Wastewater treatment equipment for aluminum hydroxide flame retardant production

Through the coordinated work of the design of the rotating shell mechanism and related mechanisms, the problem of low wastewater separation efficiency in the production of aluminum hydroxide flame retardant is solved, and the processing of sludge and solid debris is achieved without stopping, and the efficiency of wastewater treatment is improved.

CN120247199AInactive Publication Date: 2025-07-04ZHONGSHUN HENGHUI (BINZHOU) NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202510574323.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2025-07-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, industrial wastewater separation and treatment efficiency is low during the production process of aluminum hydroxide flame retardant, and uninterrupted separation cannot be achieved.

Method used

A wastewater treatment equipment including a rotating housing mechanism, a sludge conveying mechanism, a terminal baffle mechanism, a debris conveying mechanism and a driving gear mechanism is designed. Through the coordinated work of these mechanisms, the separation of sludge and wastewater and the directional transport of solid debris are realized, and the separation efficiency is improved.

Benefits of technology

The sedimentation of sludge at the bottom is achieved without stopping, the efficiency of wastewater separation and treatment is improved, and the continuity and efficiency of wastewater treatment are ensured.

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Abstract

The invention discloses wastewater treatment equipment for aluminum hydroxide flame retardant production, and relates to the technical field of wastewater treatment.The wastewater treatment equipment comprises a wastewater treatment box, a water inlet is formed in the bottom of one side of the wastewater treatment box, a water outlet is formed in the side, away from the water inlet, of the wastewater treatment box, and a rotary shell blocking mechanism is arranged at the bottom of the wastewater treatment box; a sludge conveying mechanism and a tail end baffle mechanism are arranged on the rotating baffle shell mechanism, a mounting frame is arranged on the wastewater treatment box, a sundry conveying mechanism is arranged on the mounting frame, a separation shifting plate mechanism is arranged on the sundry conveying mechanism, and a driving gear mechanism is arranged on the mounting frame; according to the sewage treatment device disclosed by the invention, the rotary baffle shell mechanism is arranged, so that the separation of sludge sediments and the wastewater treatment tank can be realized, the sludge sediments deposited at the bottom can be treated without shutdown, and the sludge sediments deposited in the rotary baffle shell mechanism can be conveyed through the sludge conveying mechanism; and the tail end of the rotary baffle shell mechanism can be blocked through the tail end baffle mechanism, so that the wastewater separation treatment efficiency is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically to a wastewater treatment device for the production of aluminum hydroxide flame retardant. Background Art

[0002] Aluminum hydroxide flame retardant is an environmentally friendly and efficient inorganic flame retardant, mainly used to improve the combustion performance of materials, endowing materials with flame retardancy, self-extinguishing property and smoke elimination property. During the combustion process, aluminum hydroxide decomposes endothermically, releases water vapor, and forms a high-temperature resistant aluminum oxide protective film, thereby isolating oxygen and heat to achieve the flame retardant effect. And industrial wastewater will be generated during the industrial production of aluminum hydroxide flame retardant.

[0003] In the prior art, industrial wastewater is usually treated in a large sedimentation tank. However, in the prior art, the wastewater cannot be continuously separated and treated, so the efficiency of wastewater separation and treatment is low. Therefore, there is a large room for improvement in the prior art. Summary of the Invention

[0004] The present invention provides a wastewater treatment device for the production of aluminum hydroxide flame retardant, which solves the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wastewater treatment device for the production of aluminum hydroxide flame retardant includes a wastewater treatment tank. An inlet is provided at the bottom of one side of the wastewater treatment tank, and an outlet is provided on the side of the wastewater treatment tank far from the inlet. A rotating baffle mechanism is provided at the bottom of the wastewater treatment tank. A sludge conveying mechanism and an end baffle mechanism are provided on the rotating baffle mechanism. An installation frame is provided on the wastewater treatment tank. A sundry conveying mechanism is provided on the installation frame. A separating baffle mechanism is provided on the sundry conveying mechanism. A driving gear mechanism is provided on the installation frame. The rotating baffle mechanism is used to separate the sludge conveying mechanism from the wastewater treatment tank. The end baffle mechanism is used to block the end of the rotating baffle mechanism. The driving gear mechanism is used to drive the sundry conveying mechanism and the separating baffle mechanism. The separating baffle mechanism is used to dial sundries onto the sundry conveying mechanism. The sundry conveying mechanism is used to convey sundries in a specific direction.

