An internal axial flow sludge thickener

Abstract

The utility model discloses an inner axial flow sludge thickener, including a dosing reaction tank and a rotary drum mud-water separation device, wherein the dosing reaction tank includes: a bracket, a water inlet, a stirring tank, a stirring reducer and a water outlet; wherein the water inlet is arranged at the lower side area of ​​the stirring tank, and the water outlet is arranged at the side of the stirring tank; the rotary drum mud-water separation device includes: a rotary drum, a machine body, a cover plate mechanism, an observation port, a rotor, a mud outlet, a filtrate outlet, a reducer, a water inlet tank, and a spray system. The utility model has a scientific and reasonable structural design, and is an integrated machine for mud-water separation and solid-liquid separation, with a compact structure, a small footprint, full-automatic operation, no need for full-time operators, and low operating costs.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to an inner axial flow sludge thickener. Background Art

[0002] The sewage treatment process can be simply understood as the precipitation of pollutants in the form of sludge, so that the sewage is purified. Therefore, a large amount of sludge is produced in the sewage treatment process. The precipitated sludge has a high water content, and the sludge pumped out by the water pump is basically water. This seriously affects the efficiency of sludge treatment. The commonly used sludge concentration method is a sludge concentration tank or a sludge concentration tank. But the concentration effect is not good. Because the sludge usually floats on the water surface after fermentation and expansion, the supernatant contains a large amount of sludge, and the sludge flows back to the treatment system through the discharged supernatant. It does not have a concentration effect, but increases the dead sludge in the system. This affects the sewage treatment effect. In addition, the sludge concentration tank or sludge concentration tank occupies a large area. The area of ​​​​the bottom sludge distribution is large, and it is difficult to extract the concentrated sludge. Therefore, if the sludge can be concentrated in the form of equipment, not only can a stable concentration effect be achieved, but also continuous production can be achieved. At the same time, it occupies a small area, has strong controllability, high operability, and high efficiency, so the invention of the sludge concentrator is of great significance. To this end, we propose an internal axial flow sludge thickener. Utility Model Content

[0003] The purpose of the utility model is to provide an inner axial flow sludge thickener to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inner axial flow sludge thickener, comprising a dosing reaction tank and a rotary drum mud-water separation device, wherein the dosing reaction tank comprises: a bracket, a water inlet, a stirring tank, a stirring reducer and a water outlet; wherein the water inlet is arranged in the lower side area of ​​the stirring tank, and the water outlet is arranged on the side of the stirring tank;

[0005] The rotary drum mud-water separation equipment comprises: a rotary drum, a machine body, a cover mechanism, an observation port, a rotor, a mud outlet, a filtrate outlet, a reducer, a water inlet tank, and a spray system. The rotary drum is mounted on the machine body, the cover mechanism is provided with an odor collecting port, the mud outlet is arranged at the rear end of the machine body, the filtrate outlet is mounted at the bottom of the machine body, the end of the reducer is connected with a sprocket transmission mechanism, and the water inlet tank is connected with the water outlet.

[0006] In the above scheme, the cover plate mechanism includes a spray cover plate, a top cover plate, a side cover plate and an end cover plate.

[0007] In the above solution, the rotating wheel is installed on the rotating wheel cover plate.

[0008] In the above solution, the observation port is installed at the end of the machine body.

[0009] In the above solution, the sprocket transmission mechanism is installed in the sprocket cover.

[0010] In the above solution, a connecting pipe is provided on the side of the machine body.

[0011] In the above scheme, the stirring reducer is connected to the stirring mechanism in the stirring tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Mud-water separation and solid-liquid separation integrated machine, compact structure, small footprint;

[0014] 2. Fully automatic operation, no need for full-time operators, low operating costs;

[0015] 3. It can produce continuously for 24 hours with high output;

[0016] 4. Stable and reliable, saving time and effort, and long service life;

[0017] 5. The equipment is installed on a horizontal platform and is equipped with inspection doors, observation windows, etc., making maintenance simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0021] In the figure: 1, drum 2, body 3A, spray cover 3B, top cover 3C, side cover 3D, end cover 3E, odor collection port 4, observation port 5, impeller cover 6, impeller 7, mud outlet 8, filtrate outlet 9, reducer 10, sprocket cover 11, water inlet box 12, spray system 13, stirring reducer 14, stirring tank 15, water outlet 16, water inlet 17, bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] See also Figure 1-3The utility model provides a technical solution: an inner axial flow sludge thickener, including a dosing reaction tank and a rotary drum mud-water separation device, wherein the dosing reaction tank includes: a bracket 17, a water inlet 16, a stirring tank 14, a stirring reducer 13 and a water outlet 15; wherein the water inlet 16 is arranged at the lower side area of ​​the stirring tank 14, and the water outlet 15 is arranged at the side of the stirring tank 14;

[0024] The rotary drum mud and water separation equipment includes: a rotary drum 1, a body 2, a cover mechanism, an observation port 4, a rotor 6, a mud outlet 7, a filtrate outlet 8, a reducer 9, a water inlet box 11, and a spray system 12. The rotary drum 1 is installed on the body 2, the cover mechanism is provided with an odor collection port 3E, the mud outlet 7 is arranged at the tail end of the body 2, the filtrate outlet 8 is installed at the bottom of the body 2, the end of the reducer 9 is connected to a sprocket transmission mechanism, and the water inlet box 11 is connected to the water outlet 15.

