Sand recovery device for sewage treatment
By designing a sand recovery device for sewage treatment, the water flow is used to rotate and separate the sludge and sand, the problems of high cost of existing equipment and inconvenient fine sand recycling are solved, and the low-cost recovery of sand and effective utilization of resources are achieved.
Patent Information
- Application Number
- CN202421619661.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing sand recycling equipment for sewage treatment is relatively high and fine sand is inconvenient to recover, resulting in waste of resources and high costs.
A sand recovery device for sewage treatment is designed, including a collection barrel, water inlet pipe, drain pipe, fixing frame and legs. The sludge and sand are separated by the rotation of the water flow, reducing equipment costs and simplifying recycling operations.
It realizes low-cost recycling of sand, reduces equipment costs, simplifies recycling operations, and avoids waste of sand resources.
Smart Images
Figure CN222829132U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of sewage treatment, and more specifically, to a sand recovery device for sewage treatment. Background Art
[0002] In the process of sewage treatment, flocculants need to be added to the sewage to accelerate the precipitation of particles in the sewage. At the same time, fine sand is added to the sewage as flocculation nuclei to accelerate precipitation. Since the amount of sewage treated is very large, the amount of fine sand used is also very large. In most companies, the fine sand is directly discharged with the sludge after use, resulting in a certain amount of waste.
[0003] The inventor of the present application proposes that since the flocculated sludge and sand are not tightly bound together, they can be separated by stirring the sewage to a certain extent, so the sand in the sludge can be separated and reused to reduce costs. However, if the existing stirring equipment is used, the equipment cost is high and the fine sand recovery is inconvenient, so a special equipment for recovering sand is urgently needed. Utility Model Content
[0004] In view of this, an embodiment of the present application provides a sand recovery device for sewage treatment to solve the technical problems in the prior art that the sand recovery equipment for sewage treatment is high in cost and the recovery of fine sand is inconvenient.
[0005] To achieve the above purpose, the technical solution adopted in this application is:
[0006] On the one hand, a sand recovery device for sewage treatment is provided, comprising:
[0007] The collecting bucket has an inverted cone-shaped bottom and a sand discharge valve is provided at the lowest point;
[0008] A water inlet pipe connected to the middle position of the collecting barrel in height and tangent to the circumference of the collecting barrel;
[0009] A drain pipe connected to the side wall of the top of the collecting barrel; the liquid in the collecting barrel is discharged from the drain pipe through overflow;
[0010] A fixing frame, comprising a connecting rod and a supporting rod; the connecting rod forms an angle with the water inlet pipe, and one end of the connecting rod is fixed to the free end of the water inlet pipe, and the other end is fixed tangentially to the circumference of the collecting bucket; one end of the supporting rod supports the connection between the connecting rod and the water inlet pipe, and the other end is fixed in affixed relationship with the conical bottom of the collecting bucket;
[0011] A plurality of legs are respectively supported on the bottom of the collection barrel and below the support rod.
[0012] In some embodiments, the drainage pipe is tangent to the circumference of the collection bucket and is in the opposite direction to the water inlet pipe.
[0013] In some embodiments, the support rod is made of angle steel, and both side edges of the support rod are respectively fitted and fixed to the conical bottom of the collection bucket.
[0014] In some embodiments, the number of the legs is three, and the three legs are distributed along three vertices of a triangle, wherein two of the legs are supported at the bottom of the collection bucket, and one of the legs is supported below the support rod.
[0015] In certain embodiments, an accommodating space for accommodating a receiving container is formed below the sand discharge valve and between the three legs.
[0016] In some embodiments, the sand discharge valve is a butterfly valve.
[0017] In some embodiments, a plurality of stirrups are provided around the outer periphery of the collecting barrel.
[0018] The beneficial effects of the sand recovery device for sewage treatment provided by the embodiment of the present application are as follows: compared with the prior art, the sand recovery device for sewage treatment in the embodiment of the present application is specifically used for recovering sand for sewage treatment; water containing flocculent sludge enters the collection bucket from the tangential water inlet pipe, and forms a rotation in the collection bucket, so that the sludge and the sand are gradually separated, and no power device and stirring structure are required, so that the equipment cost is low; after separation, the sand with higher density sinks to the bottom of the collection bucket, and the flocculent sludge with lower density is discharged from the drain pipe at the top of the collection bucket with the water flow; after settling for a period of time, the sand discharge valve is directly opened to discharge the sand at the bottom, and the recovery operation is more convenient;
[0019] The present application provides a connecting rod so that the water inlet pipe and the connecting rod form a triangle and are fixedly connected to the collection bucket; a support rod is also provided to support the water inlet pipe and the connecting rod, thereby ensuring that the water inlet pipe is firmly connected to the collection bucket, avoiding bending and shaking of the water inlet pipe, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0021] Figure 1 The main structure diagram of the sand recovery device for sewage treatment provided in the embodiment of the present application is shown in FIG. Figure 1 ;
[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the sand recovery device for sewage treatment from an overhead view.