[0007] As a preferred technical solution of the present invention, the rotating baffle mechanism includes a baffle sleeve rotatably connected to the wastewater treatment tank. An inlet sludge groove is provided on the baffle sleeve. The bottom of the wastewater treatment tank is convexly arranged. The bottom of the wastewater treatment tank is in contact with the outside of the baffle sleeve. A first motor is fixedly connected to the outside of the wastewater treatment tank. The output shaft of the first motor is fixedly connected to a first gear. The first gear meshes with a second gear. The second gear is fixed to the outside of the baffle sleeve.

[0008] As a preferred technical solution of the present invention, the sludge conveying mechanism includes a second motor disposed outside the baffle housing sleeve. The output shaft of the second motor is fixedly connected to the sludge conveying shaft, and the sludge conveying shaft is rotatably connected to the baffle housing sleeve. The sludge conveying shaft is fixedly connected to the first spiral auger blade.

[0009] As a preferred technical solution of the present invention, the end baffle mechanism includes a linear motor fixed to the side of the wastewater treatment tank. The end of the linear motor away from the wastewater treatment tank is fixedly connected to the end baffle, and the end baffle is rotatably connected to the baffle housing sleeve.

[0010] As a preferred technical solution of the present invention, the sundry conveying mechanism includes a conveying cylinder fixed to the mounting frame. There is an open notch above the conveying cylinder. The mounting frame is rotatably connected to the sundry conveying shaft, and the sundry conveying shaft is coaxially arranged with the conveying cylinder. The sundry conveying shaft is fixedly connected to the second spiral auger blade, and there are a plurality of first water leakage holes on the conveying cylinder.

[0011] As a preferred technical solution of the present invention, the separation baffle mechanism includes a rotating ring rotatably connected to the conveying cylinder. The rotating ring is fixedly connected to the separation plate. There are a plurality of second water leakage holes on the separation plate, and a baffle edge is fixedly connected to the edge of the separation plate.

[0012] As a preferred technical solution of the present invention, the driving gear mechanism includes a third motor fixed to the mounting frame. The output shaft of the third motor is fixedly connected to the third gear. The third gear meshes with the fourth gear. The fourth gear is coaxially fixedly connected to the first gear shaft. The first gear shaft is rotatably connected to the mounting frame, and the first gear shaft is coaxially fixedly connected to the sundry conveying shaft. The fourth gear meshes with the fifth gear. The fifth gear is coaxially fixedly connected to the second gear shaft. The second gear shaft is rotatably connected to the mounting frame. The end of the second gear shaft away from the fifth gear is fixedly connected to the sixth gear. The sixth gear meshes with the seventh gear, and the seventh gear is fixed to the outside of the rotating ring.

[0013] As a preferred technical solution of the present invention, an automatic feeding box is provided above the water inlet on the wastewater treatment tank.

[0014] The present invention has the following beneficial effects:

[0015] By providing the rotating baffle mechanism, the separation of the sludge sediment from the wastewater treatment tank can be realized, so as to realize the treatment of the bottom sediment sludge sediment without stopping the machine. Through the sludge conveying mechanism, the sludge sediment deposited in the rotating baffle mechanism can be conveyed. Through the end baffle mechanism, the end of the rotating baffle mechanism can be blocked. Through the driving gear mechanism, the sundry conveying mechanism and the separation baffle mechanism can be driven. Through the separation baffle mechanism, the solid sundries in the wastewater treatment tank can be lifted into the sundry conveying mechanism. Through the sundry conveying mechanism, the sundries can be directionally conveyed, improving the efficiency of wastewater separation treatment. 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 will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a structural schematic diagram of a wastewater treatment device for the production of aluminum hydroxide flame retardant from the first perspective.

