Sludge selector for sewage treatment

Abstract

A sludge selector for sewage treatment relates to the technical field of sewage treatment and comprises a horizontally arranged sludge tank, a stirring structure is arranged in the sludge tank, a rectangular sludge discharge port is axially formed in the bottom surface of the sludge tank, and a granularity selection filter screen attached to the lower edge of the sludge discharge port is rotatably arranged on the outer wall of the sludge tank. And particle size selection filter hole sections of which the mesh number is gradually increased are sequentially arranged on the particle size selection filter screen. The sludge selecting device solves the problems that a sludge selecting device in the traditional technology cannot select and classify sludge with different granularities according to use requirements, so that the use range is reduced; and when the existing sludge is filtered, particulate matters are easy to accumulate on a filter screen, so that an operator needs to regularly enter the sludge treater to clean the filter screen, and the operation is tedious.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to sludge selector for sewage treatment. BACKGROUND

[0002] The life sewage and industrial waste water of factory will produce various sludge in the process of treatment. The solid in sludge is the suspended substance intercepted, is the biological sludge discharged by biological treatment system, and is the chemical sludge formed by adding reagent, and simultaneously, in addition to harmful substances, sludge also includes plant nutrients, organic matter and other useful substances, which can be used as agricultural fertilizer, soil conditioner or used for energy production. Therefore, in order to protect the environment, reduce pollution and fully utilize useful substances in sludge, the sludge must be properly treated.

[0003] The prior art discloses a patent with a publication number CN118063074A, which includes a pretreatment box for preliminary treatment of sludge, a filter pressing device connected to the pretreatment box for pressing sludge water, a drying device with a drying chamber for drying sludge, the drying chamber including a first area and a second area, the second area being connected to the filter pressing device, a incineration device connected to the first area of the drying chamber for incinerating harmful substances in sludge, a heating device connected to the drying chamber for providing hot air to the drying chamber, a waste gas chamber connected to the drying chamber for collecting harmful smoke in the drying chamber, and a packaging device connected to the second area of the drying chamber for packaging treated sludge.

[0004] The existing device gradually exposes the deficiencies of the prior art with use, mainly in the following aspects:

[0005] Firstly, the sludge after sewage sedimentation needs to be selected and classified according to different particle sizes, and the existing sludge selection device cannot select and classify sludge of different particle sizes according to the use requirements, reducing the use range.

[0006] Secondly, when the existing sludge is filtered, particles are easily accumulated on the filter screen, which requires the operator to enter the sludge processor regularly to clean the filter screen, which is complicated to operate.

[0007] From the above, it is obvious that the prior art has inconvenience and defects in actual use, so it is necessary to improve. CONTENT OF THE UTILITY MODEL

[0008] In view of defects in the prior art, the sludge selector for sewage treatment is used to solve the problems that the sludge selection device in the traditional technology cannot select and classify sludge with different particle sizes according to use requirements, and reduces the use range, and when the existing sludge is filtered, particles are easily accumulated on the filter screen, so that the operator needs to enter the sludge processor regularly to clean the filter screen, and the operation is complicated.

[0009] To achieve the above object, the utility model provides the following technical scheme:

[0010] The sludge selector for sewage treatment, including the sludge tank that horizontal arrangement is set, be equipped with the stirring structure in the sludge tank, the bottom surface of the sludge tank is opened along the axial direction and is set with the rectangular sludge discharge port, the outer wall of the sludge tank is rotatably equipped with the particle size selection filter screen that is attached to the lower edge of the sludge discharge port, the particle size selection filter screen is sequentially equipped with the particle size selection filter hole section that the mesh number is set in an increasing manner.

[0011] As an optimized scheme, the stirring structure includes a rotating shaft horizontally arranged on the opposite end walls of the sludge tank, a plurality of rows of stirring shafts are circumferentially arranged on the side wall of the rotating shaft, and a scraping plate in frictional contact with the inner wall of the sludge tank is fixedly connected to the end of the stirring shaft.

[0012] As an optimized scheme, two adjacent stirring shafts are radially staggered, and a sludge flow channel is formed between the two stirring shafts.

[0013] As an optimized scheme, arc-shaped guide seats are fixedly connected to the outer walls on both sides of the sludge discharge port of the sludge tank, arc-shaped grooves are formed in the arc-shaped guide seats, arc-shaped sliding strips are slidably arranged in the arc-shaped grooves in an arc-shaped direction, and the two side walls of the filter screen are fixedly connected to the two arc-shaped sliding strips.

