Treatment device for recycling hot galvanizing waste hydrochloric acid

Abstract

The utility model relates to the technical field of hot galvanizing waste hydrochloric acid treatment, and discloses a hot galvanizing waste hydrochloric acid recycling treatment device which comprises a treatment frame, a stirring and heating mechanism is arranged on the treatment frame, and the stirring and heating mechanism comprises a copper circulating pipe, an input pipe, an output pipe, a second gear, a first gear, an external pipeline and a bearing pipeline. The copper circulating pipe is movably connected with the interior of the treatment frame, and the opposite ends of the input pipe and the output pipe are fixedly connected with the two ends of the copper circulating pipe correspondingly. According to the treatment device for recycling the hot galvanizing waste hydrochloric acid, the waste hydrochloric acid can be effectively and uniformly heated, the evaporation efficiency of the waste hydrochloric acid is improved, components in the waste hydrochloric acid can be rapidly separated, meanwhile, the waste hydrochloric acid cannot react with copper, and therefore the service life of the structure is prolonged; waste hydrochloric acid is directly contacted with the copper pipe to be heated, heat loss can be reduced, and heat utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-dip galvanizing waste hydrochloric acid treatment, in particular to a treatment device for regenerating and utilizing hot-dip galvanizing waste hydrochloric acid. Background Art

[0002] In recent years, with the increase of national investment in infrastructure, the steel and its products processing industry has developed rapidly. In order to effectively protect steel from corrosion, hot-dip galvanizing process has been widely used. The main steps of this process include: alkaline degreasing, water washing, pickling and rust removal, water washing, coating of plating agent, hot-dip galvanizing, water cooling, passivation. Hydrochloric acid is usually used in the pickling process, but hydrochloric acid pickling will produce a large amount of acid mist, acidic rinsing water and waste acid. The above waste hydrochloric acid is highly corrosive. Direct discharge will damage pipelines and underground buildings. If it enters the water body, it will affect the pH value of the water body, destroy the self-purification ability of the water body, and seriously endanger the surrounding environment. Therefore, it is very necessary and urgent to harmlessly treat and recycle the waste hydrochloric acid.

[0003] However, the following problems still exist in actual use:

[0004] When treating waste hydrochloric acid, most of the treatment is carried out by evaporating the waste hydrochloric acid. The existing method is to insert a heating tube into the waste hydrochloric acid or provide temperature through water vapor. During the treatment process, this method has a slow heating efficiency for the waste hydrochloric acid due to a single heating source. At the same time, during the heating process, the water body is heated unevenly, which affects the subsequent evaporation efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a treatment device for the regeneration of waste hydrochloric acid from hot-dip galvanizing, which effectively improves the treatment efficiency of waste hydrochloric acid and ensures that the waste hydrochloric acid can be evenly heated during the treatment process. The above advantages solve the problems raised in the background technology.

[0006] The utility model provides the following technical scheme: a treatment device for regenerating and utilizing hot-dip galvanizing waste hydrochloric acid, comprising: a treatment frame, a stirring and heating mechanism is arranged on the treatment frame, the stirring and heating mechanism comprises a copper circulation pipe, an input pipe, an output pipe, gear 2, gear 1, an external pipe and a receiving pipe, the copper circulation pipe is movably connected to the inside of the treatment frame, the opposite ends of the input pipe and the output pipe are respectively fixedly connected to the two ends of the copper circulation pipe, the outer surfaces of the input pipe and the output pipe are respectively rotatably sleeved with the inside of the two sides of the treatment frame, both sides of the treatment frame are fixedly connected with brackets, the outer surface of the receiving pipe is fixedly connected to the upper surface of the bracket, the inside of the receiving pipe is rotatably connected to the end outer surface of the input pipe and the end outer surface of the output pipe, the end outer surface of the output pipe is fixedly connected with gear 2, a motor is fixedly installed on one side of the treatment frame, the output shaft of the motor is fixedly connected with gear 1, and the gear 1 is meshed with gear 2.

[0007] Preferably, an upper cover is connected to the upper surface of the processing frame, an output mechanism is provided on one side of the processing frame, the output mechanism includes a collection frame, an L-shaped conveying plate and a cooling block, a guide plate is connected to the inside of the upper cover, one side of the collection frame is fixedly connected to the side of the processing frame, one side of the L-shaped conveying plate is connected to the inside of the collection frame, the other side of the L-shaped conveying plate is plugged into the inside of the upper cover, and one side of the cooling block is fixedly connected to the inner side of the collection frame.

[0008] Preferably, copper heating pipes are installed on both sides of the interior of the processing frame, the interior of the receiving pipe is connected to an external pipe, and one end of the external pipe is fitted with the end surface of the input pipe and the end surface of the output pipe.

