Waste hydrochloric acid resourceful treatment system and integrated process of waste hydrochloric acid resourceful treatment system in water purifying agent production

Abstract

The invention relates to the technical field of waste acid treatment, and particularly discloses a waste hydrochloric acid resourceful treatment system and an integrated process thereof in water purifying agent production.The waste hydrochloric acid resourceful treatment system comprises a reaction kettle, a supporting pipe is fixedly connected to the outer surface of the upper end of the reaction kettle, and a motor is fixedly connected to the outer surface of the upper end of the supporting pipe; a driving rod is fixedly connected to the lower end of an output shaft of the motor, a screening assembly is arranged on the outer surface of the driving rod and comprises an ejector rod fixedly connected with the outer surface of the driving rod, the screening assembly and the ejector rod are matched with a check ring to drive a screen to slide left and right in a reciprocating mode, and aluminum ash in the screen is screened; according to the waste hydrochloric acid treatment device, the screen can drive aluminum ash to be in collision contact with the baffle in the moving process, so that the caked aluminum ash can be collided and crushed, the volume of the aluminum ash can be effectively reduced, meanwhile, the uniformity of aluminum ash particles can be effectively improved, the aluminum ash can be in full contact with waste hydrochloric acid, and the waste hydrochloric acid treatment efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste acid treatment, in particular to a waste hydrochloric acid resource treatment system and an integrated process thereof in the production of a water purifier. Background Art

[0002] Waste hydrochloric acid is a common industrial hazardous waste that contains a large amount of acidic substances and metal ions. If improperly handled, it will cause serious pollution to the environment. The resource treatment of waste hydrochloric acid is an important direction for achieving industrial waste reduction, harmlessness and resource recycling. It mainly improves resource utilization efficiency through multi-waste synergy, graded reaction and advanced equipment integration.

[0003] For example, Chinese patent publication number CN112794353B discloses a method and apparatus for preparing polyaluminium chloride by recycling aluminium ash slag. The apparatus uses aluminium ash slag and waste hydrochloric acid as the main raw materials and an improved acid dissolution method as the main production method, thereby achieving the preparation of polyaluminium chloride and enabling rapid automatic screening of secondary aluminium ash. The apparatus complies with national standards, has a reasonable preparation method and achieves the goals of environmental protection and energy conservation. When the waste hydrochloric acid resource treatment system in the existing technology is working, polyaluminum chloride is generated through the polymerization reaction of waste hydrochloric acid and aluminum ash, thereby realizing the resource utilization of waste hydrochloric acid. However, in the actual working process, the aluminum ash will clump due to moisture during storage and transportation. When the agglomerated aluminum ash is mixed with the waste hydrochloric acid, it will not only affect the mixing uniformity of the aluminum ash and the waste hydrochloric acid, but also have an adverse effect on the reaction rate of the waste hydrochloric acid and the aluminum ash. Summary of the Invention

[0004] The purpose of the present invention is to provide a waste hydrochloric acid resource treatment system and its integrated process in the production of water purifiers, which can collide and break up agglomerated aluminum ash, thereby effectively reducing the volume of the aluminum ash, and at the same time effectively improving the uniformity of the aluminum ash particles, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a waste hydrochloric acid resource processing system, comprising a reactor, wherein the outer surface of the upper end of the reactor is fixedly connected to a support tube, the outer surface of the upper end of the support tube is fixedly connected to a motor, the lower end of the motor output shaft is fixedly connected to a drive rod, the outer surface of the drive rod is provided with a screening assembly, the screening assembly includes a top rod fixedly connected to the outer surface of the drive rod, the inner surface of the reactor is fixedly connected to a support plate, the upper side of the support plate is provided with a grinding assembly, the outer surface of the upper end of the support plate is movably connected to a screen through the grinding assembly, the outer surface of the lower end of the screen is fixedly connected to a retaining ring, the top rod is located on the inner side of the retaining ring and is in sliding contact with the inner surface of the retaining ring, and the retaining ring has an elliptical structure.

[0006] Preferably, the screen and the support plate are in a circular shape, a collecting plate is fixedly connected to the upper side of the inner surface of the reactor, the collecting plate is distributed in a circular shape, a feed pipe is fixedly connected to the outer surface of the upper end of the reactor, the collecting plate is located on the upper side of the screen, the upper end of the screen is open, the lower end of the baffle is located in the screen, and the outer surface of the lower end of the collecting plate is fixedly connected to the baffle part.

