A new front sewage treatment device

Abstract

The utility model relates to sewage treatment technical field, concretely relates to a novel front -positioned sewage treatment device, including treatment tank, the water inlet pipe is connected with treatment tank, the bottom of treatment tank is connected with the drainage channel, is equipped with the drainage grate in the drainage channel, the filter screen frame is attached to the inboard wall of treatment tank and is provided, the filter screen frame is located above the drainage grate, is equipped with the lifting device above treatment tank, after sewage enters treatment tank through the water inlet pipe, first carries out primary filtration through the filter screen frame bottom, intercepts larger impurity or sludge flocculation, and the impurity is intercepted in advance through the filter screen frame, reduces the jamming probability of drainage grate, and the filtered sewage flows to the bottom of treatment tank, and after filtering again through the drainage grate, discharges through the drainage channel, when the filter screen frame is jammed, hoists it through the lifting device and cleans up, need not to dismantle the drainage grate, and the filter screen frame can be cleaned up, avoid the cumbersome operation of dismantling the drainage grate, save time, improve efficiency, reduce the labor intensity of staff.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a novel pre-treatment wastewater device. Background Technology

[0002] In wastewater treatment plants employing biological treatment processes, the generation of microbial sludge is a core component and an inevitable outcome of the wastewater treatment process. This is because microorganisms purify water by decomposing organic pollutants in the wastewater. During this process, the microorganisms proliferate rapidly, forming microbial flocs and microbial sludge. To ensure that the effluent meets standards and maintains the stable operation of the wastewater treatment system, it is necessary to separate the microbial sludge or flocs.

[0003] Existing wastewater treatment devices include treatment tanks and drainage channels. Drainage grates are installed in the drainage channels for solid-liquid separation, that is, to isolate sludge or flocs outside the opening of the drainage grate to prevent them from entering the drainage channel. However, with the increase in the number of times and time used, the opening of the drainage grate gradually becomes clogged. It takes a lot of time for workers to remove the drainage grate and clean it, which not only reduces work efficiency but also increases the labor intensity of workers. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a new type of pre-treatment wastewater device to solve the above problems.

[0005] The purpose of this utility model is achieved as follows: a novel pre-treatment sewage device includes a treatment tank, an inlet pipe connected to the treatment tank, a drainage channel connected to the bottom of the treatment tank, a drainage grate inside the drainage channel, a filter screen frame attached to the inner side wall of the treatment tank, the filter screen frame being located above the drainage grate, and a lifting device for lifting the filter screen frame being provided above the treatment tank.

[0006] Preferably, the upper end of the filter frame is provided with an L-shaped component, the lower end of the L-shaped component is provided with a fixing plate, the lower end face of the L-shaped component abuts against the end face of the processing tank opening, the side of the fixing plate abuts against the outer wall of the processing tank, the processing tank is provided with a through slot, and a matching limiting protrusion is inserted into the through slot.

[0007] Preferably, the side of the limiting protrusion abuts against the side of the filter frame.

[0008] Preferably, when the lower end face of the fixing plate abuts against the upper end face of the limiting protrusion, the horizontal height of the lower end face of the filter screen frame is higher than the horizontal height of the water inlet pipe.

[0009] Preferably, the lifting device is an electric hoist, which lifts the filter frame using a hook.

[0010] This utility model has the following beneficial effects:

[0011] 1. This novel pre-treatment wastewater system allows wastewater to enter the treatment tank through the inlet pipe. It first undergoes preliminary filtration at the bottom of the upper filter screen, intercepting larger impurities or sludge flocs. This early interception of impurities by the filter screen reduces the probability of clogging the drainage grate. The filtered wastewater flows to the bottom of the treatment tank, where it is filtered again by the drainage grate before being discharged through the drainage channel. When the filter screen becomes clogged, it can be lifted and cleaned using a lifting device, eliminating the need to disassemble the drainage grate. This avoids the tedious operation of removing the drainage grate, saving time, improving efficiency, and reducing the workload of staff.