[0014] As an optimized scheme, a drive machine is fixedly connected to the bottom of the sludge tank corresponding to each arc-shaped sliding strip, a gear is fixedly connected to the output end of the drive machine, a rack is fixedly connected to the lower surface of the arc-shaped sliding strip in a corresponding shape, an avoiding hole is formed in the arc-shaped guide seat, the gear passes through the avoiding hole and is engaged with the rack.

[0015] As an optimized scheme, a support frame is fixedly connected to the outer bottom surface of the sludge tank.

[0016] As an optimized scheme, a sludge collection guide cylinder located below the sludge discharge port is fixedly connected to the support frame.

[0017] As an optimized scheme, a speed reducer is fixedly connected to the outer wall of one end of the sludge tank to drive the rotating shaft to rotate.

[0018] As an optimized solution, the upper end of the sludge tank is provided with a rectangular sludge inlet.

[0019] As an optimized solution, a sludge inlet cylinder with a tapered shape is fixed to the upper edge of the sludge inlet.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] The treated sludge is introduced into the sludge tank through the sludge inlet cylinder. The particle size selection filter section with the largest mesh size is aligned with the sludge discharge outlet. As the sludge is stirred by the stirring structure, the sludge that meets the current particle size falls into the sludge collection guide cylinder through the sludge discharge outlet, thus discharging the sludge that meets the current particle size. Then, the drive motor drives the particle size selection filter to rotate, aligning the next particle size selection filter section with the sludge discharge outlet, thus discharging the next sludge that meets the current particle size. In this way, the sludge is selected and discharged according to different particle sizes, which improves the application range of sludge treatment.

[0022] By placing the particle size selection filter screen outside the sludge tank, operators can directly rinse the filter screen with a water gun from the outside when cleaning is required. This overcomes the need to enter the treatment tank as in traditional technology, greatly improving cleaning efficiency and simplifying operation. Attached Figure Description

[0023] 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0025] Fig. 2 This is a schematic diagram of the particle size selection filter section of this utility model;

[0026] Fig. 3 This is a schematic diagram of the arc-shaped guide seat of this utility model.

[0027] In the diagram: 1-Sludge tank; 2-Sludge outlet; 3-Particle size selector filter screen; 4-Rotating shaft; 5-Agitating shaft; 6-Scraper; 7-Reducer; 8-Sludge inlet; 9-Sludge feed tube; 10-Sludge collection guide tube; 11-Driver; 12-Arc-shaped guide seat; 13-Arc-shaped slide bar; 14-Gear; 15-Rack; 16-Particle size selector filter section. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] like Figs. 1 to 3 As shown, a sludge selector for wastewater treatment includes a horizontally arranged sludge tank 1. The sludge tank 1 is equipped with a stirring structure. A rectangular sludge discharge port 2 is provided on the bottom surface of the sludge tank 1 along the axial direction. A particle size selection filter 3 is rotatably provided on the outer wall of the sludge tank 1 and is attached to the lower edge of the sludge discharge port 2. The particle size selection filter 3 is provided with particle size selection filter pores 16 arranged in ascending order of mesh size.

[0030] The stirring structure includes a rotating shaft 4 horizontally rotatably mounted on the opposite end wall of the sludge tank 1. Several rows of stirring shafts 5 are arranged axially around the side wall of the rotating shaft 4. The ends of the stirring shafts 5 are fixedly connected to scraper plates 6 that rub against the inner wall of the sludge tank 1.

[0031] Two adjacent scraper blades 6 are arranged radially in a staggered manner, and a sludge flow channel is formed through the gap between the two staggered scraper blades 6.

[0032] Arc-shaped guide seats 12 are fixedly connected to the outer walls on both sides of the sludge discharge outlet 2 of the sludge tank 1. Arc-shaped grooves are opened in the arc-shaped guide seats 12, and arc-shaped slide strips 13 are slidably arranged in the arc direction in the arc-shaped grooves. The two side walls of the filter screen are fixedly connected to the two arc-shaped slide strips 13 respectively.

[0033] At the bottom of the sludge tank 1, a drive motor 11 is fixedly connected to each of the arc-shaped slide bars 13. A gear 14 is fixedly connected to the output end of the drive motor 11. A rack 15 is fixedly connected to the lower surface of the arc-shaped slide bar 13. An avoidance hole is provided on the arc-shaped guide seat 12. The gear 14 passes through the avoidance hole and meshes with the rack 15.

