Sewage pretreatment device

Abstract

The utility model relates to the technical field of sewage treatment, and particularly discloses a sewage pretreatment device, which is characterized in that a support frame comprises side beams which are arranged in pairs and are respectively fixed on the inner walls of the two sides of a sewage discharge ditch and a plurality of driven roll shafts of which the two ends are respectively and rotatably sleeved on the side beams; the driving part comprises bases arranged at the top ends of the side beams correspondingly, a driving roller shaft with the two ends hinged to the bases correspondingly, and a motor arranged on the outer side of one base and used for driving the driving roller shaft to rotate. The flexible filter screen is of an end-to-end closed-loop structure, and the flexible filter screen is wound outside the driving roll shaft and the driven roll shaft; the slag removal mechanism comprises an inclined scraper of which the top end is attached to the top of the front wall of the flexible filter screen, a C-shaped shell of which the bottom end is fixedly butted with the bottom end of the inclined scraper, and a slope guide plate fixed at the bottom of an inner cavity of the C-shaped shell; the problem that impurities attached to the filter screen are difficult to timely and efficiently remove when sewage is subjected to pre-filtration is well solved.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering.

[0003] Wastewater pretreatment units are indispensable equipment in the field of wastewater treatment. Wastewater typically undergoes pre-filtration in these units to intercept some impurities before entering downstream biological treatment units for further treatment. However, after intercepting impurities, some often remain on the filter screens of commonly used wastewater pretreatment units, making timely cleaning difficult. This leads to filter clogging, affecting the normal discharge of wastewater and ultimately limiting the efficiency of wastewater treatment. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater pretreatment device to solve the problem of difficulty in timely and efficient removal of impurities adhering to the filter screen during the current pre-filtration of wastewater.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewage pretreatment device, wherein the supporting frame includes a pair of side beams respectively fixed to the inner walls of both sides of a sewage ditch and a plurality of driven rollers rotatably sleeved at both ends to the side beams; the driving component includes a base respectively disposed at the top of the side beams, an active roller respectively hinged at both ends to the base, and a motor disposed outside one of the bases for driving the active roller to rotate; the flexible filter screen is a closed-loop structure with its ends connected, and the flexible filter screen is wrapped around the active roller and the driven roller; the slag removal mechanism includes an inclined scraper with its top end attached to the top of the front wall of the flexible filter screen, a C-shaped shell with its bottom end fixedly connected to the bottom end of the inclined scraper, and an inclined guide plate fixed to the bottom of the inner cavity of the C-shaped shell.

[0006] Preferably, the two side beams are fixedly connected to a slope panel at their bottom front sides.

[0007] Preferably, the front wall of the side beam is provided with a screw hole near the top, and the two ends of the rear wall of the inclined scraper are fixedly connected to triangular plates. The rear end of the outer side wall of the triangular plates is provided with a connecting plate that is fixedly connected to one of the screw holes by bolts.

[0008] Preferably, wing plates are fixed to the outer sides of the front and rear walls of the side beam, and the wing plates are provided with a plurality of mounting holes along the vertical upper edge.

[0009] Preferably, the top ends of the two side beams are respectively provided with slots that slide vertically and engage with both ends of the drive roller shaft. A lead screw is rotatably sleeved on the middle part of the bottom surface of the base. Support plates are vertically fixed on the outer side walls of the side beams corresponding to the lower side of the bottom end of the slots. The middle part of the support plates is provided with two screw holes that are threaded and matched with the lead screw.

[0010] Preferably, the base bottom surface is fitted with guide rods at the front and rear sides of the lead screw, and the support plate is provided with guide holes for sliding and matching the guide rods at the front and rear sides of the screw hole.

[0011] Preferably, a prism is fixedly connected to the top end of the lead screw, and a short column that is rotatably sleeved with the bottom surface of the base is fixedly connected to the top end of the prism.

