipe, and the other end of the connecting pipe is used to communicate with the air inlet pipe of another group of purification air ducts.

[0013] The utility model has the following beneficial effects: the heating furnace flue gas purification device of the utility model can neutralize toxic substances of different components in the flue gas in layers by arranging multiple purification air ducts. At the same time, the treatment liquids will not be mixed with each other, and the treatment liquids will be filtered out after passing through the liquid guide hopper and the liquid discharge pipe. Different treatment liquids can be collected and reused separately, reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a preferred embodiment of the heating furnace flue gas purification device of the utility model;

[0015] Figure 2 for Figure 1 The schematic diagram of the side cross-sectional plan structure of the purification air duct shown;

[0016] Figure 3 for Figure 1 A schematic diagram of the side cross-sectional plan structure of the air intake box shown;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the liquid guide bucket from a top view shown;

[0018] Figure 5 for Figure 4 The side view structural diagram of the filter heterocycle shown;

[0019] Figure 6 for Figure 5 A magnified view of the local structure at center A;

[0020] Figure 7 for Figure 1 A schematic diagram of a side cross-sectional structure of a liquid discharge pipe shown;

[0021] Figure 8 for Figure 7A magnified view of the local structure at B in the middle;

[0022] Fig. 9 This is a schematic diagram of the connection status of two purification air ducts.

[0023] In the figure: 1. Purification air duct; 2. Air inlet box; 3. Exhaust box; 4. Air inlet pipe; 5. Air outlet pipe; 6. Spray pipe; 7. Branch pipe; 8. Spray head; 9. Liquid guide bucket; 10. Liquid discharge pipe; 11. Liquid storage tank; 12. Hydraulic pump; 13. Liquid outlet pipe; 14. Liquid extraction pipe; 15. Filter ring; 16. Sedimentation tank; 17. Installation frame; 18. Activated carbon adsorption layer; 19. Honeycomb adsorption layer; 20. Installation port; 21. Slide groove; 22. Sliding block; 23. Liquid guide ring; 24. Support column; 25. Connecting pipe. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the protection scope of the present invention is not limited to these embodiments. Any changes or equivalent substitutions that do not deviate from the concept of the present invention are included in the protection scope of the present invention.

[0025] like Figure 1 As shown, the flue gas purification device of the heating furnace includes a purification air duct 1 and an air inlet box 2 fixedly installed at one end of the purification air duct 1, the purification air duct 1 is inclined, the air inlet box 2 is located at the end of the purification air duct 1 with a lower horizontal height, and an exhaust box 3 is fixedly installed at the end of the purification air duct 1 with a higher horizontal height, and the sides of the air inlet box 2 and the exhaust box 3 close to each other are set as openings, the two ends of the purification air duct 1 are respectively connected with the air inlet box 2 and the exhaust box 3, and the bottom end of the air inlet box 2 is set as an opening, and a liquid guide bucket 9 is fixedly installed at the bottom end of the air inlet box 2, and a drain pipe 10 is fixedly installed at the bottom end of the liquid guide bucket 9, which is a conical guide bucket positioned as a rectangle, and the top of the liquid guide bucket 9 is connected to the bottom of the air inlet box 2, and the bottom end of the drain pipe 10 is connected to a liquid storage tank 11, and the bottom end of the drain pipe 10 extends into the liquid storage tank 11 and is fixedly connected to the top of the liquid storage tank 11.

[0026] A spray pipe 6 is fixedly installed on the top of the purification air duct 1. Figure 2 Two support plates are fixedly installed on the top of the purification air duct 1, and the spray pipe 6 is fixedly installed on the two support plates. The spray pipe 6 is parallel to the purification air duct 1. A plurality of branch pipes 7 are fixedly installed on the top of the purification air duct 1. The top ends of the plurality of branch pipes 7 are connected with the spray pipe 6, and the bottom ends of the plurality of branch pipes 7 extend into the purification air duct 1. Spray heads 8 are fixedly installed on the bottom ends of the plurality of branch pipes 7. The plurality of branch pipes 7 are distributed in a linear array, and the spray head 8 is an atomizing nozzle commonly used in the prior art.