[0034] A support frame is fixed to the bottom surface of sludge tank 1.

[0035] A sludge collection guide tube 10 is fixedly connected to the support frame below the sludge discharge outlet 2.

[0036] A reducer 7, which drives the rotating shaft 4, is fixedly connected to the outer wall of one end of the sludge tank 1.

[0037] The upper end of the sludge tank 1 is provided with a rectangular sludge inlet 8.

[0038] A sludge inlet 8 is fixedly attached to the upper edge of a sludge inlet tube 9, which is arranged in a tapering manner.

[0039] The working principle of this device is as follows:

[0040] The treated sludge is introduced into the sludge tank 1 through the sludge inlet cylinder 9. The particle size selection filter section 16 with the largest mesh size is aligned with the sludge discharge outlet 2. As the sludge is stirred by the stirring structure, the sludge that meets the current particle size falls into the sludge collection guide cylinder 10 through the sludge discharge outlet 2, thus discharging the sludge that meets the current particle size. Then, the drive motor 11 drives the particle size selection filter screen 3 to rotate, aligning the next mesh size particle size selection filter section 16 with the sludge discharge outlet 2, thus discharging the next sludge that meets the current particle size. This achieves the selection and classification of sludge according to different particle sizes, thus improving the application range of sludge treatment.

[0041] By placing the particle size selection filter 3 outside the sludge tank 1, when cleaning is required, the operator can directly use a water gun to rinse the filter from the outside, overcoming the need to enter the treatment tank in traditional technology, greatly improving cleaning efficiency and simplifying operation.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A sludge selector for wastewater treatment, characterized in that: The sludge tank (1) is horizontally arranged. The sludge tank (1) is equipped with a stirring structure. A rectangular sludge outlet (2) is opened on the bottom surface of the sludge tank (1) along the axial direction. A particle size selective filter screen (3) is rotatably arranged on the outer wall of the sludge tank (1) and fits against the lower edge of the sludge outlet (2). The particle size selective filter screen (3) is provided with particle size selective filter hole sections (16) arranged in an increasing mesh size.

2. The sludge selector for wastewater treatment according to claim 1, characterized in that: The stirring structure includes a rotating shaft (4) that is horizontally rotatably mounted on the opposite end wall of the sludge tank (1). Several rows of stirring shafts (5) are arranged axially around the side wall of the rotating shaft (4). The end of the stirring shaft (5) is fixedly connected to a scraper (6) that rubs against the inner wall of the sludge tank (1).

3. The sludge selector for wastewater treatment according to claim 2, characterized in that: The two adjacent scraper blades (6) along the axial direction are arranged radially in an alternating manner, and a sludge flow channel is formed through the gap between the two alternating scraper blades (6).

4. The sludge selector for wastewater treatment according to claim 3, characterized in that: Arc-shaped guide seats (12) are fixedly connected to the outer walls on both sides of the sludge discharge outlet (2). Arc-shaped grooves are opened in the arc-shaped guide seats (12), and arc-shaped slide strips (13) are slidably arranged in the arc-shaped grooves along the arc direction. The two side walls of the particle size selection filter (3) are fixedly connected to the two arc-shaped slide strips (13).

5. The sludge selector for wastewater treatment according to claim 4, characterized in that: The bottom of the sludge tank (1) is fixedly connected to each of the arc-shaped slide bars (13), and a gear (14) is fixedly connected to the output end of the drive machine (11). A rack (15) is fixedly connected to the lower surface of the arc-shaped slide bar (13). An avoidance hole is provided on the arc-shaped guide seat (12). The gear (14) passes through the avoidance hole and meshes with the rack (15).

6. The sludge selector for wastewater treatment according to claim 5, characterized in that: A support frame is fixed to the bottom surface of the sludge tank (1).

7. The sludge selector for wastewater treatment according to claim 6, characterized in that: A sludge collection guide tube (10) located below the sludge discharge outlet (2) is fixedly connected to the support frame.

8. The sludge selector for wastewater treatment according to claim 7, characterized in that: A reducer (7) for driving the rotating shaft (4) to rotate is fixedly connected to the outer wall of one end of the sludge tank (1).

9. The sludge selector for wastewater treatment according to claim 8, characterized in that: The upper end of the sludge tank (1) is provided with a rectangular sludge inlet (8).

10. The sludge selector for wastewater treatment according to claim 9, characterized in that: The upper edge of the sludge inlet (8) is fixed with a sludge inlet tube (9) that is arranged in a tapering manner.

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