Wastewater pretreatment device

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a wastewater pretreatment device which comprises a rack, a residue filtering mechanism and a water outlet hopper, a treatment box is arranged on the rack, and a water inlet is formed in the top of the treatment box; comprising a plurality of conveying rollers rotationally arranged on a treatment box, a conveying belt is arranged on the conveying rollers, a plurality of water filtering holes are formed in the conveying belt, a plurality of slag collecting plates are arrayed on the outer surface of the conveying belt, synchronous wheels are arranged at the ends of the conveying rollers, the synchronous wheels are driven by a synchronous belt, and the first synchronous wheel is driven by a motor; the conveying belt comprises a water filtering section and a lifting section which are integrally arranged, a pressing roller is arranged at the position, between the water filtering section and the lifting section, of the treatment box, the water filtering section is parallel to the treatment box, the lifting section is higher than the water filtering section, and a slag outlet is formed in the position, below the water filtering section, of the treatment box; the water outlet hopper is arranged at the bottom of the treatment box, is communicated with the treatment box and is positioned below the water filtering section.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, and in particular relates to a wastewater pretreatment device. Background Art

[0002] Wastewater refers to the discharge water and runoff rainwater generated by residential activities. It includes domestic sewage, industrial wastewater and other wastewater flowing into the drainage pipes and other unused water. It usually refers to water that cannot be recycled after certain technical treatment or is difficult to purify after primary pollution. All kinds of wastewater have pollutants of different sizes and properties. In order to achieve good treatment effects on wastewater, we usually pre-treat the wastewater first. Wastewater pretreatment is a pretreatment facility set up according to the limited requirements of water quality in the treatment process before the wastewater is treated by traditional sedimentation methods, biological methods, etc. It is the throat of wastewater treatment.

[0003] The traditional wastewater pretreatment stage is to remove larger suspended matter and some precipitable matter in the wastewater, reduce the burden of subsequent biological treatment or deep treatment, and protect the precision treatment equipment from damage. Among the existing pretreatment devices, common ones are screens, sedimentation tanks, flotation tanks, etc. Although these facilities can effectively intercept some impurities, they are prone to blockage and low efficiency when treating wastewater containing a large amount of fibrous matter, fine suspended matter or large seasonal changes. Utility Model Content

[0004] Based on the problems mentioned in the above background technology, the utility model provides a wastewater pretreatment device.

[0005] The technical scheme adopted by the utility model is as follows: a wastewater pretreatment device, including a frame, a filter residue mechanism and a water outlet hopper, wherein a treatment box is arranged on the frame, and a water inlet is opened on the top of the treatment box; it includes a plurality of conveying rollers rotatably arranged on the treatment box, a conveying belt is arranged on the conveying roller, a plurality of water filtering holes are opened on the conveying belt, a plurality of slag collecting plates are arrayed on the outer surface of the conveying belt, a synchronous wheel is arranged at the end of the conveying roller, a plurality of the synchronous wheels are driven by a synchronous belt, and the first synchronous wheel is driven by a motor; the conveying belt includes an integrally arranged water filtering section and a lifting section, the treatment box is provided with a pressure roller between the water filtering section and the lifting section, the water filtering section is arranged parallel to the treatment box, the lifting section is higher than the water filtering section, and the treatment box is provided with a slag outlet below the water filtering section; the water outlet hopper is arranged at the bottom of the treatment box and is connected with the treatment box, and is located below the water filtering section.

[0006] Furthermore, the treatment box is provided with a partition plate between the water filtering section and the lifting section, and the treatment box is provided with an inclined plate close to the inner wall of the water filtering section.

[0007] Furthermore, the processing box is provided with a plurality of comb plates at the slag outlet.

[0008] Furthermore, the gap between two adjacent comb plates matches the width of the slag collecting plate.

[0009] Furthermore, the top surface of the comb plate contacts the outer surface of the conveyor belt.

[0010] Furthermore, the processing box is rotatably connected to a brush roller located at the slag outlet; the brush roller is driven by a motor and hard bristles are implanted on the brush roller.

[0011] Furthermore, a filter residue net is provided on the water outlet bucket.

[0012] Beneficial effects of the utility model:

[0013] 1. Put the wastewater into the treatment box through the water inlet, and the wastewater will be discharged to the water outlet bucket below through the water filter holes on the conveyor belt. The waste that cannot pass through the water filter holes will be collected on the conveyor belt. After the lifting of the lifting section, the conveyor belt tilts so that the waste slides down and leans against the slag collecting plate. After the conveyor belt moves in an annular manner and reverses, the waste on the slag collecting plate inverts, falls, and is discharged from the slag outlet. Through the setting of the slag filtering mechanism, the effect of uninterrupted waste output can be achieved, and the waste will not continue to accumulate in the treatment box, affecting the wastewater pretreatment efficiency. At the same time, the waste is continuously output to the outside, reducing the probability of blockage.