[0007] Preferably, the grinding assembly includes a mounting seat fixedly connected to the outer surface of the lower end of the screen, and a ball is embedded and rotatably connected inside the mounting seat. The number of the balls is several groups and distributed in a ring array. The lower side of the outer surface of the ball is in rolling contact with the upper surface of the support plate, and the inner surface of the mounting seat is fixedly connected to a scraper bar, and the scraper bar is in sliding contact with the upper surface of the support plate. The scraper bar is in a circular shape, and the outer surface of the lower end of the screen is fixedly connected to a grinding block, and the grinding blocks are distributed in a circular shape on the inner side of the mounting seat.

[0008] Preferably, a fixed tube is fixedly connected to the middle part of the outer surface of the upper end of the screen, the fixed tube is sleeved on the outside of the driving rod, a knocking assembly is provided on the inside of the fixed tube, the knocking assembly includes a traction rope fixedly connected to the outer surface of the driving rod, the traction rope is fixedly connected to a pendulum ball at one end away from the driving rod, and the pendulum ball collides and contacts with the inner surface of the fixed tube.

[0009] Preferably, a separation assembly is provided on the inner side of the reactor, and the separation assembly includes a sealing plate fixedly connected to the inner surface of the reactor, a tee pipe is fixedly connected to the outer surface of the reactor, and the upper and lower ends of the tee pipe are respectively located on the upper and lower sides of the sealing plate, a filter plate is fixedly connected to the inner surface of the reactor, and a guide rod is fixedly connected to the outer surface of the upper end of the filter plate.

[0010] Preferably, the outer surface of the driving rod is spirally connected to a movable seat, and the outer surface of the movable seat is fixedly connected to a connecting rod. The number of the connecting rods is several groups and distributed in a ring array. The guide rod passes through the upper and lower ends of the movable seat and is slidably connected to the movable seat. An extrusion plate is placed on the outer surface of the upper end of the connecting rod. The extrusion plate is in sliding contact with the inner surface of the reactor, and a mesh is opened through the outer surface of the extrusion plate.

[0011] Preferably, a stirring assembly is provided on the inner side of the reactor, and the stirring assembly includes a capsule fixedly connected to the inner surface of the reactor, the capsule is fixedly connected to the screen on the side away from the reactor, the capsule is arc-shaped, and the outer surface of the capsule is fixedly connected to the air inlet pipe, and the air inlet pipe extends to the outside of the reactor.

[0012] Preferably, an air outlet pipe is embedded and fixedly connected inside the reactor, a conduit is embedded inside the screen, one end of the air outlet pipe is connected to the conduit and the other end is connected to the inner surface of the capsule, and air outlet holes are provided on the outer surface of the upper end of the filter plate, and the air outlet holes are connected to the inside of the conduit. The number of the air outlet holes is several groups and distributed in a parallel array, and a one-way valve is provided inside the air inlet pipe and the air outlet pipe.

[0013] Preferably, a feed pipe is fixedly connected to the outer surface of the upper end of the reactor, and the lower end of the feed pipe passes through the lower side of the support plate. A scraper is fixedly connected to the lower side of the outer surface of the drive rod. The scrapers are divided into several groups and distributed in a ring array. The outer surface of the lower end of the scraper is in sliding contact with the lower end of the inner surface of the reactor, and a discharge pipe is fixedly connected to the lower side of the outer surface of the reactor.

