Dilute sulfuric acid concentration and recovery device

Abstract

The utility model discloses a dilute sulphuric acid concentration and recovery device which is characterized in that the inside of a concentration barrel is divided into four concentration cavities by partition plates, jackets are wrapped outside the concentration barrel and positioned at the positions of the concentration cavities, and feed openings are formed in the bottoms of the upper three concentration cavities of the concentration barrel; feed ports are formed in the positions, located on the upper portions of the lower three concentration cavities, of the concentration barrel, the feed ports and the discharge ports are in one-to-one correspondence and are connected with each other through electric valves, and an output shaft of the speed reduction motor is connected with the assembly type stirrer. Every two concentration cavities are communicated through an electric valve, on one hand, the multiple concentration cavities are adopted for concentration at the same time, efficiency is greatly improved, extra space is not occupied, on the other hand, stepped concentration treatment can be achieved, the stepped concentration treatment can be continuously carried out without waiting, and when the concentration meets the requirement, the concentration can be discharged and recycled from the corresponding discharging port, and the cost is reduced. And the flexibility is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dilute sulfuric acid concentration and recovery, in particular to a dilute sulfuric acid concentration and recovery device. Background Art

[0002] Dilute sulfuric acid refers to an aqueous solution of sulfuric acid with a solute mass fraction of less than or equal to 70%. Since the sulfuric acid molecules in dilute sulfuric acid have been completely ionized, dilute sulfuric acid does not have the special chemical properties of concentrated sulfuric acid, such as strong oxidizing, water absorption, and dehydration (commonly known as carbonization, i.e. strong corrosiveness). However, dilute sulfuric acid can be concentrated and recycled for reuse.

[0003] The current dilute sulfuric acid concentration and recovery device generally adopts a concentration kettle, which directly discharges after high-temperature concentration is completed, and one concentration kettle can only realize the concentration and recovery of one batch of dilute sulfuric acid, with limited efficiency. Multiple batches of dilute sulfuric acid require multiple devices to process, occupying a large amount of space, and in order to achieve the desired concentration, the concentration time can only be increased. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a dilute sulfuric acid concentration and recovery device, in which four concentration chambers are arranged in a concentration cylinder, and two of the concentration chambers are interconnected through electric valves. Firstly, multiple concentration chambers are used for simultaneous concentration, which greatly improves the efficiency and does not occupy extra space. Secondly, step-by-step concentration treatment can be realized, and the step-by-step concentration treatment can be carried out continuously without waiting. When the concentration meets the requirements, it can be discharged and recovered from the corresponding discharge port, and the flexibility is greatly improved, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dilute sulfuric acid concentration and recovery device, comprising a concentration cylinder, a cylinder cover, a reduction motor, a partition, a jacket, a discharge port, an exhaust port, a feed port, an electric valve and an assembled agitator, the top of the concentration cylinder is provided with a cylinder cover, the center position of the upper surface of the cylinder cover is provided with a reduction motor through a motor seat, the upper surface of the cylinder cover is also provided with a feeding port, three partitions are provided inside the concentration cylinder, a sealing sleeve is provided at the center position of the partition, and the inside of the concentration cylinder is divided by the partition There are four concentrating chambers, the outside of the concentrating cylinder and each concentrating chamber is wrapped with a jacket, the concentrating cylinder is provided with a discharge port on one side of the bottom of each concentrating chamber, the concentrating cylinder is provided with an exhaust port on one side of the top of each concentrating chamber, the concentrating cylinder is provided with a discharge port at the bottom of the three upper concentrating chambers, the concentrating cylinder is provided with a feed port at the upper position of the three lower concentrating chambers, the feed port corresponds to the discharge port one by one and is connected to each other through an electric valve, and the output shaft of the reduction motor is connected to the assembled agitator;

[0006] The assembled agitator includes a main shaft, a stirring paddle and a sleeve. There are several main shafts and stirring paddles. A sleeve is arranged in the middle of the stirring paddle. The sleeve is fastened to the two main shafts by bolts respectively. A stirring paddle is arranged at the bottom end of each concentration chamber. The main shaft passes through the sealing sleeves of each partition. The top end of the main shaft at the top is connected to the output shaft of the reduction motor through a coupling.

