Metallurgy waste gas treatment device

Abstract

The utility model discloses a metallurgical waste gas treatment device which comprises a treatment box, a chemical spraying assembly, a filter box and a waste water recovery assembly, a gas inlet pipe and a gas outlet pipe are arranged on the treatment box, a spraying assembly and an exhaust fan are arranged on the gas inlet pipe, and a first filter plate is arranged in the treatment box; the spraying assembly comprises a water storage tank and a spraying unit communicated with the water storage tank, and the spraying unit is arranged in the treatment box; the pesticide spraying assembly comprises a pesticide spraying unit arranged in the treatment box, and a stirring assembly is arranged at the bottom of the treatment box; the filter box is communicated with the treatment box to collect wastewater, and a second filter plate is arranged in the filter box; the wastewater recycling assembly is communicated with the filter tank and the water storage tank respectively. According to the metallurgical waste gas treatment device disclosed by the utility model, waste water is filtered twice and is mixed with a medicament between the two times of filtering, so that the waste water treatment is more thorough, the impurity content in the waste water is lower, and the possibility of polluting clear water in the water storage tank after the waste water flows back can be reduced, thereby improving the waste gas treatment effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical technical field more specifically, relate to a metallurgical waste gas treatment device. BACKGROUND

[0002] Metallurgy refers to the process and technology of extracting metals or metal compounds from minerals and using various processing methods to make metal materials with certain properties. Metallurgical technology mainly includes pyrometallurgy, hydrometallurgy and electro-metallurgy.

[0003] A large amount of waste gas is generated in the metallurgical process, and the waste gas contains a large amount of impurity pollutants. If the workers inhale the pollutants into the body, it will affect the health. In order to make the waste gas meet the emission standard, the pollutants in the waste gas need to be removed, and the metallurgical waste gas treatment device is needed.

[0004] The existing metallurgical waste gas treatment device uses the spraying method to filter and treat the waste gas and water, and then the filtered waste water is backflowed for spraying again to reduce the waste of water resources. However, the waste water filtering is not complete, and the waste water backflowed for spraying again can pollute the clean water and affect the waste gas treatment effect.

[0005] Therefore, how to improve the problem of waste water backflow affecting the waste gas treatment effect in the prior art has become a technical problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENT

[0006] Therefore, the purpose of the utility model is to provide a metallurgical waste gas treatment device to improve the problem of waste water backflow affecting the waste gas treatment effect in the prior art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A metallurgical waste gas treatment device comprises:

[0009] A treatment box is provided with an air inlet pipe and an air outlet pipe, an air extractor is arranged on the air inlet pipe, and a first filter plate is arranged in the treatment box;

[0010] A spraying assembly comprises a water storage tank and a spraying unit in communication with the water storage tank, and the spraying unit is arranged in the treatment box;

[0011] A pesticide spraying assembly comprises a pesticide spraying unit arranged in the treatment box, and a stirring assembly is arranged at the bottom of the treatment box;

[0012] A filter box is in communication with the treatment box to collect waste water, and a second filter plate is arranged in the filter box;

[0013] A wastewater recovery assembly is in communication with the filter tank and the water storage tank, respectively.

[0014] Optionally, in the metallurgical waste gas treatment device, the first filter plate is detachably connected with the treatment tank; and / or,

[0015] the second filter plate is detachably connected with the filter tank.

[0016] Optionally, in the metallurgical waste gas treatment device, the stirring assembly comprises a stirring rod and a stirring motor connected with the stirring rod.

[0017] Optionally, in the metallurgical waste gas treatment device, the filter tank is in communication with the treatment tank through a water outlet pipe, and a first valve is arranged on the water outlet pipe.

[0018] Optionally, in the metallurgical waste gas treatment device, a flow guide block is arranged in the filter tank.

[0019] Optionally, in the metallurgical waste gas treatment device, the pesticide spraying assembly comprises a pesticide storage barrel, and the pesticide spraying unit is in communication with the pesticide storage barrel through a pesticide spraying pump.

[0020] Optionally, in the metallurgical waste gas treatment device, the pesticide spraying unit comprises a pesticide spraying pipe and a plurality of pesticide spraying heads arranged at intervals on the pesticide spraying pipe.

