A complete device for treating sewage from casting demoulding

Abstract

The utility model relates to the field of sewage treatment, concretely relates to a foundry cast demoulding sewage treatment complete device, including the deslagging pool, the outer wall of deslagging pool is fixedly installed with the connecting piece through the fixed assembly, the inner wall of connecting piece is fixedly installed with the border, the filter installation subassembly, the filter installation subassembly includes the outer filter piece. Through the design that the outer filter piece inside four around inclined extension, the inner filter piece is fixed in the lowest point of outer filter piece middle part, can the impurity of intercepting automatic guide filter subassembly center area, and not accumulation in the filter piece edge or through -hole department, reduced the probability that the impurity blocked the filter hole, prolonged filter subassembly's continuous working time, reduced the equipment downtime frequency because of the cleaning block, promoted the continuity of pre -treatment stage, simultaneously, the filter installation subassembly realizes the connection with the border, the sealing ring and the encircling magnet in the jack are formed with the magnetic attraction fixed with the positioning jack, need not to help the tool to complete the installation and dismounting of filter subassembly.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically to a complete set of wastewater treatment equipment for casting demolding. Background Technology

[0002] The process of demolding castings generates a large amount of wastewater containing solid impurities and suspended particles. If this wastewater is discharged directly or enters the subsequent treatment system without effective pretreatment, it will seriously affect the ecological environment, equipment operation, and treatment efficiency. Therefore, the pretreatment stage of casting demolding wastewater treatment is a key link in ensuring the stable and efficient operation of the overall treatment process.

[0003] The existing filtration devices commonly used in the pretreatment of casting demolding wastewater mostly adopt flat filter screens or filter structures with a single inclined angle. The pore size of the filter screen is usually fixed and lacks targeted design. Large particulate impurities contained in the casting demolding wastewater tend to accumulate on the surface of the filter screen, especially in areas with low flow velocity such as the edge of the filter screen and around the through holes. Impurities tend to form a dense accumulation layer, which quickly blocks the filter channels. This requires frequent interruptions of the wastewater treatment process for manual cleaning, reducing the continuity of work. Utility Model Content

[0004] The purpose of this utility model is to provide a complete set of equipment for wastewater treatment during casting demolding. By optimizing the structural design of the filter components, improving the installation and fixing method, and strengthening the sealing and protection system, it solves the problem of easy clogging of the filter devices in the prior art, which reduces the continuity of operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a complete set of equipment for treating wastewater from casting demolding, comprising... A slag discharge tank, wherein a connector is fixedly installed on the outer wall of the slag discharge tank by a fixing component, and a frame is fixedly installed on the inner wall of the connector; A filter mounting assembly includes an outer filter element, an inner filter element fixedly connected to the inner side of the outer filter element, and multiple sets of positioning pins vertically fixedly connected to the lower periphery of the outer filter element. An insertion hole is provided on the outer side of the frame, and the positioning pins are inserted into the insertion hole. A sealing ring is fixedly connected to the bottom end of the inner wall of the insertion hole, and the sealing ring magnetically engages with the positioning pins. A magnet is fixedly connected around the inner wall of the insertion hole, and the outer side of the magnet is attached to the outer side of the positioning pin.

[0006] Preferably, the connector includes a connecting rod, a fixing frame is fixedly connected to the bottom of the connecting rod, the outer periphery of the fixing frame is attached to the inner wall of the slag discharge tank, a sealing gasket is provided on the outer side of the fixing frame, and the upper part of the connecting rod is fixedly connected to the fixing component.

[0007] Preferably, the fixing component includes a guide post, which is horizontally fixedly connected to the outside of the connecting rod. A clamping plate is slidably connected to the outside of the guide post. A gasket that fits against the outside of the slag discharge tank is fixedly connected to the lower part of the clamping plate near the connecting rod. A locking member is provided through the inner wall of the clamping plate, and the locking member is threadedly connected to the inner wall of the guide post.

[0008] Preferably, the outer filter element extends downwards on all four sides of its inner side.