[0018] Figure 2 It is a structural schematic diagram of a wastewater treatment device for the production of aluminum hydroxide flame retardant from the second perspective.

[0019] Figure 3 It is a structural schematic diagram of a wastewater treatment device for the production of aluminum hydroxide flame retardant from the second perspective.

[0020] Figure 4 It is a structural schematic diagram of a rotating baffle mechanism, a sludge conveying mechanism and a terminal baffle mechanism in a wastewater treatment device for the production of aluminum hydroxide flame retardant.

[0021] Figure 5 It is a structural schematic diagram of a rotating baffle mechanism, a sludge conveying mechanism and a terminal baffle mechanism in a wastewater treatment device for the production of aluminum hydroxide flame retardant from the second perspective.

[0022] In the figure: 1. Wastewater treatment tank; 2. Water inlet; 3. Water outlet; 4. Rotating baffle mechanism; 401. Baffle sleeve; 402. Sludge inlet groove; 403. First motor; 404. First gear; 405. Second gear; 5. Sludge conveying mechanism; 501. Second motor; 502. Sludge conveying shaft; 503. First spiral auger blade; 6. Terminal baffle mechanism; 601. Linear motor; 602. Terminal baffle; 7. Mounting frame; 8. Debris conveying mechanism; 801. Conveying cylinder; 802. Open notch; 803. Debris conveying shaft; 804. Second spiral auger blade; 805. First water leakage hole; 9. Separation baffle mechanism; 901. Rotating ring; 902. Separation plate; 903. Second water leakage hole; 904. Baffle edge; 10. Driving gear mechanism; 1001. Third motor; 1002. Third gear; 1003. Fourth gear; 1004. First gear shaft; 1005. Fifth gear; 1006. Second gear shaft; 1007. Sixth gear; 1008. Seventh gear. Detailed Embodiments

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0024] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] Example 1, please refer to Figures 1-5 , a wastewater treatment device for the production of aluminum hydroxide flame retardant, including a wastewater treatment tank 1. A water inlet 2 is provided at the bottom of one side of the wastewater treatment tank 1, and a water outlet 3 is provided on the side of the wastewater treatment tank 1 away from the water inlet 2. A rotating baffle mechanism 4 is provided at the bottom of the wastewater treatment tank 1. A sludge conveying mechanism 5 and a terminal baffle mechanism 6 are provided on the rotating baffle mechanism 4. An installation frame 7 is provided on the wastewater treatment tank 1. A sundry conveying mechanism 8 is provided on the installation frame 7. A separation baffle mechanism 9 is provided on the sundry conveying mechanism 8. A driving gear mechanism 10 is provided on the installation frame 7. The rotating baffle mechanism 4 is used to separate the sludge conveying mechanism 5 from the wastewater treatment tank 1. The terminal baffle mechanism 6 is used to block the end of the rotating baffle mechanism 4. The driving gear mechanism 10 is used to drive the sundry conveying mechanism 8 and the separation baffle mechanism 9. The separation baffle mechanism 9 is used to dial sundries onto the sundry conveying mechanism 8. The sundry conveying mechanism 8 is used to convey the sundries in a specific direction.