[0021] Optionally, in the metallurgical waste gas treatment device, the wastewater recovery assembly comprises a water suction pipe, a water suction pump and a backflow pipe, one end of the water suction pipe is in communication with the filter tank, the other end of the water suction pipe is in communication with the water suction pump, one end of the backflow pipe is in communication with the water suction pump, and the other end of the backflow pipe is in communication with the water storage tank.

[0022] Optionally, in the metallurgical waste gas treatment device, the spraying unit comprises a water spraying disc and a plurality of water spraying heads arranged at intervals on the water spraying disc.

[0023] The water spraying disc is in communication with the water storage tank through a water spraying pipe and a water spraying pump.

[0024] Optionally, in the metallurgical waste gas treatment device, a water inlet pipe and a drain pipe are arranged on the water storage tank, and a second valve is arranged on the drain pipe.

[0025] From the above scheme can be seen, the metallurgical waste gas treatment device disclosed by the utility model, and the wastewater formed by the waste gas is firstly filtered by the first filter plate, then is mixed with the reagent sprayed by the reagent spraying unit, is fully mixed with the reagent under the stirring of the stirring assembly, removes the suspended solids, heavy metal ions and the like in the wastewater, and the wastewater treated by the reagent is filtered by the second filter plate, and is recycled to the water storage tank under the action of the wastewater recycling assembly. The wastewater is filtered twice, and is mixed and treated with the reagent between the two times of filtering, so that the wastewater treatment is more thorough, the impurity content in the wastewater is lower, and the possibility of the wastewater backflow polluting the clean water in the water storage tank can be reduced, thereby improving the waste gas treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is the whole structure schematic diagram of the metallurgical waste gas treatment device disclosed by the utility model embodiment.

[0028] Figure 2 It is the sectional view of the metallurgical waste gas treatment device disclosed by the utility model embodiment.

[0029] Figure 3 It is the structure schematic diagram of the first filter plate disclosed by the utility model embodiment.

[0030] Among them, 10 is the processing box, 11 is the first filter plate, 111 is the first handle, 112 is the filter screen, 12 is the air inlet pipe, 13 is the stirring assembly, 131 is the stirring rod, 132 is the stirring motor, 14 is the water outlet pipe, 141 is the first valve, 15 is the air extractor, 16 is the first supporting plate, 17 is the second supporting plate, 18 is the third supporting plate, 19 is the connecting plate.

[0031] 20 is the spraying assembly, 21 is the water storage tank, 211 is the water injection pipe, 212 is the drain pipe, 213 is the second valve, 22 is the spraying unit, 221 is the sprinkler, 222 is the sprinkler head, 23 is the sprinkler pipe, 24 is the sprinkler pump.

[0032] 30 is the reagent spraying assembly, 31 is the reagent storage barrel, 311 is the reagent injection pipe, 32 is the reagent spraying unit, 321 is the reagent spraying pipe, 322 is the reagent spraying head, 33 is the reagent spraying pump, 34 is the connecting pipe.

[0033] 40 is the filter box, 41 is the second filter plate, 411 is the second handle, 42 is the flow guide block.

[0034] 50 is a wastewater recovery assembly, 51 is a water suction pipe, 52 is a water suction pump, and 53 is a return pipe. DETAILED DESCRIPTION

[0035] The core of the utility model lies in discloses a metallurgical waste gas treatment device to improve the problem of wastewater backflow affecting waste gas treatment effect in prior art.

[0036] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0037] As shown in Figure 1 and Figure 2 The utility model discloses a metallurgical waste gas treatment device, including processing box 10, spray subassembly 20, scatter pesticide subassembly 30, filter box 40 and wastewater recovery assembly 50.

[0038] Among them, processing box 10 is provided with air inlet pipe 12 and exhaust pipe, and air inlet pipe 12 is provided with exhaust fan 15, and exhaust fan 15 is used to suck the waste gas into processing box 10, and the exhaust pipe is preferably arranged at the top of processing box 10. First filter plate 11 is arranged in processing box 10, and spray subassembly 20 includes water storage tank 21 and spray unit 22 communicated with water storage tank 21, and spray unit 22 is arranged in processing box 10. Scatter pesticide subassembly 30 includes scatter pesticide unit 32 arranged in processing box 10, and scatter pesticide unit 32 sprays pesticide on wastewater, and the bottom of processing box 10 is provided with stirring assembly 13, filter box 40 is communicated with processing box 10 to collect wastewater, and second filter plate 41 is arranged in filter box 40, and wastewater recovery assembly 50 is communicated with filter box 40 and water storage tank 21 respectively to recover wastewater.