[0007] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein a supporting bottom plate is provided at the bottom of the concentration cylinder.

[0008] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein the lower part of the jacket is provided with an air inlet and a condensed water outlet, and the upper part of the jacket is provided with a steam outlet.

[0009] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein screw holes are provided at both ends of the main shaft, and connecting holes are provided on the side wall of the sleeve, and the connecting holes correspond to the screw holes at the corresponding ends of the main shaft and are connected by bolts.

[0010] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein the inner diameter of the sealing sleeve is consistent with the outer diameter of the main shaft.

[0011] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein the concentrating cylinder is provided with a thermometer port and a pressure gauge port at the upper part of each concentrating chamber.

[0012] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein the concentration cylinder is provided with a manhole at each concentration chamber.

[0013] Preferably, the utility model provides a dilute sulfuric acid concentration and recovery device, wherein a plurality of support connecting plates are evenly arranged on the outer surface of the jacket.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] There are four concentration chambers in a concentration cylinder, and the two concentration chambers are interconnected through electric valves. First, multiple concentration chambers are used for simultaneous concentration, which greatly improves the efficiency and does not occupy extra space. Second, step-by-step concentration treatment can be achieved, and the step-by-step concentration treatment can be carried out continuously without waiting. When the concentration meets the requirements, it can be discharged from the corresponding discharge port for recovery, which greatly improves flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the partial structure of the assembled agitator.

[0019] In the figure: concentration cylinder 1, cylinder cover 2, reduction motor 3, partition 4, jacket 5, discharge port 6, exhaust port 7, feed port 8, feed port 9, electric valve 10, assembled agitator 11, motor base 12, feed port 13, sealing sleeve 14, concentration chamber 15, supporting bottom plate 16, air inlet 17, condensate discharge port 18, steam discharge port 19, thermometer port 20, pressure gauge port 21, manhole 22, main shaft 1101, stirring paddle 1102, sleeve 1103, screw hole 1104, connecting hole 1105. DETAILED DESCRIPTION

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

[0021] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] See also Figure 1-2The utility model provides a technical solution: a dilute sulfuric acid concentration and recovery device, including a concentration cylinder 1, a cylinder cover 2, a reduction motor 3, a partition 4, a jacket 5, a discharge port 6, an exhaust port 7, a feed port 8, a feed port 9, an electric valve 10 and an assembled agitator 11. The top of the concentration cylinder 1 is provided with a cylinder cover 2, the center position of the upper surface of the cylinder cover 2 is provided with a reduction motor 3 through a motor seat 12, and the upper surface of the cylinder cover 2 is also provided with a feeding port 13. Three partitions 4 are arranged inside the concentration cylinder 1, and the center position of the partition 4 is provided with a A sealing sleeve 14 is arranged, and the interior of the concentrating cylinder 1 is divided into four concentrating chambers 15 by a partition 4. The outside of the concentrating cylinder 1 and each concentrating chamber 15 are wrapped with a jacket 5, and the lower part of the jacket 5 is provided with an air inlet 17 and a condensed water outlet 18, and the upper part of the jacket 5 is provided with a steam outlet 19. The high temperature is entered and discharged through the air inlet 17 and the steam outlet 19, and the condensed water in the jacket 5 is discharged through the condensed water outlet 18. The concentrating cylinder 1 is located at the bottom of each concentrating chamber 15. A discharge port 6 is provided on one side, an exhaust port 7 is provided on one side of the top of each concentration chamber 15 of the concentration cylinder 1, a discharge port 8 is provided at the bottom of the three upper concentration chambers 15 of the concentration cylinder 1, and a feed port 9 is provided at the upper position of the three lower concentration chambers 15 of the concentration cylinder 1, the feed port 9 corresponds to the discharge port 8 one by one and is connected to each other through an electric valve 10, the output shaft of the reduction motor 3 is connected to the assembled agitator 11, and a support bottom plate 16 is provided at the bottom of the concentration cylinder 1, through the support bottom plate 1 6 realizes overall support and fixation. The concentrating cylinder 1 is provided with a thermometer port 20 and a pressure gauge port 21 at the upper part of each concentrating chamber 15 to realize the installation of the thermometer and the pressure gauge. The concentrating cylinder 1 is also provided with a manhole 22 at each concentrating chamber 15, through which personnel can enter to realize the disassembly of the stirring paddle 1102, thereby realizing the disassembly of the assembled agitator 11. The outer surface of the jacket 5 is evenly provided with a plurality of bracket connecting plates 23 to realize the connection with the external reinforcement frame to ensure the overall stability;