[0026] The rotating baffle mechanism 4 includes a baffle sleeve 401 rotatably connected to the wastewater treatment tank 1. A sludge inlet groove 402 is provided on the baffle sleeve 401. The bottom of the wastewater treatment tank 1 is convexly arranged. The bottom of the wastewater treatment tank 1 is in contact with the outside of the baffle sleeve 401. A first motor 403 is fixedly connected to the outside of the wastewater treatment tank 1. The output shaft of the first motor 403 is fixedly connected to a first gear 404. The first gear 404 meshes with a second gear 405. The second gear 405 is fixed to the outside of the baffle sleeve 401. The sludge conveying mechanism 5 includes a second motor 501 provided outside the baffle sleeve 401. The output shaft of the second motor 501 is fixedly connected to a sludge conveying shaft 502. The sludge conveying shaft 502 is rotatably connected to the baffle sleeve 401. The sludge conveying shaft 502 is fixedly connected to a first spiral auger blade 503.

[0027] Specifically, if it is necessary to discharge the deposited sludge sediment, the first motor 403 is turned on. The rotation of the output shaft of the first motor 403 will drive the first gear 404 to rotate. The rotation of the first gear 404 will drive the second gear 405 to rotate. The rotation of the second gear 405 will drive the baffle sleeve 401 to rotate, so that the sludge inlet groove 402 on the baffle sleeve 401 is aligned with the bottom of the wastewater treatment tank 1. At this time, the sludge sediment will also be isolated from the water in the wastewater treatment tank 1. Then the second motor 501 is turned on. The rotation of the output shaft of the second motor 501 will drive the sludge conveying shaft 502 to rotate. The rotation of the sludge conveying shaft 502 will drive the first spiral auger blade 503, and the first spiral auger blade 503 can discharge the sludge sediment in the baffle sleeve 401.

[0028] The debris conveying mechanism 8 includes a conveying cylinder 801 fixed to the mounting frame 7. An opening notch 802 is provided above the conveying cylinder 801. The mounting frame 7 is rotatably connected to a debris conveying shaft 803. The debris conveying shaft 803 and the conveying cylinder 801 are coaxially arranged. The debris conveying shaft 803 is fixedly connected to a second spiral auger blade 804. A plurality of first water leakage holes 805 are provided on the conveying cylinder 801. The separation baffle mechanism 9 includes a rotating ring 901 rotatably connected to the conveying cylinder 801. The rotating ring 901 is fixedly connected to a separation plate 902. A plurality of second water leakage holes 903 are provided on the separation plate 902. A baffle 904 is fixedly connected to the edge of the separation plate 902. The driving gear mechanism 10 includes a third motor 1001 fixed to the mounting frame 7. The output shaft of the third motor 1001 is fixedly connected to a third gear 1002. The third gear 1002 meshes with a fourth gear 1003. The fourth gear 1003 is coaxially fixedly connected to a first gear shaft 1004. The first gear shaft 1004 and the mounting frame 7 are rotatably connected. The first gear shaft 1004 and the debris conveying shaft 803 are coaxially fixedly connected. The fourth gear 1003 meshes with a fifth gear 1005. The fifth gear 1005 is coaxially fixedly connected to a second gear shaft 1006. The second gear shaft 1006 and the mounting frame 7 are rotatably connected. One end of the second gear shaft 1006 away from the fifth gear 1005 is fixedly connected to a sixth gear 1007. The sixth gear 1007 meshes with a seventh gear 1008. The seventh gear 1008 is fixed to the outside of the rotating ring 901.

[0029] Specifically, if it is necessary to separate the solid debris in the wastewater treatment tank 1, the third motor 1001 is turned on. The rotation of the output shaft of the third motor 1001 will drive the third gear 1002 to rotate. The rotation of the third gear 1002 will drive the fourth gear 1003 to rotate. The rotation of the fourth gear 1003 will drive the first gear shaft 1004 to rotate. The rotation of the fourth gear 1003 will drive the fifth gear 1005 to rotate. The rotation of the fifth gear 1005 will drive the second gear shaft 1006 to rotate. The rotation of the second gear shaft 1006 will drive the sixth gear 1007 to rotate. The rotation of the sixth gear 1007 will drive the seventh gear 1008 to rotate. The rotation of the seventh gear 1008 will drive the rotating ring 901 to rotate. The rotation of the rotating ring 901 will drive the separation plate 902 to rotate. The separation plate 902 will push the solid debris in the wastewater treatment tank 1 into the conveying cylinder 801. At the same time, the rotation of the fourth gear 1003 will drive the debris conveying shaft 803 to rotate. The rotation of the debris conveying shaft 803 will drive the second spiral auger blade 804 to rotate, so as to realize the directional conveying and discharging of the solid debris.

