Exhaust treatment device for workshop production

Abstract

The utility model relates to an exhaust treatment device for workshop production, which comprises a support frame, an air extractor arranged on one side of the top end of the support frame, an air inlet cover arranged at the air inlet end of the air extractor, and an air outlet end connected with the air inlet end of a dust removal box through a pipeline, a filter device arranged in the dust removal box, a first limit frame arranged at the bottom end of the dust removal box, and a reaction box arranged on one side of the dust removal box, a heating device is arranged in the reaction box; a storage bin is arranged at the middle position in the reaction box; a plurality of spray heads are arranged on the side wall of the storage bin; a bin cover is arranged on one side of the storage bin; the output end of the motor penetrates through one side of the reaction box to be connected with the rotating shaft, the feeding device is arranged at the top end of the reaction box, a dry-method treatment mode is adopted, the problem of wastewater treatment is solved, harmful gas generated in the electroslag furnace can be efficiently treated, and harm to human bodies is reduced.

Description

Technical Field

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

[0002] With the continuous development of society, industrial production is also gradually expanding. The processing workshop of the electric slag furnace will produce a lot of gases when carrying out related processing. These gases need to be discharged. At present, there are two main treatment methods for the exhaust gas of the electric slag furnace: dry method and wet method. The traditional wet treatment device has the problem of wastewater treatment. We choose to adopt the dry treatment method. The traditional dry treatment method requires the addition of lime powder for defluorination, and the lime powder is easy to get damp and agglomerate, which will cause the equipment to be blocked and the purification efficiency of the fluorine-containing gas will be reduced. There are not only harmful gases in the exhaust gas discharged from the electric slag furnace, but generally there are also some small mist particles. If these small mist particles are not removed, it may affect the reaction of subsequent processes and reduce the efficiency of the equipment in removing harmful gases. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides an exhaust gas treatment device for workshop production.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas treatment device for workshop production, comprising a support frame, an exhaust fan is provided on one side of the top of the support frame, an air intake hood is provided at the input end of the exhaust fan, and an output end of the exhaust fan is connected with the air intake end of a dust removal box through a pipeline, a filtering device is provided in the dust removal box, a first limiting frame is provided at the bottom end of the dust removal box, a reaction box is provided on one side of the dust removal box, a second limiting frame is provided at the bottom end of the reaction box, a heating device is provided in the reaction box, a storage bin is provided in the reaction box, nozzles are provided around the storage bin, a rotating shaft is provided on one side of the storage bin, a motor is provided on one side of the rotating shaft, the output end of the motor passes through one side of the reaction box and is connected with the rotating shaft, a bin cover is provided on the other side of the storage bin, the bin cover and the storage bin are detachably connected by bolts, a box cover is provided on one side of the reaction box, an air outlet end of the dust removal box is connected with the box cover through a pipeline, and a feeding device is provided on the top of the reaction box.

[0005] Preferably, the filtering device includes a filter plate and a dust collecting box, a slide groove is provided at the top of the dust collecting box, the filter plate is connected to the dust collecting box via the slide groove, the slide groove is adapted to the filter plate, and the dust collecting box is slidably installed in the first limiting frame. The filtering device can filter the dust particles contained in the harmful gas and adhere them to the filter plate.

[0006] It is further preferred that a vibrator is symmetrically provided on the top of the dust removal box, and the vibrator is detachably connected to the dust removal box by bolts. The vibrator can vibrate the dust particles adhered to the filter plate to make them fall into the dust collection box.

[0007] It is further preferred that the feeding device includes a feed bin, a feed box, a baffle plate and a blower, the feed box is installed at the top of the reaction box, the feed bin is installed at the top of the feed box, the baffle plate is arranged in the feed box, the blower is installed at the top of the reaction box, and the blower output end is connected to one side of the feed box, and the other side of the feed box extends into the storage bin through a pipeline through the box cover and the bin cover. Lime powder is placed in the feed box, and the reaction of lime powder and fluorine-containing harmful gas will generate calcium fluoride crystals and some harmless substances. The blower can blow the lime powder into the storage bin, and then spray it out through the nozzle.

