Sludge and solid medicament mixing and conditioning device

Abstract

The utility model relates to the technical field of sludge treatment devices, and discloses a sludge and solid medicament mixing and conditioning device which comprises a mixing tank and a rotating rod, the rotating rod is vertically and rotatably mounted in the mixing tank, a material cover is fixed on the outer ring above the rotating rod in a surrounding manner, and the outer ring of the material cover is close to the inner wall of the mixing tank; electric push rods are vertically mounted above the two sides of the mixing tank, the extending ends of the electric push rods penetrate into the mixing tank, lifting plates are fixed to the tail ends of the bottoms of the electric push rods, and the rotating rods penetrate through the middle positions of the lifting plates. According to the technical scheme, the material cover is fixed on the outer ring of the rotating rod and is arranged in the upper part of the mixing tank, added solid flocculants and other medicaments can fall on the inner surface of the material cover, the lifting plate descends to be close to the upper part in the material cover when sludge is stirred, and the solid medicaments are ground by utilizing the upper grinding strip and the lower grinding strip, so that the solid medicaments can be effectively stirred. And then the solid medicament falls into the sludge through the leaking hole and is stirred and mixed with the sludge, so that the aim of uniformly and quickly mixing the solid medicament and the sludge is conveniently realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment devices, in particular to a sludge and solid agent mixing and conditioning device. Background Art

[0002] Sludge dewatering refers to a sludge treatment method that removes moisture from flowing primary, concentrated or digested sludge and converts it into semi-solid or solid mud blocks. After dewatering, the sludge moisture content can be reduced to 55% to 80%, depending on the properties of the sludge and sediment and the efficiency of the dewatering equipment. Further dewatering of the sludge is called sludge drying. The moisture content of dried sludge is less than 10%. The main dewatering methods are natural drying, mechanical dewatering and granulation. Natural drying and mechanical dewatering are suitable for sewage sludge, and granulation is suitable for coagulated and precipitated sludge.

[0003] Before sludge dewatering, solid agents such as flocculants are added to improve the dewatering effect. This requires agitation and mixing of the sludge and solid agents. Large particle sizes of solid agents such as flocculants make it difficult to quickly mix with the sludge, and the solid agents are also not uniformly distributed. Therefore, we propose a sludge and solid agent mixing and conditioning device. Utility Model Content

[0004] The purpose of the utility model is to provide a sludge and solid agent mixing and conditioning device, by fixing a material cover on the outer ring of a rotating rod and placing it above the interior of a mixing tank, added solid flocculants and other agents can fall onto the inner surface of the material cover, and when stirring the sludge, the lifting plate is lowered close to the upper part of the material cover, and the solid agent is ground by upper and lower grinding bars, and then falls into the sludge through the leakage hole and is stirred and mixed with the sludge, thereby facilitating the purpose of uniform and rapid mixing of the solid agent and the sludge, and solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sludge and solid agent mixing and conditioning device, comprising a mixing tank and a rotating rod, the rotating rod being vertically rotatably installed inside the mixing tank, a plurality of stirring rods being laterally fixed to the lower outer ring of the rotating rod, and the rotating rod being transmission connected to the motor installed on the surface of the mixing tank; a material cover is fixed around the upper outer ring of the rotating rod, the outer ring of the material cover is close to the inner wall of the mixing tank, electric push rods are vertically installed above both sides of the mixing tank, the protruding ends of the electric push rods penetrate into the interior of the mixing tank, and a lifting plate is fixed to the bottom end of the electric push rod, the lifting plate is placed directly above the material cover, and the rotating rod passes through the middle position of the lifting plate, the bottom outer ring surface of the lifting plate and the upper outer ring surface of the material cover are evenly provided with upper grinding bars and lower grinding bars respectively, and a plurality of leakage holes are provided on the surface of the material cover between the lower grinding bars.

[0006] By adopting the above technical solution, the sludge is added to the mixing tank below the material cover, and the solid medicine is added to the surface of the material cover. When stirring and mixing, the lifting plate is driven to lower the height, and the material cover rotates with the rotating rod. The solid medicine is ground by the action of the upper and lower grinding bars, so that the medicine can fall evenly into the sludge below through the leakage hole and be stirred and mixed quickly.

[0007] Optionally, a rod opening is opened in the middle of the surface of the lifting plate, and the rotating rod passes through the lifting plate through the rod opening.

[0008] Optionally, a discharge pipe is connected to the middle position of the bottom of the mixing tank, and the discharge pipe is connected to the interior of the mixing tank.

[0009] By adopting the above technical solution, the sludge that has been stirred and mixed is discharged from the discharge pipe.

[0010] Optionally, a hopper connected to the interior of the mixing tank is connected to the upper side of the mixing tank, and the opening at the bottom of the hopper is located below the material cover.

[0011] By adopting the above technical solution, sludge can be added into the mixing tank below the material cover through the hopper.