[0030] An automatic feeding box is provided above the water inlet 2 on the wastewater treatment tank 1.

[0031] Specifically, the automatic feeding box is used to store the wastewater treatment agent. After the agent is put into the wastewater treatment tank, the sedimentation treatment of the wastewater can be realized, thus generating sediments.

[0032] Example 2, continue to refer to Figure 4 In the embodiment of the present invention, the end baffle mechanism 6 includes a linear motor 601 fixed to the side of the wastewater treatment tank 1. One end of the linear motor 601 away from the wastewater treatment tank 1 is fixedly connected to an end baffle 602. The end baffle 602 is rotatably connected to the baffle housing sleeve 401.

[0033] Specifically, by turning on the linear motor 601, the telescopic movement of the end baffle 602 can be controlled to control the connection state between the end baffle 602 and the baffle housing sleeve 401, so as to discharge the sludge.

[0034] In the implementation process of the present invention, wastewater is first introduced through the water inlet 2. At the same time, the driving gear mechanism 10 is started. The driving gear mechanism 10 drives the separating baffle mechanism 9. The separating baffle mechanism 9 lifts the solid debris in the wastewater treatment tank 1, and finally the solid debris falls onto the debris conveying mechanism 8. At the same time, the debris conveying mechanism 8 can be driven by the driving gear mechanism 10. The debris conveying mechanism 8 can convey the solid debris in a directional manner. At the same time, a flocculant is put into the wastewater treatment tank 1. At this time, the suspended matter in the wastewater will fall to the bottom of the wastewater treatment tank 1, and the sludge sediment will fall into the rotating baffle mechanism 4. At this time, if it is necessary to ensure continuous wastewater treatment, the rotating baffle mechanism 4 is started to isolate the sludge sediment in the sludge conveying mechanism 5 and the wastewater in the wastewater treatment tank 1. At this time, starting the sludge conveying mechanism 5 can convey the sludge sediment deposited at the bottom, and opening the end baffle mechanism 6 can discharge the sludge sediment.

[0035] The present invention can realize the separation of the sludge sediment from the wastewater treatment tank 1 by setting the rotating baffle mechanism 4, so as to realize the treatment of the sludge sediment deposited at the bottom without stopping the machine. The sludge sediment deposited in the rotating baffle mechanism 4 can be conveyed by the sludge conveying mechanism 5. The end of the rotating baffle mechanism 4 can be blocked by the end baffle mechanism 6. The debris conveying mechanism 8 and the separating baffle mechanism 9 can be driven by the driving gear mechanism 10. The separating baffle mechanism 9 can lift the solid debris in the wastewater treatment tank 1 into the debris conveying mechanism 8. The debris conveying mechanism 8 can convey the debris in a directional manner, improving the efficiency of wastewater separation and treatment.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wastewater treatment device for the production of aluminum hydroxide flame retardant, including a wastewater treatment tank (1), characterized in that, One side of the bottom of the wastewater treatment tank (1) is provided with a water inlet (2), the side of the wastewater treatment tank (1) far from the water inlet (2) is provided with a water outlet (3), the bottom of the wastewater treatment tank (1) is provided with a rotating baffle mechanism (4), the rotating baffle mechanism (4) is provided with a sludge conveying mechanism (5) and an end baffle mechanism (6), the wastewater treatment tank (1) is provided with a mounting frame (7), the mounting frame (7) is provided with a sundry conveying mechanism (8), the sundry conveying mechanism (8) is provided with a separating baffle mechanism (9), and the mounting frame (7) is provided with a driving gear mechanism (10); the rotating baffle mechanism (4) is used to separate the sludge conveying mechanism (5) from the wastewater treatment tank (1), the end baffle mechanism (6) is used to block the end of the rotating baffle mechanism (4), the driving gear mechanism (10) is used to drive the sundry conveying mechanism (8) and the separating baffle mechanism (9), the separating baffle mechanism (9) is used to dial sundries onto the sundry conveying mechanism (8), and the sundry conveying mechanism (8) is used to convey the sundries in a fixed direction.

2. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 1, characterized in that, The rotating baffle mechanism (4) includes a baffle sleeve (401) rotatably connected to the wastewater treatment tank (1), the baffle sleeve (401) is provided with a sludge inlet groove (402), the bottom of the wastewater treatment tank (1) is convexly arranged, the bottom of the wastewater treatment tank (1) is attached to the outside of the baffle sleeve (401), a first motor (403) is fixedly connected to the outside of the wastewater treatment tank (1), the output shaft of the first motor (403) is fixedly connected to a first gear (404), the first gear (404) meshes with a second gear (405), and the second gear (405) is fixed to the outside of the baffle sleeve (401).

3. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 2, characterized in that, The sludge conveying mechanism (5) includes a second motor (501) arranged outside the baffle sleeve (401), the output shaft of the second motor (501) is fixedly connected to a sludge conveying shaft (502), the sludge conveying shaft (502) is rotatably connected to the baffle sleeve (401), and the sludge conveying shaft (502) is fixedly connected to a first spiral auger blade (503).

4. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 3, characterized in that, The end baffle mechanism (6) includes a linear motor (601) fixed to the side of the wastewater treatment tank (1), the end of the linear motor (601) far from the wastewater treatment tank (1) is fixedly connected to an end baffle (602), and the end baffle (602) is rotatably connected to the baffle sleeve (401).

5. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 4, characterized in that, The sundry conveying mechanism (8) includes a conveying cylinder (801) fixed to the mounting frame (7), an opening notch (802) is arranged above the conveying cylinder (801), the mounting frame (7) is rotatably connected to a sundry conveying shaft (803), the sundry conveying shaft (803) is coaxially arranged with the conveying cylinder (801), the sundry conveying shaft (803) is fixedly connected to a second spiral auger blade (804), and a plurality of first water leakage holes (805) are arranged on the conveying cylinder (801).

6. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 1, characterized in that, The separation baffle mechanism (9) includes a rotating ring (901) rotatably connected to the conveying cylinder (801). The rotating ring (901) is fixedly connected to a separation plate (902). The separation plate (902) is provided with a plurality of second water leakage holes (903). The edge of the separation plate (902) is fixedly connected to a baffle (904).

7. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 6, characterized in that, The driving gear mechanism (10) includes a third motor (1001) fixed to the mounting frame (7). The output shaft of the third motor (1001) is fixedly connected to a third gear (1002). The third gear (1002) meshes with a fourth gear (1003). The fourth gear (1003) is coaxially and fixedly connected to a first gear shaft (1004). The first gear shaft (1004) is rotatably connected to the mounting frame (7). The first gear shaft (1004) is coaxially and fixedly connected to the debris conveying shaft (803). The fourth gear (1003) meshes with a fifth gear (1005). The fifth gear (1005) is coaxially and fixedly connected to a second gear shaft (1006). The second gear shaft (1006) is rotatably connected to the mounting frame (7). One end of the second gear shaft (1006) away from the fifth gear (1005) is fixedly connected to a sixth gear (1007). The sixth gear (1007) meshes with a seventh gear (1008). The seventh gear (1008) is fixed to the outside of the rotating ring (901).

8. The wastewater treatment equipment for the production of aluminum hydroxide flame retardant according to claim 1, characterized in that, An automatic feeding box is provided above the water inlet (2) on the wastewater treatment tank (1).