Environment-friendly hot galvanizing waste hydrochloric acid treatment tank

Abstract

The utility model provides an environment-friendly hot galvanizing waste hydrochloric acid treatment pond, and relates to the technical field of waste hydrochloric acid reutilization, the environment-friendly hot galvanizing waste hydrochloric acid treatment pond comprises a treatment pond, a heating pipe and a liquid discharge pipe, the top of the treatment pond is symmetrically provided with top beams, the tops of the top beams are provided with a fixed frame, and the fixed frame is internally provided with an impurity removal mechanism; the fixing frame is placed on the top of the top beam, the output end of the motor can drive the felt roller to rotate on one side of the fixing frame, the felt roller stirs waste hydrochloric acid on the surface of the treatment pond to flow towards the waste hydrochloric acid, and after impurities contained in the waste hydrochloric acid on the surface of the treatment pond make contact with the felt roller, the felt roller can adhere the impurities to the surface of the felt roller. When the felt roller drives the impurities to rotate to the position of the scraping plate, the scraping plate can scrape the impurities adhering to the felt roller to the material guiding plate, the material guiding plate in the inclined state drives the impurities to roll towards the interior of the material bearing box so that the impurities can be automatically conveyed into the material bearing box, and the impurities on the surface of waste hydrochloric acid can be automatically removed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste hydrochloric acid recycling, in particular to an environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool. Background Art

[0002] Zinc is easily soluble in acid and alkali, so it is called an amphoteric metal. Zinc hardly changes in dry air. In humid air, a dense basic zinc carbonate film will be formed on the surface of zinc. In sulfur dioxide, hydrogen sulfide and marine atmospheres, zinc has poor corrosion resistance. Especially in high temperature, high humidity and organic acid atmospheres, zinc coating is easily corroded. The standard electrode potential of zinc is -0.76V. For steel substrates, zinc coating is an anodic coating. It is mainly used to prevent corrosion of steel. The quality of its protective performance is closely related to the thickness of the coating. After passivation, dyeing or coating with a light protectant, the protective and decorative properties of the zinc coating can be significantly improved.

[0003] A large amount of waste hydrochloric acid will be generated after hot-dip galvanizing. In order to protect the environment and avoid wasting chemical materials, the used waste hydrochloric acid can be recycled and reused. Before recycling the waste hydrochloric acid, the waste hydrochloric acid needs to be preheated to improve the yield of the waste hydrochloric acid regeneration process. However, after the mechanical parts are pickled, the impurities on the surface of the parts also enter the waste hydrochloric acid, which will affect the efficiency of the evaporation and crystallization of the waste hydrochloric acid. Therefore, the utility model proposes an environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes an environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool to solve the problem in the prior art that impurities on the surface of mechanical parts enter the waste hydrochloric acid after pickling, which affects the efficiency of evaporation and crystallization of the waste hydrochloric acid.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical scheme: an environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool, including a treatment pool, a heating pipe and a drain pipe, the interior of the treatment pool is symmetrically provided with heating pipes, the bottom of the treatment pool is connected to the drain pipe, the top of the treatment pool is symmetrically provided with top beams, a fixing frame is placed on the top of the top beam, and a debris removal mechanism is provided inside the fixing frame.

[0006] Further improvements are: the impurity removal mechanism includes a felt roller, a motor, a scraper, a material guide plate and a material receiving box, the felt roller is rotatably connected to one side of the fixed frame, a motor is installed on one side of the fixed frame, the output end of the motor is fixedly connected to one end of the felt roller, the scraper is fixedly connected to the inner side of the fixed frame, a material guide plate is provided on one side of the scraper, and a material receiving box is provided at the bottom of the fixed frame.

[0007] A further improvement is that a fixing rod is fixedly connected to the inner side of the fixing frame, a connecting hook is symmetrically fixedly connected to the back side of the material receiving box, one end of the connecting hook is engaged with the fixing rod, and fixing claws are symmetrically fixedly connected to the two sides of the fixing frame, and the bottom of the material receiving box is fit-connected to the bottom end of the fixing claw.

[0008] A further improvement is that a filter plate is provided at the bottom of the material receiving box, the top of the scraper is fitted and connected to the outer side of the felt roller, and the bottom of the scraper is fitted and connected to the top of the material guide plate.