[0039] Specifically, spray unit 22, first filter plate 11 and scatter pesticide unit 32 are sequentially arranged from top to bottom in processing box 10, air inlet pipe 12 is arranged below spray unit 22, and filter box 40 is arranged below processing box 10.

[0040] In use, the exhaust gas discharge pipe on the metallurgical equipment is communicated with the air inlet pipe 12, the exhaust gas enters the treatment box 10 under the action of the exhaust fan 15, the spraying unit 22 sprays the exhaust gas, the spraying water (clean water) of the spraying unit 22 can capture the particulate matter (such as dust, smoke dust and the like) in the exhaust gas, and the particulate matter is settled in the water through the wetting and gravity of the water, so that the removal of the particulate matter is realized, the spraying water becomes waste water, and then is filtered once through the first filter plate 11 and falls to the bottom of the treatment box 10. The pesticide spraying unit 32 sprays the pesticide into the waste water, and the stirring assembly 13 stirs the waste water, so that the sprayed pesticide and the waste water are fully mixed, the pesticide can remove the suspended solids, heavy metal ions and the like in the waste water, can reduce the concentration of toxic substances, and improves the water quality; the waste water treated by the pesticide enters the filter box 40, is filtered twice through the second filter plate 41, and is pumped back to the water storage tank 21 through the waste water recovery assembly 50 for repeated use.

[0041] The metallurgical exhaust gas treatment device disclosed in the embodiment of the utility model, the waste water formed by the exhaust gas is firstly filtered once through the first filter plate 11, then is mixed with the pesticide sprayed by the pesticide spraying unit 32, is fully mixed with the pesticide under the stirring of the stirring assembly 13, removes the suspended solids, heavy metal ions and the like in the waste water, and the waste water treated by the pesticide is filtered twice through the second filter plate 41 and is pumped back to the water storage tank 21 for repeated use under the action of the waste water recovery assembly 50. The waste water is filtered twice and is mixed with the pesticide between the two filtrations, the waste water treatment is more thorough, the impurity content in the waste water is lower, the possibility that the waste water backflow pollutes the clean water in the water storage tank 21 can be reduced, and therefore the exhaust gas treatment effect is improved.

[0042] Further, in some specific embodiments, as shown in Figure 1 The filter box 40 is connected with the treatment box 10 through the connecting plate 19, and can be detachably connected, for example, can be connected through clamping, or can be connected through welding.

[0043] Further, the first supporting plate 16 is arranged on the treatment box 10, and the exhaust fan 15 is placed on the first supporting plate 16, so that the first supporting plate 16 supports the exhaust fan.

[0044] Further, the first filter plate 11 is detachably connected with the treatment box 10; and / or, the second filter plate 41 is detachably connected with the filter box 40. Preferably, the first filter plate 11 is detachably connected with the treatment box 10, and the second filter plate 41 is detachably connected with the filter box 40. The connection mode can be plug-in connection, buckle connection or sliding connection.

[0045] Specifically, as shown in Figure 2 and Figure 3 , the first filter plate 11 comprises a filter screen 112 and a first handle 111 arranged at the end of the filter screen, and the treatment box 10 is provided with a sliding groove, and the filter screen 112 is in sliding fit with the sliding groove to realize detachable connection. The first handle 111 is exposed outside the treatment box 10, and the first handle 111 is arranged to facilitate the staff to pull the first filter plate 11, and facilitate the installation and disassembly of the first filter plate 11. The structure of the second filter plate 41 is preferably the same as that of the first filter plate 11, and the end of the second filter plate 41 is provided with a second handle 411, as shown in Figure 2 . The pore size of the filter screen of the first filter plate 11 and the second filter plate 41 is the same or different, and preferably the pore size of the filter screen is different, for example, the pore size of the filter screen of the second filter plate 41 is smaller than that of the first filter plate 11, so as to effectively remove impurities in the wastewater.