[0012] Optionally, an addition hopper connected to the interior of the mixing tank is connected to the upper side of the mixing tank, and an opening at the bottom of the addition hopper is located above the material cover.

[0013] By adopting the above technical solution, solid flocculants and other chemicals can be added into the material cover through the adding hopper.

[0014] Optionally, the outer ring of the bottom of the mixing tank is vertically supported by a support leg, and a plurality of support legs are provided.

[0015] By adopting the above technical solution, the mixing tank is supported by a plurality of legs evenly arranged on the outer ring.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The technical solution of the present application is to fix a material cover on the outer ring of the rotating rod and place it above the mixing tank. The added solid flocculants and other chemicals can fall onto the inner surface of the material cover. When the sludge is stirred, the lifting plate is lowered close to the upper part of the material cover, and the upper and lower grinding bars are used to grind the solid chemicals. The solid chemicals then fall into the sludge through the leakage holes and are stirred and mixed with the sludge, thereby achieving the purpose of uniform and rapid mixing of the solid chemicals and the sludge.

[0018] 2. The technical solution of the present application realizes the purpose of grinding by driving the material cover to rotate so as to realize the action of the upper and lower grinding bars. When adding solid medicine, the material cover can be driven to rotate, which is conducive to dropping the solid medicine to different positions on the inner surface of the material cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the sludge and solid agent mixing and conditioning device of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the sludge and solid agent mixing and conditioning device of the utility model;

[0022] Figure 3 This is a schematic diagram of the surface structure of the material cover of the sludge and solid agent mixing and conditioning device of the utility model.

[0023] In the figure: 1. Mixing tank; 11. Hopper; 12. Adding hopper; 13. Support leg; 14. Discharge pipe; 2. Rotating rod; 21. Stirring rod; 22. Material cover; 221. Lower grinding bar; 222. Leak hole; 23. Motor; 3. Electric push rod; 31. Lifting plate; 32. Rod mouth; 33. Upper grinding bar. DETAILED DESCRIPTION

[0024] See also Figure 1-3 The utility model provides a technical solution: a sludge and solid agent mixing and conditioning device, including a mixing tank 1 and a rotating rod 2. The bottom outer ring of the mixing tank 1 is vertically supported by a support leg 13, and the support leg 13 is provided with multiple legs to support the mixing tank 1. The rotating rod 2 is vertically rotatably installed inside the mixing tank 1, and multiple stirring rods 21 are horizontally fixed to the lower outer ring of the rotating rod 2. The rotating rod 2 is transmission-connected to the motor 23 installed on the surface of the mixing tank 1. The hopper 11 connected to the interior of the mixing tank 1 is connected to the upper side of the side of the mixing tank 1, so that the sludge raw material can be added from the hopper 11 to the interior of the mixing tank 1. When the motor 23 is started, it can drive the rotating rod 2 and the stirring rod 21, thereby achieving the purpose of stirring the sludge.

[0025] A material cover 22 is fixed around the upper outer ring of the rotating rod 2. When the rotating rod 2 and the stirring rod 21 rotate, the material cover 22 will be driven to rotate at the same time. The outer ring of the material cover 22 is close to the inner wall of the mixing tank 1. The material cover 22 is located above the bottom opening of the hopper 11, so that when the sludge is added, it falls into the mixing tank 1 below the material cover 22. The upper right side of the mixing tank 1 is connected to the adding hopper 12 connected to its interior. The opening at the bottom of the adding hopper 12 is located above the material cover 22, so that when the material cover 22 is driven to rotate, solid flocculants and other agents are added from the adding hopper 12 and then fall into different positions in the material cover 22.

[0026] Electric push rods 3 are vertically installed above both sides of the mixing tank 1. The protruding ends of the electric push rods 3 penetrate into the interior of the mixing tank 1, and a lifting plate 31 is fixed to the bottom end of the electric push rods 3. The lifting plate 31 is placed directly above the material cover 22, and when the lifting plate 31 is raised to the highest point, it is also located above the opening below the adding bucket 12 to ensure that the addition of solid flocculants and chemicals will not be blocked by the lifting plate 31. A rod opening 32 is opened in the middle of the surface of the lifting plate 31, and the rotating rod 2 passes through the lifting plate 31 through the rod opening 32.

[0027] The bottom outer ring surface of the lifting plate 31 and the upper outer ring surface of the material cover 22 are respectively evenly provided with upper grinding bars 33 and lower grinding bars 221, and a plurality of leakage holes 222 are opened on the surface of the material cover 22 between the lower grinding bars 221. When the rotating rod 2 and the stirring rod 21 stir the sludge, the lifting plate 31 is first lowered to a height close to the upper surface of the material cover 22. When the material cover 22 rotates, the solid flocculant or chemical can be evenly spread on the surface of the material cover 22 under the scraping action of the upper grinding bars 33. Then the lifting plate 31 is driven to lower the height further close to the top of the material cover 22. Thereafter, the solid flocculant or chemical can be ground under the action of the upper grinding bars 33 and the lower grinding bars 221, and then evenly fall from the leakage holes 222 into the sludge to be stirred and mixed.