[0009] A further improvement is that a plurality of flow tubes are distributed in an annular pattern inside the heating tube, a shell is provided outside the flow tube, one end of the heating tube is connected to the delivery end of the steam generator, and the other end of the heating tube is connected to the return pipe of the steam generator.

[0010] A further improvement is that connecting pipes are symmetrically fixedly connected to both ends of the heating pipe, a plurality of mounting holes are arranged inside the connecting pipe, bolts are arranged inside the mounting holes, and nuts are threadedly connected to both ends of the bolts.

[0011] A further improvement is that a top cover is provided on the top of the treatment pool, the top of the top cover is connected to a vent pipe, and the top of the vent pipe is detachably connected to an elbow pipe by bolts.

[0012] The utility model has the following beneficial effects: the fixed frame is placed on the top of the top beam, and the output end of the motor can drive the felt roller to rotate on one side of the fixed frame, and the felt roller stirs the waste hydrochloric acid on the surface of the treatment pool to flow toward it. After the impurities contained in the waste hydrochloric acid on the surface of the treatment pool contact the felt roller, the felt roller will adhere the impurities to its surface, and when the felt roller drives the impurities to rotate to the position of the scraper, the scraper will scrape the impurities adhered to the felt roller onto the guide plate, and the inclined guide plate drives the impurities to roll toward the inside of the material receiving box to automatically transport the impurities to the inside of the material receiving box, automatically remove the impurities on the surface of the waste hydrochloric acid, and a small amount of waste hydrochloric acid is still left in the impurities. The filter plate at the bottom of the material receiving box plays a screening role, which can separate the waste hydrochloric acid from the impurities, and only leave the impurities in the inside of the material receiving box. After the inside of the material receiving box is full of impurities, the material receiving box is dragged to move upward, the connecting hook is separated from the fixed rod, and then the material receiving box is extracted from the inner side of the fixed frame, so that people can pour out the impurities in the material receiving box for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the impurity removal mechanism of the utility model;

[0015] Figure 3 The heating mechanism structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the top cover structure of the utility model.

[0017] Among them: 1. treatment tank; 2. heating pipe; 3. drainage pipe; 4. top beam; 5. fixed frame; 6. felt roller; 7. motor; 8. scraper; 9. material guide plate; 10. material receiving box; 11. filter plate; 12. fixing claw; 13. fixing rod; 14. connecting hook; 15. flow pipe; 16. outer shell; 17. connecting pipe; 18. top cover; 19. ventilation pipe. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes an environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool, including a treatment pool 1, a heating pipe 2 and a drainage pipe 3. The heating pipe 2 is symmetrically arranged inside the treatment pool 1, and the bottom of the treatment pool 1 is connected to the drainage pipe 3. The top of the treatment pool 1 is symmetrically provided with a top beam 4, and a fixing frame 5 is placed on the top of the top beam 4. The fixing frame 5 is provided with an impurity removal mechanism inside. The waste hydrochloric acid is poured into the treatment pool 1, and the impurities floating on the surface of the waste hydrochloric acid are first removed by the impurity removal mechanism, and then the impurity removal mechanism is removed from the top of the treatment pool 1. According to the fact that hydrogen chloride is easy to volatilize and Due to the property of being easily soluble in water and the law of the solubility of ferrous chloride in hydrochloric acid solution, the waste hydrochloric acid in the treatment pool 1 is heated by the heating tube 2, and the gas generated by evaporation is condensed into dilute hydrochloric acid through the external condenser, and returned to the pickling workshop for reuse. After the waste acid liquid is evaporated and concentrated to make the ferrous chloride reach a certain concentration, the concentrated liquid can be cooled to precipitate the ferrous chloride in the form of crystals, and then centrifuged to obtain ferrous chloride crystals. The discharge pipe 3 is connected to a filtering device to separate the ferrous chloride crystals, and the water is discharged to the outside, reducing harmful emissions and playing an environmental protection role.