[0023] like Figure 3As shown, the assembled agitator 11 includes a main shaft 1101, a stirring paddle 1102 and a sleeve 1103. The main shaft 1101 and the stirring paddle 1102 are both provided with a plurality of sleeves 1103. The sleeves 1103 are respectively connected to the two main shafts 1101 by bolts. Screw holes 1104 are provided at both ends of the main shaft 1101. A connecting hole 1105 is provided on the side wall of the sleeve 1103. The connecting hole 1105 is connected to the screw hole 1104 at the end of the corresponding main shaft 1101. 4 and are connected by bolts. The connection structure facilitates the connection and disassembly of the main shaft 1101 and the sleeve 1103. A stirring paddle 1102 is provided at the bottom end of each concentration chamber 15. The main shaft 1101 passes through the sealing sleeve 14 of each partition 4. The inner diameter of the sealing sleeve 14 is consistent with the outer diameter of the main shaft 1101 to ensure that the connection between the main shaft 1101 and the sealing sleeve 14 will not leak. The top end of the main shaft 1101 at the top is connected to the output shaft of the reduction motor 3 through a coupling.

[0024] Installation method and principle of use: First, process the main body, put multiple jackets 5 on the corresponding positions of the concentration cylinder 1, then weld the jacket 5 to the concentration cylinder 1, and then weld the feed port 9, discharge port 6, feed port 8, thermometer port 20 and press port to the corresponding positions of the concentration cylinder 1. Then weld the first partition 4 to the inside of the concentration cylinder 1, and connect one end of the first main shaft 1101 to the sleeve 1103 of the first stirring paddle 1102, and then pass the second main shaft 1101 through the sealing sleeve 14 of the first partition 4 and connect it to the other end of the sleeve 1103 of the first stirring paddle 1102, and then connect the sleeve 1103 of the second stirring paddle 1102 to the other end of the second main shaft 1101, and then connect the third main shaft 1101 to the second main shaft 1101, and match the sealing sleeve 14 of the second partition 4 with the third main shaft 1101 , and at the same time weld the second partition 4 to the inside of the concentration cylinder 1, and finally connect the sleeve 1103 of the third stirring paddle 1102 to the other end of the third main shaft 1101, and connect the fourth main shaft 1101 to the sleeve 1103 of the third stirring paddle 1102, then match the sealing sleeve 14 of the third partition 4 with the fourth main shaft 1101, and at the same time weld the third partition 4 to the inside of the concentration cylinder 1, connect the sleeve 1103 of the fourth stirring paddle 1102 to the bottom of the fourth main shaft 1101, and install the supporting bottom plate to the bottom of the concentration cylinder 1 to complete the installation of the main body. Install the cylinder cover 2 on the top of the concentration cylinder 1, and connect the top of the top main shaft 1101 to the output shaft of the reduction motor 3 through a coupling, and finally connect the feed port 8 and the feed port 9 of the adjacent concentration chamber 15 through the electric valve 10 to complete the overall installation. When in use, dilute sulfuric acid enters the topmost concentrating chamber 15 of the concentrating cylinder 1 from the feed port 13. One way is that after the dilute sulfuric acid is concentrated at high temperature in the topmost concentrating chamber 15, it enters the second concentrating chamber 15 through the feed port 8 and the feed port 9 for a second concentration, and at the same time, new dilute sulfuric acid is added to the topmost concentrating chamber 15 from the feed port 13. Similarly, when the concentration of sulfuric acid in a certain concentrating chamber 15 meets the requirements, sulfuric acid is discharged from the discharge port 6 of the corresponding concentrating chamber 15; another way is to directly add dilute sulfuric acid from the feed port 13, at this time, open all the electric valves 10 to allow the dilute sulfuric acid to flow directly into the bottommost concentrating chamber 15, close the electric valves 10 below, and then fill the second to last concentrating chamber 15, and so on, until all the concentrating chambers 15 are filled with dilute sulfuric acid. At this time, the four concentrating chambers 15 are heated by the jacket 5 and simultaneously concentrated at high temperature.The utility model has a reasonable structure. Four concentration chambers 15 are arranged in a concentration cylinder 1, and the two concentration chambers 15 are interconnected through an electric valve 10. Firstly, multiple concentration chambers 15 are used for simultaneous concentration, which greatly improves the efficiency and does not occupy additional space. Secondly, step-by-step concentration processing can be realized, and the step-by-step concentration processing can be carried out continuously without waiting. When the concentration meets the requirements, it can be discharged from the corresponding discharge port 6 for recovery, and the flexibility is greatly improved.