[0008] It is further preferred that the heating device includes a resistance wire and an insulation bin, the insulation bin is arranged in the reaction box, a cavity is provided between the insulation bin and the reaction box, the resistance wire is spirally arranged in the cavity, the lime powder is susceptible to moisture and agglomeration below 50°C, the heating device can heat the temperature in the bin to above 50°C, and can effectively prevent the lime powder from agglomerating.

[0009] It is further preferred that a discharge port is provided on one side of the insulation bin and the reaction box, a waste box is provided below the discharge port, and the waste box is installed in the second limiting frame. The discharge port and the waste box can be used together to collect the waste generated after the reaction in the insulation bin, thereby preventing excessive waste from accumulating in the insulation bin and affecting the subsequent reaction process.

[0010] In a further preferred embodiment, a mounting frame is provided on one side of the reaction box, a deodorization box is provided in the mounting frame, one end of the reaction box is connected to the top of the mounting frame through a pipe, activated carbon is placed in the deodorization box, and an exhaust hole is provided at the bottom of the deodorization box. The activated carbon placed in the deodorization box can remove odor from the gas, and the exhaust hole can discharge the purified gas to prevent the reaction box and the insulation bin from exploding due to excessive gas in the reaction box.

[0011] Compared with the prior art, the present invention provides a method having the following beneficial effects:

[0012] In the utility model, the heating device can raise the temperature in the reaction box to above 50°C, and the establishment of the heat preservation bin can prevent the temperature in the heat preservation bin from cooling down quickly, and can keep the temperature in the heat preservation bin above 50°C for a longer time, effectively improving the purification efficiency. In addition, lime powder is placed in the feeding device, and the reaction of lime powder and fluorine-containing harmful gas will generate calcium fluoride crystals and some other harmless substances. The feeding device transports the lime powder to the storage bin, and then sprays it into the reaction box through the nozzle provided on the side wall of the storage bin. The motor drives the storage bin to rotate, and the lime powder can be sprayed to every part of the reaction box, so that the lime powder and the fluorine-containing gas can react fully.

[0013] On the basis of the above, the filtering device can effectively adhere to some dust particles in the gas to achieve the purpose of filtering the gas. The vibrator symmetrically arranged on the top of the dust removal bin can vibrate the dust particles adhering to the filter plate and then drop them into the dust collecting box, which can further improve the purification effect of harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a top view of the structure of the utility model without the support frame;

[0016] Figure 3 It is a cross-sectional structural diagram of the reaction box part and the feeding device in the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the feed box in the utility model;

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the dust removal box in the utility model.

[0019] In the figure: 1. support frame; 2. vacuum pump; 3. air intake hood; 4. pipeline; 5. dust removal box; 6. first limit frame; 7. reaction box; 8. second limit frame; 9. storage bin; 10. nozzle; 11. rotating shaft; 12. motor; 13. bin cover; 14. box cover; 15. filter plate; 16. dust collection box; 17. slide; 18. vibrator; 19. feed bin; 20. feeding box; 21. baffle plate; 22. blower; 23. resistance wire; 24. insulation bin; 25. cavity; 26. discharge port; 27. waste bin; 28. mounting frame; 29. ​​deodorization bin; 30. exhaust hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] See also Figures 1 to 5 , in the embodiment of the utility model:

[0023] An exhaust gas treatment device for workshop production includes a support frame 1, an exhaust fan 2 is provided on one side of the top of the support frame 1, an air intake hood 3 is provided at the air intake end of the exhaust fan 2, an output end of the exhaust fan 2 is connected to the air intake end of a dust removal box 5 through a pipeline 4, a filtering device is provided in the dust removal box 5, a first limiting frame 6 is provided at the bottom end of the dust removal box 5, a reaction box 7 is provided on one side of the dust removal box 5, a second limiting frame 8 is provided at the bottom end of the reaction box 7, a heating device is provided in the reaction box 7, and a heating device is provided in the reaction box 7. A storage bin 9 is provided, and nozzles 10 are provided around the storage bin 9. A rotating shaft 11 is provided on one side of the storage bin 9, and a motor 12 is provided on one side of the rotating shaft 11. The output end of the motor 12 passes through one side of the reaction box 7 and is connected to the rotating shaft 11. A bin cover 13 is provided on the other side of the storage bin 9, and the bin cover 13 is detachably connected to the storage bin 9 by bolts. A box cover 14 is provided on one side of the reaction box 7, and the air outlet end of the dust removal box 5 is connected to the box cover 14 through a pipe 4. A feeding device is provided on the top of the reaction box 7

[0024] In an embodiment of the utility model, the filtering device includes a filter plate 15 and a dust collecting box 16. A slide groove 17 is provided at the top of the dust collecting box 5. The filter plate 15 is connected to the dust collecting box 5 through the slide groove 17. The slide groove 17 is adapted to the filter plate 15. The dust collecting box 16 is installed in the first limiting frame 6. The harmful gas generated in the electric slag furnace enters the dust collecting box 5 and will be filtered through the multiple layers of filter plates 15 to reach the other end of the dust collecting box 5.

[0025] In the embodiment of the utility model, a vibrator 18 is symmetrically provided at the top of the dust removal box 5. The vibrator 18 is detachably connected to the dust removal box 5 by bolts. The vibrator 18 will vibrate the dust particles adhering to the filter plate 15 and make them fall into the dust collection box 16 provided below.

[0026] In an embodiment of the utility model, the feeding device includes a feed bin 19, a feed box 20, a baffle plate 21 and a blower 22. The feed box 20 is installed at the top of the reaction box 7, the feed bin 19 is installed at the top of the feed box 20, the baffle plate 21 is arranged in the feed box 20, the blower 22 is installed at the top of the reaction box 7, and the output end of the blower 22 is connected to one side of the feed box 20, and the other side of the feed box 20 extends into the storage bin 9 through the pipe 4 through the box cover 14 and the bin cover 13. Lime powder is placed in the feed box 20, and the blower 22 will blow the lime powder placed in the feed box 20 and transport it to the storage bin 9 through the pipe 4.

[0027] In an embodiment of the utility model, the heating device includes a resistance wire 23 and a heat preservation chamber 24. The heat preservation chamber 24 is arranged in the reaction box 7. A cavity 25 is provided between the heat preservation chamber 24 and the reaction box 7. The resistance wire 23 is spirally arranged in the cavity 25. The heating of the resistance wire 23 will raise the temperature to above 50°C. The heat preservation chamber 24 can effectively prevent temperature loss.

[0028] In the embodiment of the utility model, a discharge port 26 is provided on one side of the insulation bin 24 and the reaction box 7, a waste box 27 is provided below the discharge port 26, and the waste box 27 is installed in the second limiting frame 8. The calcium fluoride crystal particles generated by the reaction will fall into the waste box 27 through the discharge port 26.

[0029] In the embodiment of the utility model, a mounting frame 28 is provided on one side of the reaction box, a deodorization box 29 is provided in the mounting frame, one end of the reaction box 7 is connected to the top of the mounting frame 28 through a pipe 4, activated carbon is placed in the deodorization box 29, and an exhaust hole 30 is provided at the bottom of the deodorization box 29. After the lime powder and the fluorine-containing harmful gas react, calcium fluoride crystals and some gases will be generated. The generated gas can be discharged through the deodorization box 29, and the activated carbon placed in the deodorization box 29 can also absorb the odor in the gas.