[0012] 2. The lifting device lifts the filter screen frame so that the fixing plate is higher than the horizontal height of the through slot. The limiting protrusion is inserted into the through slot, and the side of the limiting protrusion abuts against the side of the filter screen frame. When the lower end face of the fixing plate abuts against the upper end face of the limiting protrusion, the horizontal height of the lower end face of the filter screen frame is higher than the horizontal height of the inlet pipe. In this state of use, the limiting protrusion supports the bottom of the fixing plate, so that the filter screen frame is suspended and located above the inlet pipe. It is not necessary to completely disassemble and remove the filter screen frame. For example, when the inlet pipe is connected to other clean water cleaning equipment, clean water can directly rinse the drain grate by entering the treatment tank through the inlet pipe. Since it does not pass through the filter screen frame, the water flow is large, the rinsing and cleaning efficiency is high, and the maintenance convenience of the device is improved. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the existing technology;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is the left view of the present invention;

[0018] Figure 5 This is a left view of another usage state of this utility model;

[0019] The labels in the attached diagram are:

[0020] 1. Treatment tank; 2. Inlet pipe; 3. Drainage channel; 4. Drainage grate; 5. Filter screen frame; 6. Lifting device; 7. L-shaped piece; 8. Fixing plate; 9. Through slot; 10. Limiting protrusion. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0022] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0023] Example 1:

[0024] A novel pre-treatment wastewater device includes a treatment tank 1, an inlet pipe 2 connected to the treatment tank 1, a drainage channel 3 connected to the bottom of the treatment tank 1, a drainage grate 4 installed in the drainage channel 3, a filter screen frame 5 fitted to the inner side wall of the treatment tank 1, the filter screen frame 5 being located above the drainage grate 4, the end face of the inlet pipe 2 being flush with the end face of the side wall of the treatment tank 1 so as not to affect the up and down movement of the filter screen frame 5, and a lifting device 6 for lifting the filter screen frame 5 being provided above the treatment tank 1.

[0025] In operation, wastewater enters the treatment tank 1 through the inlet pipe 2 and undergoes preliminary filtration at the bottom of the upper filter screen 5, intercepting larger impurities or sludge flocs. This early interception of impurities by the filter screen 5 reduces the probability of clogging the drain grate 4. The filtered wastewater flows to the bottom of the treatment tank 1, is filtered again by the drain grate 4, and then discharged through the drainage channel 3. When the filter screen 5 becomes clogged, it can be lifted and cleaned using the lifting device 6. This eliminates the need to disassemble the drain grate 4, saving time, increasing efficiency, and reducing the workload of staff.

[0026] In this embodiment, the upper end of the filter frame 5 is provided with an L-shaped member 7, and the lower end of the L-shaped member 7 is provided with a fixing plate 8. The lower end face of the L-shaped member 7 abuts against the end face of the groove of the processing tank 1, and the side of the fixing plate 8 abuts against the outer wall of the processing tank 1. The processing tank 1 is provided with a through slot 9, and a matching limiting protrusion 10 is inserted into the through slot 9. The L-shaped member 7 abuts against the groove of the processing tank 1 through its lower end face, thereby limiting the vertical displacement of the filter frame 5 and enhancing the installation stability of the filter frame 5.

[0027] like Figure 5As shown, the filter screen frame 5 is first lifted by the lifting device 6 so that the fixing plate 8 is higher than the horizontal height of the through slot 9. The limiting protrusion 10 is then inserted into the through slot 9, and the side of the limiting protrusion 10 abuts against the side of the filter screen frame 5. When the lower end face of the fixing plate 8 abuts against the upper end face of the limiting protrusion 10, the horizontal height of the lower end face of the filter screen frame 5 is higher than the horizontal height of the water inlet pipe 2. In this state of use, the limiting protrusion 10 supports the bottom of the fixing plate 8, so that the filter screen frame 5 is suspended and located above the water inlet pipe 2. It is not necessary to completely disassemble and remove the filter screen frame 5. For example, when the water inlet pipe 2 is connected to other clean water cleaning equipment, clean water enters the treatment tank 1 through the water inlet pipe 2 and can directly rinse the drain grate 4. Since it does not pass through the filter screen frame 5, the water flow is large, the rinsing and cleaning efficiency is high, and the maintenance convenience of the device is improved.

