Pickling residue filtering device

Abstract

The utility model relates to a pickling residue filtering device which comprises a gravity separation tower, a filtering bag and a recycling pool, the gravity separation tower is arranged in the recycling pool and provided with a medicament delivery pump and a drainage pump, the medicament delivery pump is communicated with the top of the gravity separation tower through a pipeline, and the drainage pump is communicated with the top of the gravity separation tower through a pipeline. A bearing table is arranged in the recovery pool, the filter bag is arranged on the bearing table and located below a valve at the bottom of the gravity separation tower, and a recovery pump is arranged on the recovery pool and communicates the recovery pool with the top of the gravity separation tower through a pipeline. According to the device disclosed by the utility model, pickling residues are settled into sludge, the sludge is filtered, chemicals in the sludge are recycled, and the cured sludge is recycled, so that the problems that the chemical utilization rate is low and the sludge is difficult to recycle are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of iron wire production technology, and more specifically, to a pickling slag filtration device. Background Technology

[0002] Iron wire is a basic metal product characterized by high strength, low cost, and ease of processing. It is widely used in various fields such as industry, agriculture, construction, and daily life. For example, it can be used for reinforcing bar binding and securing, as well as as the core material for steel wire ropes or to make chains and screens. The production process of iron wire generally includes pickling, drawing, heat treatment, surface treatment, and cooling and winding. Among these, pickling is a crucial pretreatment step, mainly used to remove oxide scale, rust, and impurities from the wire surface. The pickling process generates pickling slag, which is a waste residue containing solid particles generated during metal pickling. Its main components are metal oxides, unreacted acid, and salts, requiring treatment and recycling. Currently, the equipment for recycling pickling slag is relatively simple, with problems such as low reagent utilization and difficulty in sludge recovery. Based on this, this utility model proposes a novel pickling slag filtration device. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a pickling sludge filtration device that allows pickling sludge to settle into sludge, filters the sludge, recovers the reagents from the sludge, and recovers the solidified sludge, effectively solving the problems of low reagent utilization and difficulty in sludge recycling.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A pickling residue filtration device includes a gravity separation tower, filter bags, and a recovery tank. The gravity separation tower is located within the recovery tank and is equipped with a reagent delivery pump and a drainage pump. The reagent delivery pump is connected to the top of the gravity separation tower via a pipeline, and the drainage pump is also connected to the top of the gravity separation tower via a pipeline. A support platform is installed within the recovery tank, and the filter bags are placed on the support platform, positioned below the valve at the bottom of the gravity separation tower. A recovery pump is installed on the recovery tank, and the recovery pump connects the recovery tank to the top of the gravity separation tower via a pipeline.

[0006] In one embodiment, the recycling tank is equipped with a level sensor to detect the liquid level height within the recycling tank.

[0007] In one embodiment, the load-bearing platform is equipped with a weight sensor to detect the weight of the sludge inside the filter bag.

[0008] In one embodiment, the bottom of the gravity separation tower is provided with a funnel-shaped guide section, a bottom valve is provided at the bottom end of the guide section, the guide section is inserted into the filter bag, and hooks are provided on both sides of the guide section to connect with the loops of the filter bag.

[0009] In one embodiment, the support platform includes a lifting mechanism, a support plate, and a positioning frame. The positioning frame includes multiple fixed vertical rods and multiple side baffles. The multiple fixed vertical rods are disposed in the recycling pool, and a receiving space is formed between the multiple fixed rods. The tops of two adjacent fixed rods are connected by a side baffle. The top surfaces of the multiple side baffles are flush. The lifting mechanism is disposed in the receiving space, and the support plate is disposed on the lifting mechanism. The support plate is located in the receiving space. When the support plate is at its lower limit position, the top surface of the support plate is lower than the top surface of the side baffle. When the support plate is at its upper limit position, the bottom surface of the support plate is higher than the top surface of the side baffle. A weight sensor is disposed on the top surface of the lifting mechanism.

[0010] In one embodiment, the lifting mechanism is a jack device.

[0011] In one embodiment, the bottom surface of the load-bearing plate is provided with pulleys, and the load-bearing platform also includes a transition plate. The transition plate is inclined, the top of the transition plate is detachably connected to the side of the positioning frame, and the highest point of the transition plate is flush with the top surface of the side baffle. The bottom end of the transition plate is placed above the edge of the recycling pool.

[0012] In summary, this utility model has the following beneficial effects:

[0013] This invention enables pickling residue to settle into sludge, filters the sludge, recovers the reagents from the sludge, and recovers the solidified sludge, effectively solving the problems of low reagent utilization and difficulty in sludge recycling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] In the diagram: 1. Gravity separation tower, 2. Recovery tank, 3. Chemical transfer pump, 4. Drainage pump, 5. Recovery pump, 6. Filter bag, 7. Hook, 8. Hanging lug, 9. Fixed vertical rod, 10. Side baffle, 11. Lifting mechanism, 12. Load-bearing plate, 13. Transition plate. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It is worth noting that the directional terms such as "up" and "down" used in this article are all relative to the perspective of the attached figures and are only for the purpose of description. They should not be interpreted as limitations on the technical solutions.