[0027] like Figure 3As shown, a hydraulic pump 12 is fixedly installed on the outer wall of one side of the air intake box 2, a liquid outlet pipe 13 is fixedly installed at the outlet end of the hydraulic pump 12, one end of the liquid outlet pipe 13 is fixedly connected to the bottom end of the spray pipe 6, a liquid extraction pipe 14 is fixedly installed at the inlet end of the hydraulic pump 12, one end of the liquid extraction pipe 14 extends into the liquid storage tank 11, a filter joint is fixedly installed on one end of the liquid extraction pipe 14 located at the liquid storage tank 11, a water pipe is fixedly installed at the bottom of the liquid storage tank 11, and the water pipe is connected to the liquid storage tank 11.

[0028] A plurality of filter rings 15 are fixedly installed in the liquid guide hopper 9, and each filter ring 15 is provided with a sedimentation tank 16. Figure 4-Figure 6 As shown, the plurality of impurity filter rings 15 are distributed in a terraced array along the inner wall of the liquid guiding hopper 9 , and the tops of the plurality of impurity filter rings 15 are all inclined and fit the inner wall of the liquid guiding hopper 9 .

[0029] Two mounting frames 17 are slidably mounted in the drain pipe 10. One side of the two mounting frames 17 extends to the outside of the drain pipe 10. Figure 7 As shown, baffles are fixedly installed on the outer walls of one side of the two mounting frames 17, and handles are fixedly installed on the baffles. In actual use, after the mounting frame 17 is inserted into the drain pipe 10, the handle is fixed to the outer wall of the drain pipe 10 by bolts. An activated carbon adsorption layer 18 and a honeycomb adsorption layer 19 are respectively provided on the two mounting frames 17. Two liquid guide rings 23 are fixedly installed on the inner wall of the drain pipe 10. The two liquid guide rings 23 are annular inclined plates, and the two liquid guide rings 23 are respectively located above the two mounting frames 17.

[0030] like Figure 8 As shown, two installation openings 20 are opened on one side of the discharge pipe 10, and two installation frames 17 are respectively slidably installed in the two installation openings 20. Slide rail grooves 21 are opened on the inner walls on both sides of the two installation openings 20, and sliders 22 are fixedly installed on the outer walls on both sides of the two installation frames 17. The sliders 22 are slidably connected to the corresponding slide rail grooves 21 respectively.

[0031] The top of the air inlet box 2 is connected to an air inlet pipe 4, and the top of the exhaust box 3 is connected to an air outlet pipe 5. Figure 1 As shown, the top of the air inlet pipe 4 and the air outlet pipe 5 are fixedly installed with an air duct, the top of the exhaust box 3 is fixedly installed with four support columns 24, and the four support columns 24 are distributed in a rectangular array. The top of the air outlet pipe 5 is fixedly installed with a connecting pipe 25. In actual use, multiple devices can be set for connection. By fixing the liquid storage tank 11 of the second group of purified air ducts on the top of the four support columns 24 of the first group of purified air ducts, a connection pipe 25 is formed. Fig. 9 The step state shown in the figure, and the bottom end of the connecting pipe 25 in use is connected to the air outlet pipe 5 of the first group of purified air ducts, and the top end is connected to the air inlet pipe 4 of the second group of purified air ducts.

[0032] The working principle of the heating furnace flue gas purification device provided by the utility model is as follows:

[0033] When performing the flue gas purification operation of the heating furnace, the staff can first install multiple purification air ducts 1 according to the main components in the flue gas. Fig. 9 The states shown are connected together, and then the smoke is introduced into the purification air duct 1 through the air inlet pipe on the top of the lowest air inlet box 2, and then the hydraulic pump 12 is started. The hydraulic pump 12 is started to extract the liquid in the liquid storage tank 11, and after passing through the liquid extraction pipe 14, the liquid outlet pipe 13 and the spray pipe 6, it is sprayed out through multiple spray heads 8. At this time, the smoke will gradually float along the purification air duct 1 toward the exhaust box 3. After passing through the purification air duct 1, the sprayed liquid will intercept the impurities in the smoke and neutralize the toxic substances in the smoke.