[0020] The impurity removal mechanism includes a felt roller 6, a motor 7, a scraper 8, a material guide plate 9 and a material receiving box 10. The felt roller 6 is rotatably connected to one side of the fixed frame 5, and a motor 7 is installed on one side of the fixed frame 5. The output end of the motor 7 is fixedly connected to one end of the felt roller 6. The scraper 8 is fixedly connected to the inner side of the fixed frame 5. A material guide plate 9 is provided on one side of the scraper 8. A material receiving box 10 is provided at the bottom of the fixed frame 5. A filter plate 11 is provided at the bottom of the material receiving box 10. The top of the scraper 8 is fitted and connected to the outer side of the felt roller 6, and the bottom of the scraper 8 is fitted and connected to the top of the material guide plate 9. The fixed frame 5 is placed on the top of the top beam 4, and the output end of the motor 7 can drive the felt roller 6 to move in the fixed position. One side of the fixed frame 5 rotates, and the felt roller 6 stirs the waste hydrochloric acid on the surface of the treatment tank 1 to flow toward it. After the impurities contained in the waste hydrochloric acid on the surface of the treatment tank 1 come into contact with the felt roller 6, the felt roller 6 will adhere the impurities to its surface. When the felt roller 6 drives the impurities to rotate to the position of the scraper 8, the scraper 8 will scrape the impurities adhered to the felt roller 6 onto the guide plate 9. The inclined guide plate 9 drives the impurities to roll toward the inside of the material receiving box 10, so as to automatically transport the impurities to the inside of the material receiving box 10, automatically remove the impurities on the surface of the waste hydrochloric acid, and a small amount of waste hydrochloric acid is left in the impurities. The filter plate 11 at the bottom of the material receiving box 10 plays a screening role, which can separate the waste hydrochloric acid from the impurities, leaving only the impurities in the inside of the material receiving box 10.

[0021] A fixing rod 13 is fixedly connected to the inner side of the fixing frame 5, and a connecting hook 14 is symmetrically fixedly connected to the back side of the material receiving box 10, one end of the connecting hook 14 is engaged with the fixing rod 13, and fixing claws 12 are symmetrically fixedly connected to the two sides of the fixing frame 5, and the bottom of the material receiving box 10 is fitly connected to the bottom end of the fixing claw 12. When the interior of the material receiving box 10 is full of impurities, the material receiving box 10 is dragged upward to separate the connecting hook 14 from the fixing rod 13, and then the material receiving box 10 is extracted from the inner side of the fixing frame 5, so that people can pour out the impurities inside the material receiving box 10 for processing, and then the connecting hook 14 on one side of the material receiving box 10 is re-engaged on the outer side of the fixing rod 13 to install the material receiving box 10 back to the bottom of the fixing frame 5 so that it continues to store impurities.

[0022] A plurality of flow tubes 15 are distributed in a ring shape inside the heating tube 2, and an outer shell 16 is provided on the outer side of the flow tube 15. One end of the heating tube 2 is connected to the delivery end of the steam generator, and the other end of the heating tube 2 is connected to the reflux pipe of the steam generator. The steam generator delivers hot steam to one end of the heating tube 2, and the hot steam flows from one end to the other end of the heating tube 2, so that the hot steam delivers heat to the flow tube 15 through the heating tube 2. The flow tube 15 transfers heat to the waste hydrochloric acid in the treatment tank 1 through the outer shell 16 to heat it. After the hot steam flows out from the other end of the heating tube 2, it flows back to the inside of the steam generator through the reflux pipe, and then flows to the heating tube 2 again to circulate and heat the waste hydrochloric acid in the treatment tank 1.

[0023] The two ends of the heating tube 2 are symmetrically fixedly connected with connecting pipes 17, and a plurality of mounting holes are arranged inside the connecting pipe 17. Bolts are arranged inside the mounting holes, and nuts are threadedly connected at both ends of the bolts. The pipeline at the output end of the steam generator is also provided with a connecting pipe 17. After it is docked with the connecting pipe 17 at one end of the heating tube 2, the bolts are inserted into the mounting holes, and nuts are tightened at both ends of the bolts to connect the pipeline at the output end of the heating tube 2 with the heating tube 2. The other end of the heating tube 2 is connected with the return pipe in the same way.

[0024] A top cover 18 is provided on the top of the treatment pool 1, and a vent pipe 19 is connected to the top of the vent pipe 19. The top of the vent pipe 19 is detachably connected to an elbow pipe by bolts. After the fixing frame 5 is removed from the top of the treatment pool 1, the top cover 18 is covered on the top of the treatment pool 1. The steam generated during heating is discharged into the external condenser through the vent pipe 19 to condense into dilute hydrochloric acid. An elbow pipe is installed on the vent pipe 19 to avoid the backflow of steam.