[0014] An integrated production process for a water purifier using a waste hydrochloric acid resource treatment system comprises the following steps: S1: Add industrial hydrochloric acid to the waste hydrochloric acid to adjust the hydrogen ion concentration in the solution to 2-4g / L; S2: After washing the aluminum ash, inject it into waste hydrochloric acid at a liquid-to-solid ratio of 10-20 ml / g and react at 60-90°C for 1-3 hours; S3: filtering and separating the reaction product of the aluminum ash and the acidic solution, and retaining the aluminum-containing solution therein; S4: adding an alkaline regulator in batches to adjust the pH to 3-5, so that the alkaline regulator and the aluminum solution undergo a polymerization reaction; S5: Aging for a period of time at 50-70° C. for drying to complete the preparation of polyaluminum chloride.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This solution sets a screening assembly. The top rod cooperates with the retaining ring to drive the screen to slide back and forth, thereby screening the aluminum ash inside the screen. During the movement of the screen, the aluminum ash is driven to collide with the baffle, thereby breaking up the agglomerated aluminum ash, thereby effectively reducing the volume of the aluminum ash and effectively improving the uniformity of the aluminum ash particles, so that the aluminum ash can fully contact with the waste hydrochloric acid, which helps to improve the waste hydrochloric acid treatment efficiency. 2. This solution provides a grinding assembly. The ball bearings can effectively reduce the resistance of the screen during reciprocating sliding, while also making the screen move more smoothly. The screen will drive the grinding block to move synchronously during movement. The grinding block cooperates with the support plate to grind the aluminum ash on the surface of the support plate, thereby further reducing the volume of the aluminum ash and effectively improving the mixing uniformity of the waste hydrochloric acid and aluminum ash. 3. This solution sets a stirring component. When the screen cooperates with the reactor to squeeze the capsule, the gas is ejected upward through the air outlet holes on the surface of the filter plate. The ejected gas can mix and stir the waste hydrochloric acid and aluminum ash, thereby further improving the mixing uniformity of the aluminum ash and the waste hydrochloric acid, and then effectively improving the reaction efficiency of the aluminum ash and the waste hydrochloric acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a top view of the overall structure of the present invention; Figure 3 It is the internal structure diagram of the reactor of the present invention; Figure 4 For the present invention Figure 2 Middle AA section view; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 For the present invention Figure 4 Enlarged schematic diagram at point C in the middle; Figure 7 For the present invention Figure 4 The enlarged schematic diagram of point D in the middle; Figure 8 For the present invention Figure 4 Enlarged schematic diagram at point E in the middle.

[0018] Description of reference numerals: 11. Reactor; 12. Support tube; 13. Motor; 14. Feed pipe; 15. Feed pipe; 16. Tee; 17. Discharge pipe; 18. Drive rod; 19. Collecting plate; 20. Screen; 21. Support plate; 22. Sealing plate; 23. Scraper; 24. Extrusion plate; 25. Filter plate; 26. Fixed tube; 27. Tow rope; 28. Swing ball; 29. ​​Retaining ring; 30. Ejector rod; 31. Guide rod; 32. Grinding block; 33. Mounting seat; 34. Ball; 35. Scraper; 36. Capsule; 37. Inlet pipe; 38. Outlet pipe; 39. Conduit; 40. Outlet hole; 41. Movable seat; 42. Connecting rod; 43. Mesh; 44. Baffle. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 8 , the present invention provides a technical solution: A waste hydrochloric acid resource processing system includes a reactor 11, wherein the outer surface of the upper end of the reactor 11 is fixedly connected to a support tube 12, the outer surface of the upper end of the support tube 12 is fixedly connected to a motor 13, the lower end of the output shaft of the motor 13 is fixedly connected to a drive rod 18, the outer surface of the drive rod 18 is provided with a screening assembly, the screening assembly includes a push rod 30 fixedly connected to the outer surface of the drive rod 18, the inner surface of the reactor 11 is fixedly connected to a support plate 21, a grinding assembly is provided on the upper side of the support plate 21, the outer surface of the upper end of the support plate 21 is movably connected to a screen 20 through the grinding assembly, the outer surface of the lower end of the screen 20 is fixedly connected to a retaining ring 29, the push rod 30 is located inside the retaining ring 29 and is in sliding contact with the inner surface of the retaining ring 29, and the retaining ring 29 has an elliptical structure.

[0021] The screen 20 and the support plate 21 are in a circular shape. The upper side of the inner surface of the reactor 11 is fixedly connected to a collecting plate 19, which is distributed in a circular shape. The outer surface of the upper end of the reactor 11 is fixedly connected to the feed pipe 15. The collecting plate 19 is located on the upper side of the screen 20. The upper end of the screen 20 is open. The lower end of the baffle 44 is located inside the screen 20, and the outer surface of the lower end of the collecting plate 19 is fixedly connected to the baffle 44.

[0022] A feed pipe 14 is fixedly connected to the outer surface of the upper end of the reactor 11, and the lower end of the feed pipe 14 passes through the lower side of the support plate 21. A discharge pipe is fixedly connected to the left side of the outer surface of the reactor 11, and a scraper 23 is fixedly connected to the lower side of the outer surface of the drive rod 18. The scrapers 23 are divided into several groups and distributed in a ring array. The outer surface of the lower end of the scraper 23 is in sliding contact with the lower end of the inner surface of the reactor 11.