[0030] Embodiment 2:

[0031] See also Figures 1 to 5 , in the embodiment of the utility model:

[0032] During installation, firstly wind the resistance wire 23 around the outside of the heat preservation bin 24, then install the heat preservation bin 24 inside the reaction box 7, then install the nozzle 10 on the side wall of the storage bin 9, then pass the output end of the motor 12 through the reaction box 7 and one side of the heat preservation bin 24 to connect with the rotating shaft 11 provided on one side of the storage bin 9, and detachably install the motor 12 on the outside of the reaction box 7 by bolts, then install the bin cover 13 on the other side of the storage bin 9, and then install the box cover 14 on one side of the reaction box 7, then install the feeding box 20 on the top of the reaction box 7, and then install the blower 22 on one side of the feeding box 20, the lower end face of the blower 22 is connected to the upper end face of the reaction box 7, the conveying end of the feeding box 20 is connected to one side of the pipeline 4, and the other side of the pipeline 4 passes through the box cover 14 and the bin cover 13 and extends into the storage bin 9, then the reaction box 7 is installed on the upper end of the support frame 1, and then a second limit is provided below the discharge port 26. A waste box 27 is installed in the frame 8, and then a filter plate 15 is installed in the slide groove 17 provided above the dust box 5, and then the dust box 5 is installed on one side of the reaction box 7, and the dust box 5 is installed on the top of the support frame 1, and then two vibrators 18 are symmetrically installed on the top of the dust box 5, and then a dust collecting box 16 is installed in the first limiting frame 6 provided below the dust box 5, and then the air outlet end of the dust box 5 is connected with the box cover 14 through a pipe 4, and then the air inlet end of the dust box 5 is connected with the air outlet end of the exhaust fan 2 through a pipe 4, the exhaust fan 2 is installed on the top of the support frame 1, and then an air intake hood 3 is installed at the air inlet end of the exhaust fan 2, and then a mounting frame 28 is installed on one side of the reaction box 7, and then a deodorizing box 29 is installed in the mounting frame 28, and finally one end of the pipe 4 is connected to the reaction box 4 and extends into the insulation bin 24, and the other end of the pipe 4 is connected to the top of the mounting frame 28 and extends into the deodorizing box 29.

[0033] Embodiment 3:

[0034] See also Figures 1 to 5 , in the embodiment of the utility model:

[0035] When in use, the exhaust fan 2 extracts the harmful gas generated in the electroslag furnace through the air inlet hood 3, and transports it to the dust removal box 5 through the pipeline 4. The harmful gas transported to the dust removal box 5 will pass through the multi-layer filter plate 15 to filter out the dust particles carried by it. Most of the filtered dust particles will directly adhere to the filter plate 15. The top of the dust removal box 5 is provided with a vibrator 18, which will drive the dust removal box 5 and the filter plate 15 to vibrate together, and vibrate the adhered dust particles down, so that they fall into the dust collection box 16 provided below. When the dust collection box When the dust box 16 is full, the dust box 16 can be directly taken out from the first limit frame 6, and then replaced with an empty dust box 16. The filtered harmful gas will be transported to the insulation bin 24 through the pipeline 4. The staff can put the lime powder into the feed box 20 through the feed bin 19. The blower 22 will directly blow the lime powder to allow the lime powder to enter the storage bin 9 through the pipeline 4. The motor 12 provided on the outside of the reaction box 7 drives the storage bin 9 to rotate through the rotating shaft 11, so that the lime powder entering the storage bin 9 passes through the nozzle 10 is sprayed to every space in the heat preservation bin 24, and the resistance wire 23 arranged in the cavity 25 generates heat to raise the temperature in the heat preservation bin 24 to above 50°C. The heat preservation bin 24 further prevents temperature loss and can effectively prevent the agglomeration of lime powder, so that the fluorine-containing harmful gas entering the heat preservation bin 24 fully reacts with the lime powder. The calcium fluoride crystals and some harmless substances generated after the reaction will fall through the discharge port 26 into the waste box 27 arranged in the second limit frame 8. The harmless gas after the reaction is completed will pass through the waste box 27. The waste gas is discharged from the pipe 4 connected to one side of the box 27, and then enters the deodorizing box 29. After being purified by the activated carbon in the deodorizing box 29, it is discharged from the exhaust hole 30 set at the bottom of the deodorizing box 29. When the activated carbon needs to be replaced, the deodorizing box 29 is pulled out from the mounting frame 28, and then the activated carbon in the deodorizing box 29 is taken out and replaced with new activated carbon, and then the deodorizing box 29 is put back into the mounting frame 28. When the waste box 27 is full, the waste box 27 can be directly taken out from the second limiting frame 8 and replaced with an empty waste box 27.