[0018] This utility model proposes an acid washing residue filtration device, which realizes automatic sedimentation and filtration of sludge based on the principle of gravity separation, and achieves sludge recycling, such as... Figure 1 As shown, the pickling residue filtration device includes a gravity separation tower 1, a filter bag 6, and a recovery tank 2. The gravity separation tower 1 is located inside the recovery tank 2. The gravity separation tower 1 is equipped with a reagent delivery pump 3 and a drainage pump 4. The reagent delivery pump 3 is connected to the top of the gravity separation tower 1 through a pipeline to deliver the reagent into the gravity separation tower 1. The drainage pump 4 is connected to the top of the gravity separation tower 1 through a pipeline to discharge the supernatant after sedimentation. A support platform is set inside the recovery tank 2, and the filter bag 6 is placed on the support platform. The filter bag 6 is located below the bottom valve of the gravity separation tower 1. A recovery pump 5 is set on the recovery tank 2, and the recovery pump 5 is connected to the top of the gravity separation tower 1 through a pipeline.

[0019] In this invention, pickling residue is transported to gravity separation tower 1. A reagent transfer pump 3 delivers reagents to gravity separation tower 1, where they mix with the pickling residue, causing the sludge to settle. Finally, a clear liquid is formed at the top and a sludge layer at the bottom within gravity separation tower 1. The clear liquid is pumped to a later processing stage by a drainage pump 4. The sludge has a high water content, and unreacted reagents are also mixed in. The sludge is discharged from the bottom valve of gravity separation tower 1 and enters filter bag 6. Under gravity, the reagent solution in the sludge automatically drains from filter bag 6 and enters recovery tank 2. Once the reagent in recovery tank 2 reaches a certain level, recovery pump 5 pumps the reagent back into gravity separation tower 1 for reuse. It is easy to understand that the reagent concentration in recovery tank 2 is lower than that of fresh reagents. Before use in gravity separation tower 1, the concentration needs to be tested. This invention does not restrict the testing process. When the reagent concentration in recovery tank 2 is too low, the solution in recovery tank 2 is recovered for further processing.

[0020] Furthermore, a liquid level sensor is installed in the recycling tank 2 to detect the liquid level height inside the recycling tank 2.

[0021] Furthermore, a weight sensor is installed on the load-bearing platform to detect the weight of the sludge inside the filter bag 6.

[0022] As is easily understood, the level sensor and weight sensor work together to detect the data of the solution and solids in the sludge discharged from the gravity separation tower 1, respectively. When the weight of the filter bag 6 and the sludge measured by the weighing platform reaches the preset value, it indicates that the filter bag 6 needs to be replaced.

[0023] Furthermore, the bottom of the gravity separation tower 1 is equipped with a funnel-shaped guide section, with a bottom valve located at the bottom end of the guide section. The guide section is inserted into the filter bag 6, and hooks 7 are provided on both sides of the guide section, connecting to the hanging ears 8 of the filter bag 6. The filter bag 6 is positioned by connecting to the bottom of the gravity separation tower 1 through its own hanging ears 8. Because the guide section is inserted into the filter bag 6, all sludge enters the filter bag 6, preventing sludge splashing out. When replacing the filter bag 6, simply remove the hanging ears 8 from the hooks 7 and replace with a new filter bag 6.

[0024] It is easy to understand that, in order to prevent the solution from flowing out of the recovery tank 2 when the filter bag 6 filters the sludge, there is a certain gap between the weighing platform and the inner wall of the recovery tank 2. However, when the filter bag 6 is full, its weight is very large. Preferably, the weighing platform includes a lifting mechanism 11, a load-bearing plate 12 and a positioning frame. The positioning frame includes multiple fixed vertical rods 9 and multiple side baffles 10. The multiple fixed vertical rods 9 are set in the recovery tank 2, and the multiple fixed rods form a receiving space. The tops of two adjacent fixed rods are connected by a side baffle 10. The top surfaces of the multiple side baffles 10 are flush. The lifting mechanism 11 is set in the receiving space. The load-bearing plate 12 is set on the lifting mechanism 11. The load-bearing plate 12 is in the receiving space. When the load-bearing plate 12 is in the lower limit position, the top surface of the load-bearing plate 12 is lower than the top surface of the side baffle 10. When the load-bearing plate 12 is in the upper limit position, the bottom surface of the load-bearing plate 12 is higher than the top surface of the side baffle 10. A weight sensor is set on the top surface of the lifting mechanism 11.