[0023] Among them, the reference numerals in the figure are:
[0024] 1-collection bucket; 11-sand discharge valve; 2-water inlet pipe; 3-drainage pipe; 4-connecting rod; 5-support rod; 6-leg; 7-accommodation space; 8-hoops. DETAILED DESCRIPTION
[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0026] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0029] Please also read Figure 1 and Figure 2 Now, the sand recovery device for sewage treatment provided in the embodiment of the present application is described. A sand recovery device for sewage treatment comprises:
[0030] The collecting bucket has an inverted cone-shaped bottom and a sand discharge valve is provided at the lowest point;
[0031] The water inlet pipe is connected to the middle position of the collecting barrel in height and is tangent to the circumference of the collecting barrel;
[0032] A drain pipe is connected to the side wall of the top of the collection barrel; the liquid in the collection barrel is discharged from the drain pipe through overflow;
[0033] The fixing frame includes a connecting rod and a supporting rod; the connecting rod forms an angle with the water inlet pipe, and one end of the connecting rod is fixed to the free end of the water inlet pipe, and the other end is fixed tangentially to the circumference of the collecting bucket; one end of the supporting rod supports the connection between the connecting rod and the water inlet pipe, and the other end is fixed to the conical bottom of the collecting bucket;
[0034] A plurality of legs are respectively supported on the bottom of the collection barrel and below the support rod.
[0035] Compared with the prior art, the sand recovery device for sewage treatment in the embodiment of the present application is specifically used for recovering sand for sewage treatment; water containing flocculent sludge enters the collection bucket from the tangential water inlet pipe, and forms a rotation in the collection bucket, so that the sludge and the sand are gradually separated, and no power device and stirring structure are required, so that the equipment cost is low; after separation, the sand with higher density sinks to the bottom of the collection bucket, and the flocculent sludge with lower density is discharged from the drainage pipe at the top of the collection bucket along with the water flow; after settling for a period of time, the sand discharge valve is directly opened to discharge the sand at the bottom, and the recovery operation is more convenient;
[0036] The present application provides a connecting rod so that the water inlet pipe and the connecting rod form a triangle and are fixedly connected to the collection bucket; a support rod is also provided to support the water inlet pipe and the connecting rod, thereby ensuring that the water inlet pipe is firmly connected to the collection bucket, avoiding bending and shaking of the water inlet pipe, and extending the service life.
[0037] In this embodiment, the collection bucket is usually a cylinder with an open top, which mainly provides a certain space so that the water containing flocculent sludge can rotate. The bottom of the collection bucket is set in an inverted cone shape so that the settled sand can be discharged from the lowest sand discharge valve.
[0038] The water inlet pipe is tangent to the circumference of the collection barrel, so that the water flows into the collection barrel tangentially at a certain flow rate, thereby forming a rotation in the collection barrel, and the sand and sludge are separated under the action of the rotation. Since the density of sand is relatively large, it is easier to sink to the bottom, while the density of flocculent sludge is relatively small, so it is easier to be discharged from the drain pipe with the water flow. When in use, the water flow needs to enter the collection barrel through the water inlet pipe at a certain speed, so that the water flow cannot take away the sand with higher density from the drain pipe, but can take away the flocculent sludge with lower density from the drain pipe for the best. The depth of the collection barrel can also be adjusted to achieve that the water flow can take away the flocculent sludge without taking away the sand.
[0039] The water inlet pipe is connected to the middle position of the collection bucket at a height lower than the drain pipe, so that the water flow entering from the water inlet pipe can be fully rotated in the collection bucket before being discharged from the drain pipe, and will not be discharged directly from the drain pipe.
[0040] The drain pipe is connected to the side wall at the top of the collection barrel. As water flows continuously into the collection barrel from the water inlet pipe, the water level in the collection barrel continues to rise and eventually overflows from the drain pipe at the top.
[0041] Since the water inlet pipe is arranged tangentially along the collection bucket, the connection part with the collection bucket is too weak. Under the impact of water flow, the water inlet pipe is easy to shake and cause damage. This application uses connecting rods and support rods to reinforce the water inlet pipe to prevent the water inlet pipe from shaking and extend the life of the equipment.
[0042] Since the bottom of the collection bucket is in an inverted cone shape and is difficult to place, the present application provides multiple legs to support the collection bucket and support rods to ensure the overall stability of the equipment.
[0043] See also Figure 1 and Figure 2 As a specific implementation of the sand recovery device for sewage treatment provided in the present application, the drainage pipe is tangent to the circumference of the collection barrel and is opposite to the direction of the water inlet pipe.