[0023] By adopting the above technical solution, waste hydrochloric acid can be used to prepare water purifiers to achieve resource utilization, wherein the reactor 11 is one of the core equipment of the waste hydrochloric acid resource treatment system. During operation, the waste hydrochloric acid is first injected into the reactor 11 through the feed pipe 14, and the sealing plate 22 divides the internal space of the reactor 11 into two parts. The reactor 11 fixes the motor 13 through the support tube 12, and the waste hydrochloric acid is stored on the upper side of the sealing plate 22. Industrial hydrochloric acid is added to the waste hydrochloric acid to adjust the hydrogen ion concentration in the waste hydrochloric acid to 2-4g / L, and then aluminum ash is injected into the reactor 11 through the feed pipe 15. The aluminum ash slides along the inside of the feed pipe 15 to the surface of the collecting plate 19, and then is collected into the inside of the screen 20 under the guidance of the collecting plate 19. The reactor 11 supports the screen 20 through the support plate 21, so that the screen 20 can be moved along the surface of the support plate 21. The screen 20 is moved by the output shaft of the motor 13, and the driving rod 18 is used to drive the push rod 30 to make a circular motion. The driving rod 18 will slide in contact with the inner wall of the retaining ring 29 on the lower side of the screen 20 during the movement. The retaining ring 29 is an elliptical structure. The push rod 30 cooperates with the retaining ring 29 to drive the screen 20 to slide back and forth, thereby screening the aluminum ash inside the screen 20. The aluminum ash with smaller particle size will pass through the screen 20 and fall into the waste hydrochloric acid, while the large particles of aluminum ash that have agglomerated will remain on the upper surface of the screen 20. The screen 20 will drive the aluminum ash to collide with the baffle 44 during the movement, thereby breaking the agglomerated aluminum ash, thereby effectively reducing the volume of the aluminum ash and effectively improving the uniformity of the aluminum ash particles, so that the aluminum ash can fully contact with the waste hydrochloric acid, which helps to improve the waste hydrochloric acid treatment efficiency.

[0024] Specifically, such as Figure 4 and Figure 6 As shown, the grinding assembly includes a mounting seat 33 fixedly connected to the outer surface of the lower end of the screen 20, and a ball 34 is embedded and rotatably connected inside the mounting seat 33. The number of balls 34 is several groups and distributed in a ring array. The lower side of the outer surface of the ball 34 is in rolling contact with the upper surface of the support plate 21.

[0025] A scraper strip 35 is fixedly connected to the inner surface of the mounting seat 33 , and the scraper strip 35 is in sliding contact with the upper surface of the support plate 21 . The scraper strip 35 is annular. A grinding block 32 is fixedly connected to the outer surface of the lower end of the screen 20 , and the grinding block 32 is distributed in an annular shape on the inner side of the mounting seat 33 .

[0026] By adopting the above technical solution, the screen 20 rotatably supports the ball 34 through the mounting seat 33, and the lower surface of the ball 34 contacts the support plate 21, so that the sliding friction between the screen 20 and the support plate 21 can be converted into a rolling friction between the ball 34 and the support plate 21, thereby effectively reducing the resistance of the screen 20 during the reciprocating sliding process, and at the same time, it can also make the screen 20 move more smoothly. During the movement, the screen 20 will drive the grinding block 32 to move synchronously, and the grinding block 32 can cooperate with the support plate 21 to grind the aluminum ash on the surface of the support plate 21, thereby further reducing the volume of the aluminum ash, and then effectively improving the mixing uniformity of the waste hydrochloric acid and the aluminum ash.

[0027] Specifically, such as Figure 4 and Figure 5 As shown, a fixed tube 26 is fixedly connected to the middle of the outer surface of the upper end of the screen 20, and the fixed tube 26 is sleeved on the outside of the driving rod 18. A knocking assembly is provided on the inside of the fixed tube 26, and the knocking assembly includes a traction rope 27 fixedly connected to the outer surface of the driving rod 18. The traction rope 27 is fixedly connected to the end away from the driving rod 18 with a pendulum ball 28, and the pendulum ball 28 collides and contacts with the inner surface of the fixed tube 26.