[0009] Preferably, the inner filter element extends downwards at all four sides of its outer perimeter, and the middle part of the inner filter element is set as a plane.

[0010] Preferably, the inner filter element is fixedly connected to the lowest point in the middle of the outer filter element, and the upper surface of the inner filter element is flush with the upper surface of the outer filter element.

[0011] Preferably, the inner side of the frame is formed as an inclined surface that mates with the surface of the outer filter element.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention, through its design of extending inclinedly around the inner perimeter of the outer filter element and fixing the inner filter element to the lowest point in the center of the outer filter element, can automatically guide intercepted impurities to the central area of ​​the filter assembly, rather than accumulating at the edges or through holes of the filter element. This reduces the probability of impurities clogging the filter holes, extends the continuous working time of the filter assembly, reduces the frequency of equipment downtime due to cleaning blockages, and improves the continuity of the pretreatment stage. At the same time, the filter installation assembly is connected to the frame, and the sealing ring and surrounding magnet in the insertion hole form a magnetic attraction with the positioning pin, allowing the filter assembly to be installed and disassembled without the need for tools. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in this utility model, showing its installation state. Figure 2 This is a top view of the three-dimensional structure of the overall device in this utility model; Figure 3 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 4 This is a three-dimensional structural breakdown diagram of the overall device in this utility model; Figure 5This is a three-dimensional structural diagram of the sealing ring and magnet in this utility model; Figure 6 This utility model Figure 4 A magnified schematic diagram of the three-dimensional structure at point A in the middle.

[0015] Legend: 1. Slag discharge tank; 2. Fixing components; 21. Guide column; 22. Clamping plate; 23. Locking component; 24. Gasket; 3. Connecting component; 31. Connecting rod; 32. Fixing frame; 4. Frame; 5. Filter installation components; 51. External filter element; 52. Internal filter element; 53. Positioning pin; 54. Insertion hole; 55. Sealing ring; 56. Magnet. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 2 - Figure 4 The illustrated complete set of wastewater treatment equipment for casting demolding includes a slag discharge tank 1 and a filter installation assembly 5, specifically: The outer wall of the slag discharge tank 1 is fixedly installed with the connector 3 by the fixing component 2. The slag discharge tank 1 receives the casting demolding wastewater, providing a stable treatment environment for the subsequent filter components and preventing the wastewater from directly entering the subsequent aeration and sedimentation stages, which could lead to pipe blockage or overload of the treatment load. The inner wall of the connector 3 is fixedly installed with the frame 4, which provides a stable installation interface for the components. At the same time, the frame 4 is made of a rigid material such as stainless steel, which can withstand the weight of the filter components and the impact of water flow. The filter assembly 5 includes an outer filter element 51. The inner sides of the outer filter element 51 extend downwards at all four sides. On the one hand, the filter screen aperture is conventionally designed to be 1-3mm, which can be adjusted according to the particle size of wastewater impurities to intercept large particles such as solid particles with a diameter >1mm. On the other hand, the inclined surface uses gravity to guide wastewater to converge towards the center, while guiding the intercepted impurities to the area where the inner filter element 52 and the outer filter element 51 are connected, avoiding the accumulation of impurities at the edge of the filter element to block the filter screen holes, thus extending the continuous filtration time. The inner filter element 52 is fixedly connected to the inner side of the outer filter element 51. The outer sides of the inner filter element 52 extend downwards at all four sides, forming a V-shaped area between it and the outer filter element 51. Impurities will converge into the V-shaped area under the action of gravity and flushing, forming a concentrated impurity accumulation area, reducing the probability of impurities clogging the filter holes, extending the continuous working time of the filter assembly, reducing the frequency of equipment downtime due to cleaning and clogging, and improving the continuity of the pretreatment stage. The middle part of the inner filter element 52 is set as a plane.