[0009] Preferably, a glass plate is fixedly connected to the side of the collecting frame, and an inlet pipe is fixedly connected to the middle position of the upper surface of the upper cover.

[0010] Preferably, a drain pipe is fixedly connected to one side of the collection frame, and a feed pipe is fixedly connected to the other side of the collection frame, and the feed pipe extends into the interior of the cooling block.

[0011] Preferably, circular grooves are provided inside the receiving pipes on both sides of the processing frame, and balls are movably connected inside the circular grooves, and the outer surfaces of the balls are respectively in contact with the outer surfaces of the end portions of the input pipe on one side and the output pipe on one side.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The treatment device for recycling waste hydrochloric acid from hot-dip galvanizing is provided with a stirring and heating mechanism. When the waste hydrochloric acid entering the treatment frame is treated, first, the external water vapor is connected to the external pipes connected to the ends of the input pipe and the output pipe, respectively. At this time, the water vapor first enters the inside of the copper circulation pipe through the input pipe, and then is transported to the inside of the output pipe by the copper circulation pipe, and the output pipe is transported to the inside of the external pipe, so that the water vapor circulates inside the copper circulation pipe, thereby preheating the waste hydrochloric acid contacting the outer surface of the copper circulation pipe. At this time, the internal copper heating pipe works to increase the temperature of the waste hydrochloric acid again, and synchronously drives the motor to work to drive the gear 1 to rotate, and the gear 1 drives the gear 1 to rotate with it. The meshed gear 2 rotates, so that the output pipe connected to the gear 2 rotates synchronously. Since the output pipe and the input pipe are both rotatably sleeved with the processing frame, the copper circulation pipe connected to the ends of the output pipe and the input pipe rotates synchronously, and the waste hydrochloric acid in the processing frame is slowly stirred, thereby improving the evaporation efficiency inside the waste hydrochloric acid. The setting of this structure can effectively heat the waste hydrochloric acid evenly, so that the waste hydrochloric acid can be evenly heated, the evaporation efficiency of the waste hydrochloric acid can be accelerated, and the components inside the waste hydrochloric acid can be quickly separated. At the same time, since the waste hydrochloric acid will not react with copper, the service life of the structure is extended. The waste hydrochloric acid is directly heated in contact with the copper tube, which can reduce heat loss and increase heat utilization.

[0014] 2. The processing device for recycling waste hydrochloric acid from hot-dip galvanizing is provided with an output mechanism. When the steam generated by the waste hydrochloric acid treatment is collected, the steam is firstly guided by a guide plate provided inside the upper cover. Since the guide plate is in an arc-shaped structure, one end is higher than the other end, and the lower end is placed at the end position of the L-shaped conveying plate. When the steam inside increases, it will continuously enter the inside of the L-shaped conveying plate, and then be transported into the inside of the collection frame through the L-shaped conveying plate. At this time, a certain amount of cooling water is injected into the cooling block inside the collection frame through the feeding pipe, and the steam entering the collection frame is cooled, thereby performing gas-liquid conversion inside the collection frame to realize centralized collection of the converted liquid. The arrangement of this structure can effectively process the generated steam, make it liquid for easy collection, and avoid waste of steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0016] Figure 2 This is a schematic diagram of the internal structure of the processing frame of the utility model;

[0017] Figure 3 This is a partial structural diagram of the stirring and heating mechanism of the utility model;

[0018] Figure 4This is a schematic diagram of the output mechanism structure of the utility model;