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

[0013] In this utility model, a wastewater pretreatment device is provided. The driving component drives a closed-loop flexible filter screen to reciprocate through an active roller shaft. Impurities attached to the surface of the flexible filter screen are scraped off when they pass through an inclined scraper. The scraped impurities slide along the inclined scraper into the C-shaped housing and are discharged from one end of the C-shaped housing along the inclined guide plate. This effectively solves the problem of difficulty in timely and efficient removal of impurities attached to the filter screen during wastewater pre-filtration. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the support frame of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the driving component of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the lead screw of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the slag removal mechanism of this utility model.

[0019] In the diagram: 1-Support frame; 1.1-Side beam; 1.1.1-Slot; 1.1.2-Screw hole one; 1.1.3-Wing plate; 1.2-Driven roller shaft; 1.3-Support plate; 1.3.1-Screw hole two; 1.3.2-Guide hole; 1.4-Sloping panel;

[0020] Drive components; 2.1-Drive roller shaft; 2.2-Base; 2.3-Motor; 2.4-Screw; 2.4.1-Pyramid; 2.4.2-Short column; 2.5-Guide rod;

[0021] 3- Flexible filter screen;

[0022] 4-Slag removal mechanism; 4.1-Inclined scraper; 4.2-C-shaped shell; 4.3-Inclined guide plate; 4.4-Triangular plate; 4.5-Connecting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a sewage pretreatment device, wherein the support frame 1 includes paired side beams 1.1 respectively fixed to the inner walls of both sides of a sewage ditch, and a plurality of driven rollers 1.2 rotatably sleeved at both ends to the side beams 1.1; wing plates 1.1.3 are fixed to the outer sides of the front and rear walls of the side beams 1.1 respectively, and the wing plates 1.1.3 are provided with a plurality of mounting holes along the vertical direction, which facilitate the use of bolts to firmly position and fix the side beams 1.1 on both sides to the inner walls of the sewage ditch. A slope panel 1.4 is fixedly connected to the front side of the bottom end of the two side beams 1.1. Screw holes 1.1.2 are respectively provided on the front wall of the side beams 1.1 near the top. The top of each of the two side beams 1.1 is provided with a groove 1.1.1 along the vertical direction. The outer side wall of the side beam 1.1 is vertically fixed with a support plate 1.3 at the position corresponding to the bottom of the groove 1.1.1. The support plate 1.3 is provided with a screw hole 1.3.1 in the middle, and the support plate 1.3 is provided with guide holes 1.3.2 at the front and rear sides of the screw hole 1.3.1.

[0025] The driving component 2 includes a base 2.2 respectively located at the top of the side beam 1.1, an active roller 2.1 with both ends hinged to the base 2.2, and a motor 2.3 located outside one of the bases 2.2 for driving the active roller 2.1 to rotate. The two ends of the active roller 2.1 are vertically slidably engaged in slots 1.1.1. A lead screw 2.4 is rotatably sleeved on the middle part of the bottom surface of the base 2.2, and guide rods 2.5 are respectively sleeved on the bottom surface of the base 2.2 at positions before and after the lead screw 2.4. A prism 2.4.1 is fixedly connected to the top of the lead screw 2.4, and a short column 2.4.2 is fixedly connected to the top of the prism 2.4.1 and rotatably sleeved on the bottom surface of the base 2.2. The lead screw 2.4 is threaded into screw hole 1.3.1, and the guide rod 2.5 is slidably sleeved into guide hole 1.3.2.

[0026] The flexible filter 3 is a closed-loop structure with its ends connected, and the flexible filter 3 is wrapped around the active roller 2.1 and the driven roller 1.2.

[0027] The slag removal mechanism 4 includes an inclined scraper 4.1 with its top end attached to the top of the front wall of the flexible filter screen 3, a C-shaped housing 4.2 with its bottom end fixedly connected to the bottom end of the inclined scraper 4.1, and an inclined guide plate 4.3 fixed to the bottom of the inner cavity of the C-shaped housing 4.2. Triangular plates 4.4 are fixedly connected to both ends of the rear wall of the inclined scraper 4.1, and a connecting plate 4.5 is provided at the rear end of the outer wall of the triangular plate 4.4 and is fixedly connected to the screw hole 1.1.2 with bolts.