[0028] In this embodiment, the lifting device 6 is an electric hoist with a rated lifting capacity of 500 kg, which can be adapted to the filter screen frame 5. The lifting speed is 8 m / min. The electric hoist lifts the filter screen frame 5 through the hook. The electric hoist has a high degree of automation, which can replace manual lifting, save manpower, reduce the labor intensity of manual handling, and improve cleaning efficiency.

[0029] The working principle of this utility model is as follows: This novel pre-treatment sewage device includes a treatment tank 1, an inlet pipe 2 connected to the treatment tank 1, a drainage channel 3 connected to the bottom of the treatment tank 1, a drainage grate 4 installed in the drainage channel 3, and a filter screen frame 5 fitted to the inner side wall of the treatment tank 1, positioned above the drainage grate 4. The end face of the inlet pipe 2 is flush with the end face of the side wall of the treatment tank 1, so as not to affect the up-and-down movement of the filter screen frame 5. A lifting device 6 for lifting the filter screen frame 5 is provided above the treatment tank 1. In use, sewage enters the treatment tank 1 through the inlet pipe 2 and first undergoes preliminary filtration through the bottom of the filter screen frame 5 above, intercepting larger impurities or sludge flocs. The filter screen frame 5 intercepts impurities in advance, reducing the probability of clogging the drainage grate 4. The filtered sewage flows to the bottom of the treatment tank 1, is filtered again by the drainage grate 4, and is discharged through the drainage channel 3. When the filter screen frame 5 becomes clogged, it can be lifted and cleaned using the lifting device 6. There is no need to disassemble the drain grate 4; simply cleaning the filter screen frame 5 is sufficient. This avoids the tedious operation of disassembling the drain grate 4, saving time, improving efficiency, and reducing the labor intensity of workers.

[0030] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be divided into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel pre-treatment wastewater treatment device, comprising a treatment tank (1), wherein an inlet pipe (2) is connected to the treatment tank (1), and a drainage channel (3) is connected to the bottom of the treatment tank (1), wherein a drainage grate (4) is provided in the drainage channel (3), characterized in that: A filter screen frame (5) is fitted to the inner wall of the treatment tank (1). The filter screen frame (5) is located above the drainage grate (4). A lifting device (6) for lifting the filter screen frame (5) is provided above the treatment tank (1).

2. A novel pre-positioned sewage treatment device as claimed in claim 1, wherein: The filter frame (5) has an L-shaped part (7) at its upper end and a fixing plate (8) at its lower end. The lower end face of the L-shaped part (7) abuts against the end face of the groove of the treatment tank (1). The side of the fixing plate (8) abuts against the outer wall of the treatment tank (1). The treatment tank (1) has a through slot (9) and a matching limiting protrusion (10) is inserted into the through slot (9).

3. A novel pre-positioned sewage treatment device as claimed in claim 2, wherein: The side of the limiting protrusion (10) abuts against the side of the filter frame (5).

4. A novel pre-positioned sewage treatment device as claimed in claim 2, wherein: When the lower end face of the fixing plate (8) abuts against the upper end face of the limiting protrusion (10), the horizontal height of the lower end face of the filter screen frame (5) is higher than the horizontal height of the water inlet pipe (2).

5. A novel pre-positioned sewage treatment device as claimed in claim 1, wherein: The lifting device (6) is an electric hoist, which lifts the filter screen frame (5) by means of a hook.

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