[0019] Figure 5 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. processing frame; 2. upper cover; 3. inlet pipe; 4. output mechanism; 5. copper heating pipe; 6. copper circulation pipe; 7. glass plate; 8. input pipe; 9. output pipe; 10. external pipeline; 11. gear one; 12. motor; 13. gear two; 14. receiving pipeline; 15. ball bearing; 16. circular groove; 17. bracket; 18. L-shaped conveying plate; 19. collecting frame; 20. cooling block; 21. feed pipe; 22. drain pipe; 23. guide plate; 24. stirring and heating mechanism. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 5A treatment device for regenerating and utilizing waste hydrochloric acid from hot-dip galvanizing, comprising: a treatment frame 1, a stirring and heating mechanism 24 is arranged on the treatment frame 1, the stirring and heating mechanism 24 comprises a copper circulation pipe 6, an input pipe 8, an output pipe 9, a gear 2 13, a gear 1 11, an external pipe 10 and a receiving pipe 14, the copper circulation pipe 6 is movably connected to the inside of the treatment frame 1, the opposite ends of the input pipe 8 and the output pipe 9 are respectively fixedly connected to the two ends of the copper circulation pipe 6, the outer surfaces of the input pipe 8 and the output pipe 9 are respectively rotatably sleeved with the inside of the two sides of the treatment frame 1, the two sides of the treatment frame 1 are fixedly connected with a bracket 17, the receiving pipe 14 The outer surface is fixedly connected to the upper surface of the bracket 17, the interior of the receiving pipe 14 is rotatably connected to the outer surface of the end of the input pipe 8 and the outer surface of the end of the output pipe 9, respectively, the outer surface of the end of the output pipe 9 is fixedly connected to the gear 2 13, a motor 12 is fixedly installed on one side of the processing frame 1, the output shaft of the motor 12 is fixedly connected to the gear 11, the gear 11 and the gear 2 13 are meshed, the receiving pipes 14 on both sides of the processing frame 1 are provided with circular grooves 16, the interior of the circular grooves 16 is movably connected with balls 15, the outer surfaces of the balls 15 are respectively connected to the outer surface of the end of the input pipe 8 on one side and the end of the output pipe 9 on one side. The outer surfaces are butted. Since copper heating pipes 5 are installed on both sides of the interior of the processing frame 1, the interior of the receiving pipe 14 is connected to an external pipe 10, and one end of the external pipe 10 is in contact with the end surface of the input pipe 8 and the end surface of the output pipe 9. The external water vapor is respectively connected to the external pipe 10 at the ends of the input pipe 8 and the output pipe 9. At this time, the water vapor first enters the interior of the copper circulation pipe 6 through the input pipe 8, and then is transported to the interior of the output pipe 9 by the copper circulation pipe 6, and the output pipe 9 is transported to the interior of the external pipe 10, so that the water vapor circulates in the copper circulation pipe 6, thereby heating the copper circulation pipe 6. The waste hydrochloric acid in contact with the outer surface is preheated, and the internal copper heating tube 5 works at this time to increase the temperature of the waste hydrochloric acid again, and the motor 12 works synchronously to drive the gear 11 to rotate, and the gear 11 drives the gear 2 13 meshing therewith to rotate, so that the output tube 9 connected to the gear 2 13 rotates synchronously, and since the output tube 9 and the input tube 8 are both rotatably sleeved with the processing frame 1, the copper circulation tube 6 connected to the ends of the output tube 9 and the input tube 8 rotates synchronously, and the waste hydrochloric acid in the processing frame 1 is slowly stirred, so that the waste hydrochloric acid inside the processing frame 1 is evaporated.

[0023] See also Figure 1 and Figure 4The upper surface of the processing frame 1 is connected to the upper cover 2, and an output mechanism 4 is provided on one side of the processing frame 1. The output mechanism 4 includes a collection frame 19, an L-shaped conveying plate 18 and a cooling block 20. The interior of the upper cover 2 is connected with a guide plate 23. One side of the collection frame 19 is fixedly connected to the side of the processing frame 1, one side of the L-shaped conveying plate 18 is connected to the interior of the collection frame 19, and the other side of the L-shaped conveying plate 18 is plugged into the interior of the upper cover 2. One side of the cooling block 20 is fixedly connected to the inner side of the collection frame 19, and one side of the collection frame 19 is fixedly connected to a drain pipe 22. The other side of 19 is fixedly connected with a feed pipe 21, which extends into the interior of the cooling block 20. The steam is guided by the guide plate 23 arranged inside the upper cover 2, and the guided steam enters the interior of the L-shaped conveying plate 18, and is conveyed into the interior of the collecting frame 19 through the L-shaped conveying plate 18. At this time, a certain amount of cooling water is injected into the cooling block 20 inside the collecting frame 19 through the feed pipe 21, and the steam entering the collecting frame 19 is cooled, so that gas-liquid conversion is performed inside the collecting frame 19, and the converted liquid is collected centrally.

[0024] See also Figure 1 A glass plate 7 is fixedly connected to the side of the collecting frame 19, which is mainly used to observe the gas-liquid conversion amount inside the collecting frame so that the liquid can be discharged in time. An inlet pipe 3 is fixedly connected to the middle position of the upper surface of the upper cover 2.