[0018] like Figure 4 and Figure 5As shown, the inner filter element 52 is fixedly connected to the lowest point of the middle of the outer filter element 51. The upper surface of the inner filter element 52 is flush with the upper surface of the outer filter element 51. Multiple sets of positioning pins 53 are vertically fixedly connected to the lower periphery of the outer filter element 51. After the positioning pins 53 are inserted into the insertion holes 54 of the frame 4, the installation position of the component can be quickly determined. At the same time, they can withstand the lateral force of the filter component under the impact of sewage, prevent the filter element from deforming due to the impact of water flow, and ensure the long-term stability of the filter structure. Insertion holes 54 are provided on the outer side of the frame 4. The positioning pin 53 is inserted into the socket 54. A sealing ring 55 is fixedly connected to the bottom of the inner wall of the socket 54. The sealing ring 55 and the positioning pin 53 are magnetically attracted to each other. The positioning pin 53 is made of a metal that can be magnetically attracted, such as an iron alloy. It forms a magnetic attraction with the sealing ring 55 and the magnet 56 in the socket 54. The filter assembly can be fixed without bolts, and it is also easy to disassemble, clean or replace later. The inner wall of the socket 54 is fixedly connected with the magnet 56. The outer side of the magnet 56 is attached to the outer side of the positioning pin 53.

[0019] like Figure 1 - Figure 3 As shown, the connector 3 includes a connecting rod 31, which horizontally connects the frame 4 and the fixing component 2. The distance between the frame 4 and the inner wall of the slag discharge tank 1 is adjusted by its own length to ensure that the frame 4 is in the optimal filtration position in the slag discharge tank. A fixing frame 32 is fixedly connected to the bottom of the connecting rod 31. The outer periphery of the fixing frame 32 is attached to the inner wall of the slag discharge tank 1. A sealing gasket is provided on the outer side of the fixing frame 32 to fill the tiny gap between the fixing frame 32 and the tank wall, preventing sewage from leaking from the gap to the outside of the slag discharge tank. The upper part of the connecting rod 31 is fixedly connected to the fixing component 2.

[0020] like Figure 4 and Figure 6As shown, the fixing component 2 includes a guide post 21, which provides a horizontal sliding track for the clamping plate 22. This facilitates adjusting the position of the clamping plate 22 according to the wall thickness of the slag discharge tank 1, adapting to slag discharge tanks with different wall thicknesses. The guide post 21 is horizontally fixedly connected to the outside of the connecting rod 31. The clamping plate 22 is slidably connected to the outside of the guide post 21. By sliding along the guide post 21, the clamping plate 22 cooperates with the connecting rod 31 to form a clamping force from both the inside and outside of the slag discharge tank 1, thus fixing the connecting piece 3, the frame 4, and the filter installation component 5 as a whole onto the slag discharge tank 1, preventing the components from being impacted by water flow. The lower part of the clamping plate 22, near the connecting rod 31, is fixedly connected to a gasket 24 that fits against the outside of the slag discharge tank 1. A locking element 23 is installed through the inner wall of the clamping plate 22. The locking element 23 is threadedly connected to the inner wall of the guide column 21. After tightening, the clamping plate 22 can be fixed in a preset position to prevent the clamping plate 22 from sliding due to vibration or water flow impact, ensuring long-term stable clamping force. The locking element 23 consists of a screw and a handle, which can be manually tightened or loosened without professional tools, reducing the difficulty of installation and maintenance. The locking element 23 is threadedly connected to the inner wall of the guide column 21. The inner side of the frame 4 is opened as an inclined surface that matches the surface of the outer filter element 51. Through water flow impact, the frame 4 and the outer filter element 51 are tightly fitted after installation, eliminating the gap between them and preventing unfiltered sewage from leaking through the gap, ensuring that all sewage is filtered.

[0021] When the wastewater enters the slag discharge tank 1 through the inlet pipe, the device enters the filtration stage. The wastewater comes into contact with the outer filter element 51 and the inner filter element 52. The inclined structure of the outer filter element 51 and the inner filter element 52 guides the wastewater to converge towards the center. At the same time, the filter screen with a pore size of 1-3mm intercepts large particulate impurities in the wastewater, such as residual solid waste generated by casting demolding wastewater. The inclined surface design not only prolongs the residence time of the wastewater on the filter screen and improves the interception efficiency, but also uses gravity to push the intercepted large particulate impurities towards the center, avoiding the accumulation of impurities on the edge of the filter screen and clogging the filter holes. At the same time, a concentrated impurity accumulation area is formed between the outer filter element 51 and the inner filter element 52, which not only avoids the impurities from scattering and clogging the filter screen, but also provides convenience for subsequent cleaning.