[0014] 2. Use the hard bristles on the brush roller to scrape and clean the waste that cannot fall off automatically on the slag collecting plate to ensure continuous use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 It is the internal schematic diagram of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram at A in the middle;

[0019] Figure 4 This is a front view of the utility model;

[0020] Figure 5 This is a top view of the conveyor belt of the utility model;

[0021] The attached drawings are marked as follows:

[0022] Frame 1, processing box 11, water inlet 12, slag outlet 13, water outlet hopper 14, partition plate 15, inclined plate 16, slag filter net 17, conveying roller 18, pressure roller 19, conveyor belt 2, water filtering hole 21, slag collecting plate 22, combing plate 23, water filtering section 24, lifting section 25, brush roller 3. DETAILED DESCRIPTION

[0023] like Figure 1 to Figure 4 As shown, a wastewater pretreatment device includes a frame 1, a filter residue mechanism and a water outlet bucket 14, wherein the frame 1 is provided with a treatment box 11, and a water inlet 12 is provided on the top of the treatment box 11; the device includes a plurality of conveying rollers 18 rotatably arranged on the treatment box 11, a conveying belt 2 is provided on the conveying roller 18, a plurality of water filtering holes 21 are provided on the conveying belt 2, a plurality of slag collecting plates 22 are arranged on the outer surface of the conveying belt 2, a synchronous wheel is provided at the end of the conveying roller 18, and the plurality of synchronous wheels are driven by a synchronous belt , the first synchronous wheel is driven by a motor; the conveyor belt 2 includes an integrally arranged water filtering section 24 and a lifting section 25, the processing box 11 is provided with a pressure roller 19 between the water filtering section 24 and the lifting section 25, the water filtering section 24 is arranged parallel to the processing box 11, the lifting section 25 is higher than the water filtering section 24, and the processing box 11 is provided with a slag outlet 13 below the water filtering section 24; the water outlet hopper 14 is arranged at the bottom of the processing box 11 and is connected to the processing box 11, and is located below the water filtering section 24.

[0024] By adopting the above technical scheme, wastewater is put into the treatment box 11 through the water inlet 12, and the wastewater is discharged to the water outlet hopper 14 below through the water filter hole 21 on the conveyor belt 2. The waste that cannot pass through the water filter hole 21 will be collected on the conveyor belt 2, and after being lifted by the lifting section 25, the waste will fall onto the slag collecting plate 22. After the conveyor belt 2 moves in a circular direction and reverses, the waste on the slag collecting plate 22 is inverted, falls, and is discharged from the slag outlet 13.

[0025] Compared with the prior art, the setting of the filter residue mechanism can achieve the effect of uninterrupted waste output, and the waste will not continue to accumulate in the treatment box 11, affecting the wastewater pretreatment efficiency. At the same time, the waste is continuously output to the outside, reducing the probability of blockage.

[0026] As a preferred solution, the treatment box 11 is provided with a partition plate 15 between the water filtering section 24 and the lifting section 25, and the treatment box 11 is provided with an inclined plate 16 near the inner wall of the water filtering section 24. The arrangement of the inclined plate 16 facilitates the waste to slide down with the water and fall onto the conveyor belt 2, and the arrangement of the partition plate 15 facilitates the waste water to flow downward into the water outlet bucket 14, thereby playing a blocking role.

[0027] As a preferred solution, the processing box 11 is provided with a plurality of combing plates 23 at the slag outlet 13; the gap between two adjacent combing plates 23 matches the width of the slag collecting plate 22; the top surface of the combing plate 23 contacts the outer surface of the conveyor belt 2. Through the arrangement of the combing plates 23, the conveyor belt 2 is scraped and combed again, and the slag collecting plate 22 is combed again, while water splashing is prevented.

[0028] As a preferred solution, the processing box 11 is rotatably connected to a brush roller 3 at the slag outlet 13, and the brush roller 3 is driven by a motor and has hard bristles implanted on the brush roller 3. The hard bristles on the brush roller 3 are used to scrape and clean the waste that cannot automatically fall off the slag collecting plate 22, thereby ensuring continuous use.

[0029] As a preferred solution, a filter residue net 17 is provided on the water outlet bucket 14. The filter residue net 17 is provided to perform secondary filtration on the waste material to ensure the wastewater filtration effect.

[0030] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A wastewater pretreatment device, characterized in that: include A frame (1), wherein a treatment box (11) is arranged on the frame (1), and a water inlet (12) is provided on the top of the treatment box (11); The residue filtering mechanism comprises a plurality of conveying rollers (18) rotatably arranged on a processing box (11), a conveying belt (2) being arranged on the conveying roller (18), a plurality of water filtering holes (21) being opened on the conveying belt (2), a plurality of residue collecting plates (22) being arranged in an array on the outer surface of the conveying belt (2), a synchronous wheel being arranged at the end of the conveying roller (18), a plurality of the synchronous wheels being driven by a synchronous belt, and a first synchronous wheel being driven by a motor; The conveyor belt (2) comprises an integrally arranged water filtering section (24) and a lifting section (25); the processing box (11) is provided with a pressure roller (19) between the water filtering section (24) and the lifting section (25); the water filtering section (24) is arranged parallel to the processing box (11); the lifting section (25) is higher than the water filtering section (24); and the processing box (11) is provided with a slag discharge port (13) below the water filtering section (24); A water outlet hopper (14) is arranged at the bottom of the treatment box (11) and is in communication with the treatment box (11), and is located below the water filtering section (24).

2. A wastewater pretreatment device according to claim 1, characterized in that: The treatment box (11) is provided with a partition plate (15) between the water filtering section (24) and the lifting section (25), and the treatment box (11) is provided with an inclined plate (16) close to the inner wall of the water filtering section (24).

3. A wastewater pretreatment device according to claim 1, characterized in that: The processing box (11) is provided with a plurality of comb plates (23) at the slag outlet (13).

4. A wastewater pretreatment device according to claim 3, characterized in that: The gap between two adjacent comb plates (23) matches the width of the slag collecting plate (22).

5. A wastewater pretreatment device according to claim 4, characterized in that: The top surface of the comb plate (23) contacts the outer surface of the conveyor belt (2).

6. A wastewater pretreatment device according to claim 1 or 5, characterized in that: The processing box (11) is rotatably connected to a brush roller (3) located at the slag outlet (13); the brush roller (3) is driven by a motor and hard bristles are implanted on the brush roller (3).

7. A wastewater pretreatment device according to claim 6, characterized in that: The water outlet bucket (14) is provided with a filter residue net (17).

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