[0046] Further, as shown in Figure 2 , the stirring assembly 13 comprises a stirring rod 131 and a stirring motor 132 connected with the stirring rod 131. The stirring assembly 13 comprises at least one, and preferably two and is arranged symmetrically along the axis of the treatment box 10. Specifically, the stirring rod 131 comprises a stirring main rod and a plurality of stirring blades connected with the stirring main rod, and the stirring blades are preferably arranged symmetrically along the axis of the stirring main rod. The stirring main rod is connected with the stirring motor 132, and specifically can be directly connected with the output shaft of the stirring motor 132, and the stirring rod 131 is driven to rotate by the rotation of the stirring motor 132.

[0047] Further, as shown in Figure 2 , the filter box 40 is communicated with the treatment box 10 through the water outlet pipe 14, and the first valve 141 is arranged on the water outlet pipe 14. The first valve 141 can be a manual valve such as a ball valve, a gate valve, etc., or an electric valve, and the specific type is not limited, and can be selected according to actual needs.

[0048] Further, in order to guide the wastewater flowing into the filter box 40, a guide block 42 is arranged in the filter box 40, and the guide block 42 is arranged below the second filter plate 41, so that the wastewater flows to the position of the wastewater recovery assembly 50. Specifically, the guide block 42 can be in a wedge-shaped structure, and is inclined from the position of the second filter plate 41 to the position where the wastewater recovery assembly 50 communicates with the filter box 40. As shown in Figure 2 , the position where the wastewater recovery assembly 50 communicates with the filter box 40 is located at the lower right side of the filter box 40, and the guide block 42 is arranged to be inclined from the position of the second filter plate 41 to the lower right. The guide block 42 can be fixed in the filter box 40 by means of bolts, buckles, welding or embedding.

[0049] Further, as shown in Figure 1 and Figure 2 , the pesticide spraying assembly 30 comprises a pesticide storage barrel 31, and the pesticide storage barrel 31 stores pesticide. In order to facilitate the injection of pesticide into the pesticide storage barrel 31, the pesticide storage barrel 31 is provided with a pesticide injection pipe 311, and the pesticide spraying unit 32 communicates with the pesticide storage barrel 31 through the connecting pipe 34 and the pesticide spraying pump 33. The pesticide spraying pump 33 provides power, and can be a fixed-frequency pump or a variable-frequency pump, and preferably a variable-frequency pump, which can adjust the flow of pesticide according to demand. In order to provide support for the pesticide spraying pump 33, the third supporting plate 18 is arranged on the treatment box 10, and the pesticide spraying pump 33 is arranged on the third supporting plate 18, and the two can be fixed by bolts or the pesticide spraying pump 33 can be directly placed on the third supporting plate 18.

[0050] Further, as shown in Figure 2 , the pesticide spraying unit 32 comprises a pesticide spraying pipe 321 and a plurality of pesticide spraying heads 322 arranged at intervals on the pesticide spraying pipe 321. The pesticide spraying heads 322 can be arranged in a ring shape or a rectangular shape, and can be uniformly arranged or not uniformly arranged, and preferably uniformly arranged.

[0051] Further, as shown in Figure 1 and Figure 2 , the wastewater recovery assembly 50 comprises a water suction pipe 51, a water suction pump 52 and a backflow pipe 53. One end of the water suction pipe 51 is connected to the filter box 40, and the other end is connected to the water suction pump 52. One end of the backflow pipe 53 is connected to the water suction pump 52, and the other end is connected to the water storage tank 21. The water suction pump 52 can be a fixed-frequency pump or a variable-frequency pump, and preferably a variable-frequency pump. In order to support the water suction pump 52, the second supporting plate 17 is arranged on the treatment box 10, and the water suction pump 52 is arranged on the second supporting plate 17. The water suction pump 52 can be fixed on the second supporting plate 17 by bolts, or can be directly placed on the second supporting plate 17.

[0052] Further, as shown in Figure 2As shown, the spraying unit 22 includes a sprinkler 221 and a sprinkler head 222, the sprinkler head 222 includes a plurality of sprinkler heads arranged on the sprinkler 221, and the sprinkler 221 is communicated with the water storage tank 21 through a sprinkler pipe 23 and a sprinkler pump 24. The sprinkler head 222 can be a rotary sprinkler head or a fixed sprinkler head, and the specific type can be selected according to actual needs.