[0025] The structure of the positioning frame does not affect the filtration effect of the filter bag 6, and the filtered solution flows normally into the recovery tank 2. The filter bag 6 is placed on the support plate 12, and the lifting mechanism 11 lowers the support plate 12 to the lower limit position. At this time, the support plate 12 is restricted by multiple side baffles 10, thereby achieving the positioning of the filter bag 6. When the filter bag 6 needs to be replaced, the lifting mechanism 11 raises the support plate 12 to the upper limit position. At this time, the support plate 12 is no longer restricted by the side baffles 10, and the support plate 12 and filter bag 6 are transported out of the recovery tank 2 together. Then, a new support plate 12 and filter bag 6 can be replaced on the lifting mechanism 11.

[0026] Preferably, the lifting mechanism 11 is a jack device.

[0027] Preferably, the bottom surface of the load-bearing plate 12 is equipped with pulleys, and the load-bearing platform also includes a transition plate 13. The transition plate 13 is inclined, and its top end is detachably connected to the side of the positioning frame. The highest point of the transition plate 13 is flush with the top surface of the side baffle 10, and the bottom end of the transition plate 13 is positioned above the edge of the recycling tank 2. When replacing the filter bag 6, after the lifting mechanism 11 raises the load-bearing plate 12 to its upper limit position, the pulleys on the bottom surface of the load-bearing plate 12 are no longer restricted by the side baffle 10. The transition plate 13 is then placed on the positioning frame and the edge of the recycling tank 2, and the load-bearing plate 12 is slid out of the recycling tank 2 along the transition plate 13. This allows for the replacement of the filter bag 6 even without a forklift or other unloading device. It is easy to understand that the filter bag 6 is used in conjunction with the load-bearing plate 12. After the filter bag 6 filled with sludge is replaced, the load-bearing platform with pulleys also facilitates the transfer of the filter bag 6.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pickling residue filtration device, characterized in that, The system includes a gravity separation tower (1), a filter bag (6), and a recovery tank (2). The gravity separation tower (1) is located inside the recovery tank (2). The gravity separation tower (1) is equipped with a chemical delivery pump (3) and a drainage pump (4). The chemical delivery pump (3) is connected to the top of the gravity separation tower (1) through a pipe, and the drainage pump (4) is connected to the top of the gravity separation tower (1) through a pipe. A support platform is set inside the recovery tank (2), and the filter bag (6) is set on the support platform. The filter bag (6) is located below the bottom valve of the gravity separation tower (1). A recovery pump (5) is set on the recovery tank (2), and the recovery pump (5) connects the recovery tank (2) to the top of the gravity separation tower (1) through a pipe.

2. The pickling residue filtration device as described in claim 1, characterized in that, A liquid level sensor is installed in the recycling tank (2) to detect the liquid level height in the recycling tank (2).

3. The pickling residue filtration device as described in claim 1, characterized in that, The load-bearing platform is equipped with a weight sensor to detect the weight of the sludge inside the filter bag (6).

4. The pickling residue filtration device according to any one of claims 1-3, characterized in that, The bottom of the gravity separation tower (1) is provided with a funnel-shaped guide section, and the bottom valve is located at the bottom end of the guide section. The guide section is inserted into the filter bag (6), and hooks (7) are provided on both sides of the guide section to connect with the hanging ears (8) of the filter bag (6).

5. The pickling residue filtration device as described in claim 3, characterized in that, The support platform includes a lifting mechanism (11), a support plate (12), and a positioning frame. The positioning frame includes multiple fixed vertical rods (9) and multiple side baffles (10). The multiple fixed vertical rods (9) are set in the recycling pool (2), and a receiving space is formed between the multiple fixed rods. The tops of two adjacent fixed rods are connected by a side baffle (10). The top surfaces of the multiple side baffles (10) are flush. The lifting mechanism (11) is set in the receiving space. The support plate (12) is set on the lifting mechanism (11). The support plate (12) is in the receiving space. When the support plate (12) is in the lower limit position, the top surface of the support plate (12) is lower than the top surface of the side baffle (10). When the support plate (12) is in the upper limit position, the bottom surface of the support plate (12) is higher than the top surface of the side baffle (10). A weight sensor is set on the top surface of the lifting mechanism (11).

6. The pickling residue filtration device as described in claim 5, characterized in that, The lifting mechanism (11) is a jack device.

7. The pickling residue filtration device as described in claim 5 or 6, characterized in that, The bottom surface of the load-bearing plate (12) is provided with pulleys. The load-bearing platform also includes a transition plate (13). The transition plate (13) is in an inclined state. The top of the transition plate (13) is detachably connected to the side of the positioning frame. The highest point of the transition plate (13) is flush with the top surface of the side baffle (10). The bottom end of the transition plate (13) is placed above the edge of the recycling pool (2).

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