[0036] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas treatment device for workshop production, comprising a support frame (1), characterized in that: An air extractor (2) is provided on one side of the top of the support frame (1); an air intake hood (3) is provided on the input end of the air extractor (2); an output end of the air extractor (2) is connected to an air intake end of a dust removal box (5) via a pipeline (4); a filtering device is provided in the dust removal box (5); a first limiting frame (6) is provided at the bottom end of the dust removal box (5); a reaction box (7) is provided on one side of the dust removal box (5); a second limiting frame (8) is provided at the bottom end of the reaction box (7); a heating device is provided in the reaction box (7); a material storage bin (9) is provided in the reaction box (7); the material storage bin (9) ) is provided with nozzles (10) around it, a rotating shaft (11) is provided on one side of the storage bin (9), a motor (12) is provided on the other side of the rotating shaft (11), an output end of the motor (12) passes through one side of the reaction box (7) and is connected to the rotating shaft (11), a bin cover (13) is provided on the other side of the storage bin (9), the bin cover (13) and the storage bin (9) are detachably connected by bolts, a box cover (14) is provided on one side of the reaction box (7), an air outlet end of the dust removal box (5) is connected to the box cover (14) through a pipe (4), and a feeding device is provided at the top of the reaction box (7).

2. The exhaust gas treatment device for workshop production according to claim 1, characterized in that: The filtering device comprises a filter plate (15) and a dust collecting box (16); a slide groove (17) is provided at the top of the dust collecting box (5); the filter plate (15) is connected to the dust collecting box (5) via the slide groove (17); the slide groove (17) is adapted to the filter plate (15); and the dust collecting box (16) is slidably mounted in the first limiting frame (6).

3. The exhaust gas treatment device for workshop production according to claim 2, characterized in that: A vibrator (18) is symmetrically arranged at the top of the dust removal box (5), and the vibrator (18) is detachably connected to the dust removal box (5) via bolts.

4. The exhaust gas treatment device for workshop production according to claim 1, characterized in that: The feeding device comprises a feeding bin (19), a feeding box (20), a baffle plate (21) and a blower (22); the feeding box (20) is installed at the top of a reaction box (7); the feeding bin (19) is installed at the top of the feeding box (20); the baffle plate (21) is arranged in the feeding box (20); the blower (22) is installed at the top of the reaction box (7); and the output end of the blower (22) is connected to one side of the feeding box (20); and the other side of the feeding box (20) extends into the storage bin (9) through a pipe (4) through a box cover (14) and a bin cover (13).

5. The exhaust gas treatment device for workshop production according to claim 4, characterized in that: Lime powder is placed in the feeding box (20).

6. The exhaust gas treatment device for workshop production according to claim 1, characterized in that: The heating device comprises a resistance wire (23) and a heat preservation chamber (24); the heat preservation chamber (24) is arranged in a reaction box (7); a cavity (25) is arranged between the heat preservation chamber (24) and the reaction box (7); and the resistance wire (23) is spirally arranged in the cavity (25).

7. The exhaust gas treatment device for workshop production according to claim 6, characterized in that: The heat preservation bin (24) and the reaction box (7) are both provided with a discharge port (26) on one side, a waste box (27) is provided below the discharge port (26), and the waste box (27) is installed in the second limiting frame (8).

8. The exhaust gas treatment device for workshop production according to claim 7, characterized in that: A mounting frame (28) is provided on one side of the reaction box, and a deodorizing box (29) is provided inside the mounting frame.

9. The exhaust gas treatment device for workshop production according to claim 8, characterized in that: One end of the reaction box (7) is connected to the top of the mounting frame (28) through a pipeline (4); activated carbon is placed in the deodorization box (29); and an exhaust hole (30) is provided at the bottom of the deodorization box (29).

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