[0028] A discharge pipe 14 is connected to the middle position of the bottom of the mixing tank 1. The discharge pipe 14 is connected to the interior of the mixing tank 1. After the butterfly valve is installed on the discharge pipe 14, the butterfly valve is kept closed during stirring and mixing. After the stirring and mixing is completed, the butterfly valve is opened to discharge the sludge and transport it to the dehydration equipment for subsequent treatment through the conveying pipe.

[0029] During use, the discharge pipe 14 is first installed with a butterfly valve and then connected to the feed pipe. The motor 23 and the electric push rod 3 are both connected to the control device, so that the sludge to be stirred and mixed is put into the interior of the mixing tank 1 from the hopper 11, and the motor 23 drives the rotating rod 2 and the stirring rod 21 to rotate, while driving the material cover 22 to rotate, so that the solid flocculant is added through the adding hopper 12 and falls into the material cover 22. Since the material cover 22 is in a rotating state, the solid flocculant can be dropped at different positions on the surface of the material cover 22. Then the electric push rod 3 is controlled to drive the lifting plate 31 to lower its height so that the lifting plate 31 is close to the inner upper surface of the material cover 22. The motor 23 drives the rotating rod 2 and the stirring rod 21 to slowly stir the sludge, and at the same time drives the material cover 22 to rotate. The upper grinding bar 33 and the lower grinding bar 221 are used to move the solid flocculant to be spread on the inner surface of the material cover 22, and then the electric push rod 3 is controlled to further drive the lifting plate 31 to approach the inner surface of the material cover 22, so that the material cover 22 rotates with the rotating rod 2, and the lower grinding bar 221 and the lower grinding bar 221 cooperate with each other to grind the solid flocculant in the material cover 22 and evenly drop it into the sludge below through the leakage hole 222, and be stirred and mixed with the sludge. After the mixing is completed, the butterfly valve connected to the discharge pipe 14 is opened, and the stirred and mixed sludge can be transmitted to the subsequent treatment equipment through the feed pipeline. After that, the butterfly valve is closed and the lifting height of the lifting plate 31 is controlled to continue the stirring and mixing of the sludge.

Claims

1. A sludge and solid agent mixing and conditioning device, comprising a mixing tank (1) and a rotating rod (2), characterized in that: The rotating rod (2) is vertically rotatably mounted inside the mixing tank (1), a plurality of stirring rods (21) are laterally fixed to the outer ring below the rotating rod (2), and the rotating rod (2) is transmission-connected to a motor (23) mounted on the surface of the mixing tank (1); A material cover (22) is fixed around the upper outer ring of the rotating rod (2), and the outer ring of the material cover (22) is close to the inner wall of the mixing tank (1). Electric push rods (3) are vertically installed above both sides of the mixing tank (1). The protruding ends of the electric push rods (3) penetrate into the interior of the mixing tank (1), and a lifting plate (31) is fixed to the bottom end of the electric push rods (3). The lifting plate (31) is placed just above the material cover (22), and the rotating rod (2) penetrates the middle position of the lifting plate (31). The bottom outer ring surface of the lifting plate (31) and the upper outer ring surface of the material cover (22) are evenly provided with upper grinding strips (33) and lower grinding strips (221), respectively. A plurality of leakage holes (222) are opened on the surface of the material cover (22) between the lower grinding strips (221).

2. The sludge and solid agent mixing and conditioning device according to claim 1, characterized in that: A rod opening (32) is provided in the middle of the surface of the lifting plate (31), and the rotating rod (2) passes through the lifting plate (31) through the rod opening (32).

3. The sludge and solid agent mixing and conditioning device according to claim 1, characterized in that: A discharge pipe (14) is connected to the middle position of the bottom of the mixing tank (1), and the discharge pipe (14) is communicated with the interior of the mixing tank (1).

4. The sludge and solid agent mixing and conditioning device according to claim 1, characterized in that: A hopper (11) communicating with the interior of the mixing tank (1) is connected to the upper side of the mixing tank (1), and an opening at the bottom of the hopper (11) is located below the material cover (22).

5. The sludge and solid agent mixing and conditioning device according to claim 1, characterized in that: An adding hopper (12) communicating with the interior of the mixing tank (1) is connected to the upper side of the mixing tank (1), and an opening at the bottom of the adding hopper (12) is located above the material cover (22).

6. The sludge and solid agent mixing and conditioning device according to claim 1, characterized in that: The outer ring of the bottom of the mixing tank (1) is vertically supported by a support leg (13), and a plurality of support legs (13) are provided.

Images