[0028] By adopting the above technical solution, the fixed tube 26 on the upper side of the screen 20 can play a certain role in blocking the aluminum ash inside the screen 20. During the rotation of the driving rod 18, the traction rope 27 drives the swing ball 28 to move synchronously. Under the action of centrifugal force, the swing ball 28 moves to the side away from the driving rod 18, and then the swing ball 28 collides with the inner wall of the fixed tube 26. The swing ball 28 knocks the fixed tube 26, which can effectively reduce the probability of the screen 20 being blocked by aluminum ash. It can not only ensure the filtering effect of the screen 20, but also effectively extend the working time of the screen 20 and reduce the difficulty of cleaning the screen 20 to a certain extent.

[0029] Specifically, such as Figure 4 and Figure 8 As shown, a separation assembly is provided on the inner side of the reactor 11, and the separation assembly includes a sealing plate 22 fixedly connected to the inner surface of the reactor 11, a tee pipe 16 is fixedly connected to the outer surface of the reactor 11, and the upper and lower ends of the tee pipe 16 are respectively located on the upper and lower sides of the sealing plate 22, a filter plate 25 is fixedly connected to the inner surface of the reactor 11, and a guide rod 31 is fixedly connected to the outer surface of the upper end of the filter plate 25.

[0030] The outer surface of the driving rod 18 is spirally connected to the movable seat 41, and the outer surface of the movable seat 41 is fixedly connected to the connecting rod 42. The number of the connecting rods 42 is several groups and distributed in a ring array. The guide rod 31 passes through the upper and lower ends of the movable seat 41 and is slidably connected to the movable seat 41. The outer surface of the upper end of the connecting rod 42 is placed with an extrusion plate 24. The extrusion plate 24 is in sliding contact with the inner surface of the reactor 11, and a mesh 43 is opened on the outer surface of the extrusion plate 24.

[0031] By adopting the above technical solution, after the waste hydrochloric acid is mixed with aluminum ash to form an aluminum solution, an appropriate amount of alkaline regulator is injected into the reactor 11 in batches through the feed pipe 14, so that polyaluminum chloride is formed between the alkaline regulator and the aluminum solution, thereby completing the preparation and processing of the water purifier. The movable seat 41 is connected to the driving rod 18 through a spiral transmission. As the driving rod 18 rotates, the movable seat 41 is driven to move along the axis of the driving rod 18. The guide rod 31 passes through the upper and lower ends of the movable seat 41 and can play a role in limiting the movement of the movable seat 41. During the movement, the movable seat 41 will drive the connecting rod 42 to move synchronously, and the extrusion plate 24 is driven by the connecting rod 42 to slide along the inner wall of the reactor 11. The connecting rod 42 and During the movement, the extrusion plate 24 will stir the aluminum liquid inside the reactor 11, so that the aluminum solution and the alkaline regulator can be fully mixed and contacted, thereby further improving the polymerization reaction efficiency of the aluminum solution. The polymerization reaction product is aged on the upper side of the extrusion plate 24 for a period of time, and then the control valve inside the tee 16 is controlled to make the remaining solution on the upper side of the extrusion plate 24 filtered through the filter plate 25 and then flow into the inside of the tee 16, and then the remaining solution is diverted to the lower side of the sealing plate 22 through the tee 16, and the solid water purifier formed by the polymerization will be retained on the upper side of the filter plate 25. The driving rod 18 drives the scraper 23 to perform a circular motion and cooperates with the discharge pipe to accelerate the discharge of the residual reaction products inside the reactor 11.

[0032] Specifically, such as Figure 4 and Figure 7 As shown, a stirring assembly is provided on the inner side of the reactor 11, and the stirring assembly includes a capsule 36 fixedly connected to the inner surface of the reactor 11, and the capsule 36 is fixedly connected to the screen 20 on the side away from the reactor 11. The capsule 36 is arc-shaped, and an air inlet pipe 37 is fixedly connected to the outer surface of the capsule 36, and the air inlet pipe 37 passes through the outside of the reactor 11.

[0033] An outlet pipe 38 is embedded and fixedly connected to the inside of the reactor 11, and a conduit 39 is embedded inside the screen 20. One end of the outlet pipe 38 is connected to the conduit 39 and the other end is connected to the inner surface of the capsule 36. An outlet hole 40 is opened on the outer surface of the upper end of the filter plate 25. The outlet holes 40 are connected to the inside of the conduit 39. The number of the outlet holes 40 is several groups and is distributed in a parallel array. A one-way valve is provided inside the air inlet pipe 37 and the air outlet pipe 38. A discharge pipe 17 is fixedly connected to the lower side of the outer surface of the reactor 11.