[0025] The internal axial flow sludge thickener produces large floccules through the flocculation reaction of adding drugs, and separates the mud and water through the filter screen to concentrate the sludge. It is characterized by high processing efficiency, low water content after concentration, and high degree of automation. The installation is simple and flexible. The sludge of the internal axial flow sludge thickener is transmitted along the axial direction, that is, the sludge is transmitted from the water inlet end to the mud bucket (tail end) along the axial direction.

[0026] In the above solution, the cover plate mechanism includes a spray cover plate 3A, a top cover plate 3B, a side cover plate 3C and an end cover plate 3D.

[0027] In the above solution, the rotating wheel 6 is installed on the rotating wheel cover plate 5 .

[0028] In the above solution, the observation port 4 is installed at the end of the body 2. The design of the observation port 4 can facilitate observation of the working conditions in the body 2.

[0029] In the above solution, the sprocket transmission mechanism is installed in the sprocket cover 10.

[0030] In the above scheme, a connecting pipe is provided on the side of the machine body 2. The connecting pipe is connected to the water supply equipment of the spray system, and the drum 1 is cleaned by continuously replenishing water flow to ensure that the filter surface is clean after the drum 1 stops, and the sludge does not dry on the filter surface, creating conditions for the next working cycle.

[0031] In the above solution, the stirring reducer 13 is connected to the stirring mechanism in the stirring tank 14 .

[0032] The internal axial flow sludge thickener is installed horizontally on the equipment platform or sewage treatment tank. The equipment is an integrated equipment consisting of a dosing reaction device and a drum filter device. It is a fully automated equipment that integrates mud-water separation, solid-liquid separation, automatic spray cleaning and other functions. The sludge is pumped into the equipment from the sedimentation tank through a non-clogging submersible sewage pump from the water inlet 16. First, it enters the mixing tank 14, and by adding PAM, the mixing device inside the mixing tank 14 is driven by the mixing reducer 13 to produce mud-water separation.

[0033] The mud-water mixture flows into the drum mud-water separation equipment by gravity and flows evenly through the inner surface of the filter. A filter with reasonable precision is set to separate the sludge from the water. The water penetrates into the water receiving bucket through the filter surface and is discharged through the discharge port. The sludge is "intercepted" by the filter. The drum 1 rotates clockwise from the water inlet end. Under the guidance of the spiral blades on the inner surface of the filter, the sludge flows from the water inlet end to the slag outlet along the axial direction, completing the entire process of sludge concentration.

[0034] The sludge adhering to the inner surface of the filter is continuously cleaned by the automatic spray system 12 on the top of the device, so that the surface of the filter is always kept clean. The structure of this device is relatively closed, and an odor collection port 3E is set on the top of the device. Under the suction of the fan, a slight negative pressure is generated inside the device, and the odor is discharged from the odor port, thereby achieving odor control.

[0035] Working principle:

[0036] In this type of internal axial flow sludge thickener, the sludge in the sedimentation tank is quantitatively pumped into the stirring tank 14 of the equipment by a water pump. While the sludge is being pumped in, the dosing device also adds medicine into the stirring tank 14. At the same time, the stirring device starts working, and the stirring reducer 13 drives the stirring mechanism in the stirring tank 14 to mix the mud and the agent. The mixed liquid after the separation of mud and water flows into the drum 1 through the water inlet 15 by gravity. The drum is supported by 4 wheels and is linked with the water pump and the stirring device under the action of the transmission system such as the sprocket, chain, and reducer 9. Sludge concentration is thus achieved. When the water inlet pump stops working, the stirring and the drum 1 automatically stop running. The spray device is set to stop after a delay to ensure that the filter surface is clean after the drum 1 stops, and the sludge does not dry on the filter surface, creating conditions for the next working cycle.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal axial flow sludge thickener, comprising a dosing reaction tank and a rotary drum mud-water separation device, characterized in that: The dosing reaction tank comprises: a bracket (17), a water inlet (16), a stirring tank (14), a stirring reducer (13) and a water outlet (15); wherein the water inlet (16) is arranged at the lower side area of ​​the stirring tank (14), and the water outlet (15) is arranged at the side of the stirring tank (14); The rotary drum mud-water separation device comprises: a rotary drum (1), a machine body (2), a cover mechanism, an observation port (4), a rotor (6), a mud outlet (7), a filtrate outlet (8), a reducer (9), a water inlet box (11), and a spray system (12). The rotary drum (1) is mounted on the machine body (2), an odor collecting port (3E) is provided on the cover mechanism, the mud outlet (7) is arranged at the rear end of the machine body (2), the filtrate outlet (8) is installed at the bottom of the machine body (2), a sprocket transmission mechanism is connected to the end of the reducer (9), and the water inlet box (11) is connected to a water outlet (15).

2. The inner axial flow sludge thickener according to claim 1, characterized in that: The cover plate mechanism comprises a spray cover plate (3A), a top cover (3B), a side cover plate (3C) and an end cover plate (3D).

3. The inner axial flow sludge thickener according to claim 1, characterized in that: The rotating wheel (6) is mounted on the rotating wheel cover plate (5).

4. The inner axial flow sludge thickener according to claim 1, characterized in that: The observation port (4) is installed at the end of the machine body (2).

5. The inner axial flow sludge thickener according to claim 1, characterized in that: The sprocket transmission mechanism is installed in the sprocket cover (10).

6. The inner axial flow sludge thickener according to claim 1, characterized in that: A connecting pipe is provided on the side of the machine body (2).

7. The inner axial flow sludge thickener according to claim 1, characterized in that: The stirring reducer (13) is connected to the stirring mechanism in the stirring tank (14).

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