[0025] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A dilute sulfuric acid concentration and recovery device, characterized in that: The invention comprises a concentration cylinder (1), a cylinder cover (2), a reduction motor (3), a partition (4), a jacket (5), a discharge port (6), an exhaust port (7), a feed port (8), a feed port (9), an electric valve (10) and an assembled agitator (11). The top of the concentration cylinder (1) is provided with a cylinder cover (2). The reduction motor (3) is installed at the center of the upper surface of the cylinder cover (2) through a motor seat (12). The upper surface of the cylinder cover (2) is also provided with a feeding port (13). Three partitions (4) are provided inside the concentration cylinder (1). A sealing sleeve (14) is provided at the center of the partition (4). The interior of the concentration cylinder (1) is divided into four concentration chambers (15) by the partition (4). The outside of the concentrating cylinder (1) and each concentrating chamber (15) is wrapped with a jacket (5); the concentrating cylinder (1) is provided with a discharge port (6) at one side of the bottom of each concentrating chamber (15); the concentrating cylinder (1) is provided with an exhaust port (7) at one side of the top of each concentrating chamber (15); the concentrating cylinder (1) is provided with a discharge port (8) at the bottom of the three upper concentrating chambers (15); the concentrating cylinder (1) is provided with a feed port (9) at the top of the three lower concentrating chambers (15); the feed port (9) corresponds to the discharge port (8) one by one and is connected to each other through an electric valve (10); and the output shaft of the reduction motor (3) is connected to an assembled agitator (11); The assembled agitator (11) comprises a main shaft (1101), a stirring paddle (1102) and a sleeve (1103). There are a plurality of main shafts (1101) and stirring paddles (1102). A sleeve (1103) is arranged in the middle of each stirring paddle (1102). The sleeve (1103) is respectively connected to the two main shafts (1101) by bolts. A stirring paddle (1102) is arranged at the bottom end of each concentration chamber (15). The main shaft (1101) passes through the sealing sleeve (14) of each partition (4). The top end of the main shaft (1101) at the top is connected to the output shaft of the reduction motor (3) through a coupling.

2. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: A supporting bottom plate (16) is provided at the bottom of the concentrating cylinder (1).

3. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: The lower part of the jacket (5) is provided with an air inlet (17) and a condensate outlet (18), and the upper part of the jacket (5) is provided with a steam outlet (19).

4. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: Both ends of the main shaft (1101) are provided with screw holes (1104), and the side wall of the sleeve (1103) is provided with a connecting hole (1105). The connecting hole (1105) corresponds to the screw hole (1104) at the end of the main shaft (1101) and is connected by bolts.

5. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: The inner diameter of the sealing sleeve (14) is consistent with the outer diameter of the main shaft (1101).

6. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: The concentrating cylinder (1) is provided with a thermometer port (20) and a pressure gauge port (21) at the upper part of each concentrating chamber (15).

7. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: The concentrating cylinder (1) is also provided with a manhole (22) at each concentrating chamber (15).

8. A dilute sulfuric acid concentration and recovery device according to claim 1, characterized in that: A plurality of support connecting plates (23) are evenly arranged on the outer surface of the jacket (5).

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