[0025] Working principle: when in use, when the waste hydrochloric acid entering the processing frame 1 is processed, first, the external water vapor is connected to the external pipe 10 connected to the ends of the input pipe 8 and the output pipe 9 respectively. At this time, the water vapor first enters the inside of the copper circulation pipe 6 through the input pipe 8, and then is transported to the inside of the output pipe 9 by the copper circulation pipe 6, and the output pipe 9 is transported to the inside of the external pipe 10, so that the water vapor circulates inside the copper circulation pipe 6, thereby preheating the waste hydrochloric acid contacting the outer surface of the copper circulation pipe 6. At this time, the internal copper heating pipe 5 works to increase the temperature of the waste hydrochloric acid again, and synchronously drives the gear 11 to rotate through the motor 12, and the gear 11 drives the gear 2 13 meshing therewith to rotate, so that the output pipe 9 connected to the gear 2 13 rotates synchronously. Since the output pipe 9 and the input pipe 8 are both rotatably sleeved with the processing frame 1, the copper circulation pipe 6 connected to the ends of the output pipe 9 and the input pipe 8 rotates synchronously, and the waste hydrochloric acid in the processing frame 1 is slowly stirred, so that the waste hydrochloric acid inside the processing frame 1 is evaporated.

[0026] When collecting the steam generated by the treatment of waste hydrochloric acid, the steam is first guided by the guide plate 23 arranged inside the upper cover 2, and the guided steam enters the interior of the L-shaped conveying plate 18, and is conveyed into the interior of the collecting frame 19 through the L-shaped conveying plate 18. At this time, a certain amount of cooling water is injected into the cooling block 20 inside the collecting frame 19 through the feeding pipe 21, so as to cool the steam entering the collecting frame 19, thereby performing gas-liquid conversion inside the collecting frame 19, and collecting the converted liquid in a centralized manner.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A treatment device for regenerating waste hydrochloric acid from hot-dip galvanizing, characterized in that: include: A processing frame (1), wherein the processing frame (1) is provided with a stirring and heating mechanism (24), wherein the stirring and heating mechanism (24) comprises a copper circulation pipe (6), an input pipe (8), an output pipe (9), a second gear (13), a first gear (11), an external pipe (10) and a receiving pipe (14), wherein the copper circulation pipe (6) is movably connected to the interior of the processing frame (1), the opposite ends of the input pipe (8) and the output pipe (9) are respectively fixedly connected to the two ends of the copper circulation pipe (6), and the outer surfaces of the input pipe (8) and the output pipe (9) are respectively connected to the internal rotating parts of the two sides of the processing frame (1). The processing frame (1) is rotatably connected to the outer surface of the receiving pipe (14) and the outer surface of the receiving pipe (14). The receiving pipe (14) is rotatably connected to the outer surface of the end of the input pipe (8) and the outer surface of the end of the output pipe (9). The outer surface of the end of the output pipe (9) is fixedly connected to a second gear (13). A motor (12) is fixedly installed on one side of the processing frame (1). The output shaft of the motor (12) is fixedly connected to a first gear (11). The first gear (11) and the second gear (13) are meshed.

2. The device for recycling waste hydrochloric acid from hot-dip galvanizing according to claim 1, characterized in that: The upper surface of the processing frame (1) is connected to an upper cover (2); an output mechanism (4) is provided on one side of the processing frame (1); the output mechanism (4) comprises a collection frame (19), an L-shaped conveying plate (18) and a cooling block (20); a guide plate (23) is connected to the interior of the upper cover (2); one side of the collection frame (19) is fixedly connected to the side of the processing frame (1); one side of the L-shaped conveying plate (18) is connected to the interior of the collection frame (19); the other side of the L-shaped conveying plate (18) is plugged into the interior of the upper cover (2); and one side of the cooling block (20) is fixedly connected to the inner side of the collection frame (19).

3. The device for recycling waste hydrochloric acid from hot-dip galvanizing according to claim 1 is characterized in that: Copper heating pipes (5) are installed on both sides of the interior of the processing frame (1), and the interior of the receiving pipe (14) is connected to an external pipe (10), and one end of the external pipe (10) is in contact with the end surface of the input pipe (8) and the end surface of the output pipe (9).

4. A processing device for regenerating and utilizing waste hydrochloric acid from hot-dip galvanizing according to claim 2, characterized in that: A glass plate (7) is fixedly connected to the side of the collecting frame (19), and an inlet pipe (3) is fixedly connected to the middle of the upper surface of the upper cover (2).

5. The device for recycling waste hydrochloric acid from hot-dip galvanizing according to claim 2, characterized in that: A drainage pipe (22) is fixedly connected to one side of the collection frame (19), and a feed pipe (21) is fixedly connected to the other side of the collection frame (19), wherein the feed pipe (21) extends into the interior of the cooling block (20).

6. The device for recycling waste hydrochloric acid from hot-dip galvanizing according to claim 1, characterized in that: The receiving pipes (14) on both sides of the processing frame (1) are provided with circular grooves (16) inside, and balls (15) are movably connected inside the circular grooves (16). The outer surfaces of the balls (15) are respectively in contact with the outer surfaces of the ends of the input pipe (8) on one side and the outer surfaces of the ends of the output pipe (9) on the other side.

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