[0034] The sprayed liquid will flow along the bottom inner wall of the purified air duct 1, and after flowing into the air intake box 2, it will flow along the inner wall of the liquid guide bucket 9. The liquid in the liquid guide bucket 9 will flow through multiple filter rings 15, and will continue to flow after filling the sedimentation tank 16 in the filter rings 15. After the liquid has been standing in the sedimentation tank 16 for a short time, some heavier impurities will be deposited at the bottom of the sedimentation tank 16. Therefore, after flowing through multiple filter rings 15, some larger impurities will be deposited in the sedimentation tank 16, so as to preliminarily filter the impurities in the liquid.

[0035] After passing through a plurality of filter rings 15 , the liquid will flow into the drain pipe 10 . Guided by two liquid guide rings 23 , the liquid will remain on the activated carbon adsorption layer 18 and the honeycomb adsorption layer 19 , thereby further absorbing fine impurities in the liquid.

[0036] Finally, the liquid will flow into the liquid storage tank 11 again, and under the extraction of the hydraulic pump 12, the next spraying will be completed again.

[0037] After the flue gas floats upward into the exhaust box 3, it will enter the air intake box 2 of the upper layer through the connecting pipe 25 and be sprayed in the purification air duct 1 of the upper layer. Similarly, in the purification air duct 1 on the upper side, the sprayed liquid will also flow into the liquid storage tank 11 of the upper layer.

[0038] Different liquid storage tanks 11 can contain different types of liquids as needed to process substances with different components in the flue gas. By setting up multiple purification air ducts 1, substances with different components can be processed in layers. At the same time, the treated liquids will not be mixed with each other, and the treated liquids will be filtered out after passing through the liquid guide hopper 9 and the drain pipe 10. In this way, different treated liquids can be reused, reducing the waste of resources.

[0039] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0040] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A heating furnace fume purification device, comprising a purification air duct and an air inlet box fixedly installed at one end of the purification air duct, characterized in that: A liquid guide bucket is fixedly installed at the bottom end of the air intake box, a liquid drain pipe is fixedly installed at the bottom end of the liquid guide bucket, the bottom end of the liquid drain pipe is connected to the liquid storage tank, the bottom end of the liquid drain pipe extends into the liquid storage tank and is fixedly connected to the top of the liquid storage tank, an exhaust box is fixedly installed at the other end of the purification air duct, and a spray pipe is fixedly installed on the top of the purification air duct.

2. The heating furnace flue gas purification device according to claim 1, characterized in that: A plurality of branch pipes are fixedly installed on the top of the purification air duct, the top end of each branch pipe is connected to the spray pipe, and the bottom end of each branch pipe extends into the purification air duct.

3. The heating furnace flue gas purification device according to claim 2, characterized in that: A hydraulic pump is fixedly installed on one side outer wall of the air intake box, a liquid outlet pipe is fixedly installed on the outlet end of the hydraulic pump, the liquid outlet pipe is fixedly connected to the bottom end of the spray pipe, and a liquid extraction pipe is fixedly installed on the inlet end of the hydraulic pump, and the end of the liquid extraction pipe extends into the liquid storage tank.

4. The heating furnace flue gas purification device according to claim 1, characterized in that: A plurality of filter rings are fixedly installed in the liquid guiding hopper, and a sedimentation tank is provided on each filter ring.

5. The heating furnace flue gas purification device according to claim 4, characterized in that: Two installation frames are slidably installed in the drainage pipe, one side of each installation frame extends to the outside of the drainage pipe, and an activated carbon adsorption layer and a honeycomb adsorption layer are respectively provided on the two installation frames. Two liquid guide rings are fixedly installed on the inner wall of the drainage pipe, and the two liquid guide rings are respectively located above the activated carbon adsorption layer and the honeycomb adsorption layer.

6. The heating furnace flue gas purification device according to claim 1, characterized in that: The top of the air inlet box is connected to an air inlet pipe, and the top of the air exhaust box is connected to an air outlet pipe.

7. The heating furnace flue gas purification device according to claim 6, characterized in that: A plurality of support columns are fixedly installed on the top of the exhaust box, and the support columns are used to be fixedly connected to the bottom of the liquid storage tank of another group of purified air ducts. A connecting pipe is fixedly installed on the top of the air outlet pipe, and the other end of the connecting pipe is used to communicate with the air inlet pipe of another group of purified air ducts.

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