[0034] By adopting the above technical solution, the screen 20 can stretch and squeeze the capsule 36 during the reciprocating motion. When the screen 20 cooperates with the reactor 11 to squeeze the capsule 36, the gas inside the capsule 36 enters the conduit 39 through the outlet pipe 38, and then is ejected upward through the outlet hole 40 on the surface of the filter plate 25. The ejected gas can mix and stir the waste hydrochloric acid and the aluminum ash, thereby further improving the mixing uniformity of the aluminum ash and the waste hydrochloric acid, and thus effectively improving the reaction efficiency of the aluminum ash and the waste hydrochloric acid. When the capsule 36 is stretched, the gas enters the capsule 36 through the inlet pipe 37, so that the capsule 36 completes the expansion and reset. A one-way valve is provided inside the inlet pipe 37 and the outlet pipe 38 to ensure the one-way flow of gas.

[0035] An integrated production process for a water purifier using a waste hydrochloric acid resource treatment system comprises the following steps: S1: Add industrial hydrochloric acid to waste hydrochloric acid to adjust the hydrogen ion concentration in the solution to 2-4g / L; S2: After washing the aluminum ash, inject it into waste hydrochloric acid at a liquid-to-solid ratio of 10-20 ml / g and react at 60-90°C for 1-3 hours; S3: filtering and separating the reaction product of the aluminum ash and the acidic solution, and retaining the aluminum-containing solution therein; S4: adding an alkaline regulator in batches to adjust the pH to 3-5, so that the alkaline regulator and the aluminum solution undergo a polymerization reaction; S5: Aging for a period of time at 50-70° C. for drying to complete the preparation of polyaluminum chloride.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste hydrochloric acid resource treatment system, comprising a reactor (11), characterized in that: The outer surface of the upper end of the reactor (11) is fixedly connected to a support tube (1.2), the outer surface of the upper end of the support tube (12) is fixedly connected to a motor (13), the lower end of the output shaft of the motor (13) is fixedly connected to a drive rod (18), the outer surface of the drive rod (18) is provided with a screening assembly, and the screening assembly includes a top rod (30) fixedly connected to the outer surface of the drive rod (18), the inner surface of the reactor (11) is fixedly connected to a support plate (21), the upper side of the support plate (21) is provided with a grinding assembly, the outer surface of the upper end of the support plate (21) is movably connected to a screen (20) through the grinding assembly, the outer surface of the lower end of the screen (20) is fixedly connected to a retaining ring (29), the top rod (30) is located inside the retaining ring (29) and is in sliding contact with the inner surface of the retaining ring (29), and the retaining ring (29) has an elliptical structure.

2. A waste hydrochloric acid resource treatment system according to claim 1, characterized in that: The screen (20) and the support plate (21) are in an annular shape. A collecting plate (19) is fixedly connected to the upper side of the inner surface of the reactor (11). The collecting plate (19) is distributed in an annular shape. A feed pipe (15) is fixedly connected to the outer surface of the upper end of the reactor (11). The collecting plate (19) is located on the upper side of the screen (20). The upper end of the screen (20) is open. The lower end of the baffle (44) is located inside the screen (20). The outer surface of the lower end of the collecting plate (19) is fixedly connected to the baffle (44).

3. A waste hydrochloric acid resource treatment system according to claim 2, characterized in that: The grinding assembly includes a mounting seat (33) fixedly connected to the outer surface of the lower end of the screen (20), and a ball (34) is embedded and rotatably connected inside the mounting seat (33). The number of the ball (34) is several groups and is distributed in a ring array. The lower side of the outer surface of the ball (34) is in rolling contact with the upper surface of the support plate (21). The inner surface of the mounting seat (33) is fixedly connected to a scraper (35), and the scraper (35) is in sliding contact with the upper surface of the support plate (21). The scraper (35) is in an annular shape. The outer surface of the lower end of the screen (20) is fixedly connected to a grinding block (32), and the grinding block (32) is distributed in an annular shape inside the mounting seat (33).