[0044] In this embodiment, the drain pipe is in opposite directions to the water inlet pipe, so that the drain pipe and the water flow in the collection bucket rotate in opposite directions. The water flow in the collection bucket will not directly rush into the drain pipe, but will be discharged from the drain pipe entirely by overflow.
[0045] See also Figure 1 and Figure 2 As a specific implementation of the sand recovery device for sewage treatment provided in the present application, the support rod is made of angle steel, and the edges on both sides of the support rod are respectively fitted and fixed to the conical bottom of the collection bucket.
[0046] In this embodiment, the support rod is made of angle steel, which has greater strength and can better support the water inlet pipe.
[0047] In a specific implementation, the support rod is inverted on the conical bottom surface of the collection bucket, and the two side edges of the support rod are respectively welded and fixed to the conical bottom of the collection bucket, so that the connection between the support rod and the collection bucket is more secure.
[0048] See also Figure 1 and Figure 2 As a specific embodiment of the sand recovery device for sewage treatment provided in this application, the number of legs is three, and the three legs are distributed along the three vertices of the triangle, two of which are supported at the bottom of the collection bucket and one leg is supported under the support rod.
[0049] In this embodiment, three legs are distributed along the three vertices of the triangle, which can form a stable support for the entire device. Two legs are supported at the bottom of the collection bucket, and one leg is supported under the support rod, which can not only ensure the support of the collection bucket with the heaviest weight, but also make the water inlet pipe more stable.
[0050] In a specific implementation, the legs can be made of round tubes and directly welded to the bottom of the collection barrel and below the support rod.
[0051] See also Figure 1 and Figure 2 As a specific implementation of the sand recovery device for sewage treatment provided in the present application, a receiving space for accommodating a receiving container is formed below the sand discharge valve and between the three legs.
[0052] In this embodiment, the accommodating space can be used to place a container for receiving sand, and the sand discharge valve can be directly opened to discharge the sand into the container.
[0053] In a specific implementation, the height of the legs is set so that the sand discharge valve is more than 0.6 meters from the ground, and the distance between the two legs is more than 0.5 meters, so as to form an accommodation space. A cross bar can be set between the two legs to improve the stability of the three legs.
[0054] As a specific implementation of the sand recovery device for sewage treatment provided in the present application, the sand discharge valve is a butterfly valve.
[0055] See also Figure 1 As a specific implementation of the sand recovery device for sewage treatment provided in the present application, a plurality of stirrups are arranged around the outer periphery of the collecting barrel.
[0056] In this embodiment, stirrups are used to improve the strength of the collection barrel, so that the internal space of the collection barrel can be set larger.
[0057] In a specific implementation, steel bars may be used to tighten the outer circumference of the collection barrel to form stirrups.
[0058] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A sand recovery device for sewage treatment, characterized in that: include: The collecting bucket has an inverted cone-shaped bottom and a sand discharge valve is provided at the lowest point; A water inlet pipe connected to the middle position of the collecting barrel in height and tangent to the circumference of the collecting barrel; A drain pipe connected to the side wall of the top of the collecting barrel; the liquid in the collecting barrel is discharged from the drain pipe through overflow; A fixing frame, comprising a connecting rod and a supporting rod; the connecting rod forms an angle with the water inlet pipe, and one end of the connecting rod is fixed to the free end of the water inlet pipe, and the other end is fixed tangentially to the circumference of the collecting bucket; one end of the supporting rod supports the connection between the connecting rod and the water inlet pipe, and the other end is fixed in affixed relationship with the conical bottom of the collecting bucket; A plurality of legs are respectively supported on the bottom of the collection barrel and below the support rod.
2. The sand recovery device for sewage treatment according to claim 1, characterized in that: The drainage pipe is tangent to the circumference of the collection barrel and is in the opposite direction to the water inlet pipe.
3. The sand recovery device for sewage treatment according to claim 1, characterized in that: The support rod is made of angle steel, and the edges on both sides of the support rod are respectively fitted and fixed to the conical bottom of the collection bucket.
4. The sand recovery device for sewage treatment as claimed in claim 3, characterized in that: The number of the legs is three, and the three legs are distributed along the three vertices of the triangle, wherein two of the legs are supported on the bottom of the collection bucket, and one of the legs is supported below the support rod.
5. The sand recovery device for sewage treatment as claimed in claim 4, characterized in that: An accommodating space for accommodating a receiving container is formed below the sand discharge valve and between the three legs.
6. The sand recovery device for sewage treatment according to claim 1, characterized in that: The sand discharge valve is a butterfly valve.
7. The sand recovery device for sewage treatment according to claim 1, characterized in that: A plurality of stirrups are sleeved on the outer periphery of the collecting barrel.