[0028] In summary, when sewage flows through the flexible filter screen 3 in the drainage ditch, some impurities are intercepted by the flexible filter screen, and some of these impurities adhere to the surface of the flexible filter screen 3. The motor 2.3 drives the active roller 2.1 to rotate, causing the flexible filter screen 3 to operate under the support of the driven roller 1.2. When the impurities adhering to the surface of the flexible filter screen 3 pass through the inclined scraper 4.1, they are scraped off and slide down the inclined scraper 4.1 into the inner cavity of the C-shaped housing 4.2. Subsequently, they slide down the inclined guide plate 4.3 and are discharged from one end of the C-shaped housing 4.2. This achieves the purpose of preventing the filter screen from being blocked by impurities.

[0029] In addition, the prism 2.4.1 allows for easy use of a wrench to screw the lead screw 2.4 as a whole, thereby adjusting the up-and-down movement of the base 2.2 and thus achieving the purpose of adjusting the tension of the flexible filter screen 3.

[0030] It should be noted that in this article, relational terms such as first and second are only used to refer to...

[0031] Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater pretreatment device, characterized in that, include: The support frame (1) includes a pair of side beams (1.1) that are respectively fixed to the inner walls of the two sides of the sewage ditch, and a plurality of driven rollers (1.2) that are respectively rotatably sleeved on the side beams (1.1) at both ends. The driving component (2) includes a base (2.2) respectively disposed at the top of the side beam (1.1), an active roller (2.1) with both ends respectively hinged to the base (2.2), and a motor (2.3) disposed on the outside of one of the bases (2.2) for driving the active roller (2.1) to rotate. The flexible filter (3) is a closed-loop structure with its ends connected, and the flexible filter (3) is wrapped around the active roller (2.1) and the driven roller (1.2); The slag removal mechanism (4) includes an inclined scraper (4.1) with its top end attached to the top of the front wall of the flexible filter screen (3), a C-shaped shell (4.2) with its bottom end fixedly connected to the bottom end of the inclined scraper (4.1), and an inclined guide plate (4.3) fixed to the bottom of the inner cavity of the C-shaped shell (4.2).

2. The wastewater pretreatment device according to claim 1, characterized in that: The two side beams (1.1) are fixedly connected to the front side of their bottom ends by a slope panel (1.4).

3. The wastewater pretreatment device according to claim 1, characterized in that: The front wall of the side beam (1.1) is provided with screw holes (1.1.2) near the top. The two ends of the rear wall of the inclined scraper (4.1) are fixedly connected to triangular plates (4.4). The rear end of the outer wall of the triangular plate (4.4) is provided with a connecting plate (4.5) which is fixedly connected to the screw hole (1.1.2) by bolts.

4. The wastewater pretreatment device according to claim 1, characterized in that: The side beam (1.1) has wing plates (1.1.3) fixed on the outer sides of its front and rear walls respectively, and the wing plates (1.1.3) have several mounting holes along their vertical direction.

5. A wastewater pretreatment device according to claim 1, characterized in that: The top ends of the two side beams (1.1) are respectively provided with slots that slide vertically and engage with both ends of the drive roller (2.1). 1.1.1), the base (2.2) has a screw rod (2.4) rotatably sleeved in the middle of its bottom surface. The side beam (1.1) has a support plate (1.3) vertically fixed at the position corresponding to the lower side of the bottom end of the slot (1.1.1) on its outer side wall. The support plate (1.3) has two screw holes (1.3.1) in the middle of its middle part that are threaded and matched with the screw rod (2.4).

6. A wastewater pretreatment device according to claim 5, characterized in that: The base (2.2) has guide rods (2.5) sleeved on the bottom surface of the screw (2.4) at the front and rear sides respectively. The support plate (1.3) has guide holes (1.3.2) that are slidably sleeved on the front and rear sides of the screw hole (1.3.1) respectively.

7. A wastewater pretreatment device according to claim 5, characterized in that: The top end of the lead screw (2.4) is fixedly connected to a prism (2.4.1), and the top end of the prism (2.4.1) is fixedly connected to a short column (2.4.2) that is rotatably sleeved with the bottom surface of the base (2.2).

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