4. A waste hydrochloric acid resource treatment system according to claim 3, characterized in that: A fixed tube (26) is fixedly connected to the middle of the outer surface of the upper end of the screen (20), and the fixed tube (26) is sleeved on the outside of the driving rod (18). A knocking assembly is provided on the inside of the fixed tube (26), and the knocking assembly includes a traction rope (27) fixedly connected to the outer surface of the driving rod (18). The end of the traction rope (27) away from the driving rod (18) is fixedly connected to a swing ball (28), and the swing ball (28) collides with the inner surface of the fixed tube (26).

5. A waste hydrochloric acid resource treatment system according to claim 4, characterized in that: A separation assembly is provided on the inner side of the reactor (11), the separation assembly comprising a sealing plate (22) fixedly connected to the inner surface of the reactor (11); a three-way pipe (16) is fixedly connected to the outer surface of the reactor (11); the upper and lower ends of the three-way pipe (16) are respectively located on the upper and lower sides of the sealing plate (22); a filter plate (25) is fixedly connected to the inner surface of the reactor (11); and a guide rod (31) is fixedly connected to the outer surface of the upper end of the filter plate (25).

6. A waste hydrochloric acid resource treatment system according to claim 5, characterized in that: The outer surface of the driving rod (18) is connected to a movable seat (41) by a spiral transmission, and the outer surface of the movable seat (41) is fixedly connected to a connecting rod (42), and the number of the connecting rods (42) is several groups and distributed in a ring array. The guide rod (31) passes through the upper and lower ends of the movable seat (41) and is slidably connected to the movable seat (41). An extrusion plate (24) is placed on the outer surface of the upper end of the connecting rod (42), and the extrusion plate (24) is in sliding contact with the inner surface of the reactor (11). The outer surface of the extrusion plate (24) is penetrated by a mesh hole (43).

7. A waste hydrochloric acid resource treatment system according to claim 6, characterized in that: A stirring assembly is provided on the inner side of the reactor (11), and the stirring assembly includes a capsule (36) fixedly connected to the inner surface of the reactor (11), and the side of the capsule (36) away from the reactor (11) is fixedly connected to the screen (20), and the capsule (36) is in an arc shape. The outer surface of the capsule (36) is fixedly connected to an air inlet pipe (37), and the air inlet pipe (37) passes through the outside of the reactor (11).

8. The waste hydrochloric acid resource treatment system according to claim 7, characterized in that: An outlet pipe (38) is embedded and fixedly connected to the inner side of the reactor (11), and a conduit (39) is embedded and provided on the inner side of the screen (20). One end of the outlet pipe (38) is connected to the conduit (39) and the other end is connected to the inner surface of the capsule (36). An outlet hole (40) is provided on the outer surface of the upper end of the filter plate (25). The outlet holes (40) are connected to the inside of the conduit (39). The outlet holes (40) are in a plurality of groups and are distributed in a parallel array. One-way valves are provided inside the air inlet pipe (37) and the air outlet pipe (38).

9. The waste hydrochloric acid resource treatment system according to claim 8, characterized in that: The outer surface of the upper end of the reactor (11) is fixedly connected to a feed pipe (14), and the lower end of the feed pipe (14) extends through the lower side of the support plate (21). The lower side of the outer surface of the driving rod (18) is fixedly connected to a scraper (23). The scrapers (23) are arranged in a plurality of groups and are distributed in a ring-shaped array. The outer surface of the lower end of the scraper (23) is in sliding contact with the lower end of the inner surface of the reactor (11). The lower side of the outer surface of the reactor (11) is fixedly connected to a discharge pipe (17).

10. The integrated production process for water purifiers using a waste hydrochloric acid resource treatment system according to claim 9, characterized in that: The steps include: S1: Add industrial hydrochloric acid to the waste hydrochloric acid to adjust the hydrogen ion concentration in the solution to 2-4g / L; S2: After washing the aluminum ash, inject it into waste hydrochloric acid at a liquid-to-solid ratio of 10-20 ml / g and react at 60-90°C for 1-3 hours; S3: filtering and separating the reaction product of the aluminum ash and the acidic solution, and retaining the aluminum-containing solution therein; S4: adding an alkaline regulator in batches to adjust the pH to 3-5, so that the alkaline regulator and the aluminum solution undergo a polymerization reaction; S5: Aging for a period of time at 50-70° C. for drying to complete the preparation of polyaluminum chloride.

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