[0053] Further, as shown in the drawings, Figure 1 As shown, the water storage tank 21 is provided with a water filling pipe 211 and a drain pipe 212, and the drain pipe 212 is provided with a second valve 213. The water filling pipe 211 is arranged to facilitate water filling into the water storage tank 21, and the drain pipe 212 is arranged to facilitate water discharge from the water storage tank 21 for replacement. The second valve 213 can be a manual shut-off valve or an electric valve, and the specific type of the valve can be a ball valve or a gate valve.

[0054] Further, the bottom of the treatment tank 10 is preferably arranged in a rounded table shape, and the filter tank 40 is communicated with the rounded table position of the treatment tank 10 to facilitate the flow of wastewater into the filter tank 40 under the action of gravity.

[0055] It should be noted that each embodiment in the present specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0056] Hereinafter, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features.

[0057] Unless otherwise specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0058] The terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0059] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A metallurgical off-gas treatment device, characterized in that, The utility model relates to a water treatment device, including: a treatment box (10) provided with an air inlet pipe (12) and an air outlet pipe, the air inlet pipe (12) is provided with an exhaust fan (15), and the treatment box (10) is provided with a first filter plate (11); a spraying assembly (20) comprising a water storage tank (21) and a spraying unit (22) in communication with the water storage tank (21), the spraying unit (22) is arranged in the treatment box (10); a pesticide spraying assembly (30) comprising a pesticide spraying unit (32) arranged in the treatment box (10), and a stirring assembly (13) arranged at the bottom of the treatment box (10); a filter box (40) in communication with the treatment box (10) to collect wastewater, and provided with a second filter plate (41) in the filter box (40); a wastewater recovery assembly (50) in communication with the filter box (40) and the water storage tank (21) respectively.

2. The metallurgical off-gas treatment device according to claim 1, characterized in that The first filter plate (11) is detachably connected with the treatment box (10); and / or The second filter plate (41) is detachably connected with the filter box (40).

3. The metallurgical off-gas treatment device according to claim 1, wherein The stirring assembly (13) comprises a stirring rod (131) and a stirring motor (132) connected with the stirring rod (131).

4. The metallurgical off-gas treatment device according to claim 1, wherein The filter box (40) is in communication with the treatment box (10) through a water outlet pipe (14), and the water outlet pipe (14) is provided with a first valve (141).

5. The metallurgical off-gas treatment device according to claim 4, wherein The filter box (40) is provided with a flow guide block (42).

6. The metallurgical off-gas treatment device according to claim 1, wherein The pesticide spraying assembly (30) comprises a pesticide storage barrel (31), and the pesticide spraying unit (32) is in communication with the pesticide storage barrel (31) through a pesticide spraying pump (33).

7. The metallurgical off-gas treatment device according to claim 6, characterized in that The pesticide spraying unit (32) comprises a pesticide spraying pipe (321) and a pesticide spraying head (322), the pesticide spraying pipe (321) is in communication with the pesticide spraying pump (33), and the pesticide spraying head (322) comprises a plurality of pesticide spraying heads arranged at intervals on the pesticide spraying pipe (321).

8. The metallurgical off-gas treatment device according to claim 1, wherein The wastewater recovery assembly (50) comprises a water suction pipe (51), a water suction pump (52) and a backflow pipe (53), one end of the water suction pipe (51) is in communication with the filter box (40), the other end is in communication with the water suction pump (52), one end of the backflow pipe (53) is in communication with the water suction pump (52), and the other end is in communication with the water storage tank (21).

9. The metallurgical off-gas treatment device according to any one of claims 1 to 8, characterized in that, The spraying unit (22) comprises a water spraying disc (221) and a water spraying head (222), and the water spraying head (222) comprises a plurality of water spraying heads arranged at intervals on the water spraying disc (221). The water spraying disc (221) is in communication with the water storage tank (21) through a water spraying pipe (23) and a water spraying pump (24).

10. The metallurgical off-gas treatment device according to claim 9, characterized in that The water storage tank (21) is provided with a water filling pipe (211) and a drain pipe (212), and the drain pipe (212) is provided with a second valve (213).

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