[0025] The galvanized waste hydrochloric acid treatment pool places a fixed frame 5 on the top of the top beam 4, and the output end of the motor 7 can drive the felt roller 6 to rotate on one side of the fixed frame 5. The felt roller 6 stirs the waste hydrochloric acid on the surface of the treatment pool 1 to flow toward it. After the impurities contained in the waste hydrochloric acid on the surface of the treatment pool 1 come into contact with the felt roller 6, the felt roller 6 will adhere the impurities to its surface. When the felt roller 6 drives the impurities to rotate to the position of the scraper 8, the scraper 8 will scrape the impurities adhered to the felt roller 6 onto the guide plate 9. The inclined guide plate 9 drives the impurities to roll toward the inside of the material receiving box 10, and the impurities are used to remove the impurities. The impurities are automatically transported to the interior of the material receiving box 10, and the impurities on the surface of the waste hydrochloric acid are automatically removed. A small amount of waste hydrochloric acid is still left in the impurities. The filter plate 11 at the bottom of the material receiving box 10 plays a screening role, which can separate the waste hydrochloric acid from the impurities, leaving only the impurities in the interior of the material receiving box 10. After the interior of the material receiving box 10 is full of impurities, the material receiving box 10 is dragged upward to separate the connecting hook 14 from the fixing rod 13, and then the material receiving box 10 is extracted from the inner side of the fixing frame 5, so that people can pour out the impurities in the material receiving box 10 for treatment.

[0026] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool, comprising a treatment pool (1), a heating pipe (2) and a drainage pipe (3), characterized in that: A heating pipe (2) is symmetrically arranged inside the treatment pool (1), a drainage pipe (3) is connected to the bottom of the treatment pool (1), a top beam (4) is symmetrically arranged on the top of the treatment pool (1), a fixing frame (5) is placed on the top of the top beam (4), and a debris removal mechanism is arranged inside the fixing frame (5); The impurity removal mechanism comprises a felt roller (6), a motor (7), a scraper (8), a material guide plate (9) and a material receiving box (10); the felt roller (6) is rotatably connected to one side of the fixed frame (5); the motor (7) is mounted on one side of the fixed frame (5); the output end of the motor (7) is fixedly connected to one end of the felt roller (6); the scraper (8) is fixedly connected to the inner side of the fixed frame (5); the material guide plate (9) is provided on one side of the scraper (8); and the material receiving box (10) is provided at the bottom of the fixed frame (5).

2. The environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool according to claim 1, characterized in that: A fixing rod (13) is fixedly connected to the inner side of the fixing frame (5), a connecting hook (14) is symmetrically fixedly connected to the back side of the material receiving box (10), one end of the connecting hook (14) is snap-fitted and connected to the fixing rod (13), and fixing claws (12) are symmetrically fixedly connected to the two sides of the fixing frame (5), and the bottom of the material receiving box (10) is fit-fitted and connected to the bottom end of the fixing claw (12).

3. The environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool according to claim 1, characterized in that: A filter plate (11) is provided at the bottom of the material receiving box (10), the top of the scraper (8) is fitted and connected to the outer side of the felt roller (6), and the bottom of the scraper (8) is fitted and connected to the top of the material guide plate (9).

4. The environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool according to claim 1, characterized in that: A plurality of flow tubes (15) are distributed in an annular manner inside the heating tube (2), and an outer shell (16) is provided on the outer side of the flow tube (15). One end of the heating tube (2) is connected to the delivery end of the steam generator, and the other end of the heating tube (2) is connected to the return pipe of the steam generator.

5. The environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool according to claim 4, characterized in that: The two ends of the heating tube (2) are symmetrically fixedly connected with connecting tubes (17), a plurality of mounting holes are provided inside the connecting tube (17), bolts are provided inside the mounting holes, and nuts are threadedly connected at both ends of the bolts.

6. The environmentally friendly hot-dip galvanizing waste hydrochloric acid treatment pool according to claim 1, characterized in that: A top cover (18) is provided on the top of the treatment pool (1), the top of the top cover (18) is connected to a vent pipe (19), and the top of the vent pipe (19) is detachably connected to an elbow pipe via bolts.

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