[0022] During the filtration process, the sealing gasket on the outside of the fixed frame 32 prevents sewage from leaking from the gap between the connector 3 and the inner wall of the sludge discharge tank 1; the sealing ring 55 and magnet 56 in the socket 54 ensure that the positioning pin 53 and the socket 54 are sealed and fitted, preventing unfiltered sewage from bypassing the filter installation assembly 5 through the gap and flowing directly into the bottom of the sludge discharge tank 1.

[0023] When the filter installation assembly 5 needs to be cleaned or impurities need to be removed, the device's convenient disassembly and assembly design allows for quick maintenance without the need for complicated tools. When disassembling the filter installation assembly 5, simply pull the outer filter element 51 upwards. The positioning pin 53 will disengage from the magnetic fixation of the insertion hole 54 under external force, and the entire filter installation assembly 5 can be removed from the frame 4 without disassembling the fixing component 2 or the connector 3.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A complete set of equipment for treating wastewater from casting demolding, characterized in that: include The slag discharge tank (1) has a connector (3) fixedly installed on its outer wall by a fixing component (2), and a frame (4) fixedly installed on the inner wall of the connector (3). The filter installation assembly (5) includes an outer filter element (51), an inner filter element (52) is fixedly connected to the inner side of the outer filter element (51), and multiple sets of positioning pins (53) are vertically fixedly connected to the lower periphery of the outer filter element (51). An insertion hole (54) is provided on the outer side of the frame (4). The positioning pin (53) is inserted into the insertion hole (54). A sealing ring (55) is fixedly connected to the bottom of the inner wall of the insertion hole (54). The sealing ring (55) is magnetically attracted to the positioning pin (53). A magnet (56) is fixedly connected around the inner wall of the insertion hole (54). The outer side of the magnet (56) is attached to the outer side of the positioning pin (53).

2. The complete set of equipment for wastewater treatment during casting demolding according to claim 1, characterized in that: The connector (3) includes a connecting rod (31), a fixing frame (32) is fixedly connected to the bottom of the connecting rod (31), the outer periphery of the fixing frame (32) is attached to the inner wall of the slag discharge tank (1), a sealing gasket is provided on the outer side of the fixing frame (32), and the upper part of the connecting rod (31) is fixedly connected to the fixing component (2).

3. The complete set of equipment for wastewater treatment during casting demolding according to claim 2, characterized in that: The fixing component (2) includes a guide post (21), which is horizontally fixed to the outside of the connecting rod (31). A clamping plate (22) is slidably connected to the outside of the guide post (21). A gasket (24) that fits against the outside of the slag discharge tank (1) is fixedly connected to the lower part of the clamping plate (22) near the connecting rod (31). A locking member (23) is provided through the inner wall of the clamping plate (22), and the locking member (23) is threadedly connected to the inner wall of the guide post (21).

4. The complete set of equipment for wastewater treatment during casting demolding according to claim 1, characterized in that: The outer filter element (51) extends downwards on all four sides of its inner side.

5. A complete set of equipment for treating wastewater from casting demolding according to claim 1, characterized in that: The inner filter element (52) extends downwards around its outer perimeter, and the middle part of the inner filter element (52) is set as a plane.

6. A complete set of equipment for treating wastewater from casting demolding according to claim 1, characterized in that: The inner filter element (52) is fixedly connected to the lowest point in the middle of the outer filter element (51), and the upper surface of the inner filter element (52) is flush with the upper surface of the outer filter element (51).

7. A complete set of equipment for treating wastewater from casting demolding according to claim 1, characterized in that: The inner side of the frame (4) is provided as an inclined surface that matches the surface of the outer filter element (51).

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