Sludge storage bin
By designing an intermittent compression and quantitative drainage structure for the sludge storage silo, the problem of low dewatering efficiency before sludge storage was solved, achieving efficient dewatering and storage, and reducing the footprint and risk of secondary pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-03
AI Technical Summary
Existing sludge storage silos do not effectively dewater the sludge before storage, resulting in low dewatering efficiency, large footprint, and the risk of secondary pollution.
A sludge storage bin was designed to dewater sludge through intermittent squeezing and quantitative drainage, combined with regular cleaning of the drainage holes, to achieve efficient dewatering and storage of sludge.
It achieves efficient sludge dewatering, reduces the footprint, and lowers the risk of secondary pollution.
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Figure CN224077227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sludge treatment, and in particular to a sludge storage bin. Background Technology
[0002] With the increasing discharge of urban industrial wastewater and domestic sewage, the volume of sewage treatment is also growing, leading to a sharp increase in sludge production. While using physicochemical and biological methods to treat sewage, a large amount of excess sludge is generated. After dewatering and drying, the sludge from sewage treatment plants needs to be transported off-site for disposal. The main methods for sludge disposal are landfill, agricultural use, drying, and incineration. Currently, most sewage treatment plants only have sludge storage areas. If the sludge cannot be transported off-site for timely disposal, it can easily cause secondary pollution. Therefore, it is necessary to temporarily store the sludge before transporting it off-site, requiring a sludge storage silo.
[0003] Existing sludge storage silos typically have storage functions, but the sludge is not dewatered before storage. Current dewatering methods mostly use large-area natural drying, which occupies a large area, but the vertical sludge thickness cannot be too thick, resulting in low dewatering efficiency and making it unsuitable for dewatering large amounts of sludge.
[0004] Based on this, this application provides a sludge storage bin. Summary of the Invention
[0005] (I) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sludge storage bin, including a bin body, the lower end of which is supported by support legs, a top cone installed at the upper end of the bin body, an inlet in the middle of the top cone, a squeezing port corresponding to the inlet position built into the upper half of the bin body, a drainage module located to the left of the squeezing port connected to a discharge pipe on the left side wall of the bin body, a squeezing module sliding up and down inside the squeezing port, a support module located inside the bin body for pushing the squeezing module to move up and down, and an outlet installed at the lower middle of the bin body.
[0007] The right side wall of the silo is equipped with an external ladder, the inner side wall of the silo is equipped with an internal ladder, the upper perimeter of the top cone is equipped with a guardrail, and the interior of the silo is reinforced with a frame structure.
[0008] The lower end of the inlet is symmetrically equipped with repositionable sealing plates on both the left and right sides.
[0009] The drainage module includes a drainage plate with movable parts symmetrically installed on the left end of the drainage plate. The movable parts are horizontally slidably set on the extrusion port. Drainage holes are evenly opened on the drainage plate. Brushes for piercing the drainage holes are installed on the connector. The connector is fixedly installed in the extrusion port. The drainage plate is located in the through-hole opened on the left side of the extrusion port. The drainage part communicating with the through-hole is fixedly installed on the left side of the upper end of the chamber.
[0010] The left outlet of the drainage component is connected to the upper end of the discharge pipe.
[0011] The extrusion module includes a sliding plate that slides up and down inside the extrusion port. The sliding plate has symmetrical flow grooves on the left and right sides. Inside the flow grooves, there are symmetrically rotating opening and closing plates. A locking component that works with the opening and closing plates is set in a hidden groove in the sliding plate. An unlocking block located below the locking component is fixedly installed at the lower end of the extrusion port.
[0012] The opening and closing plate consists of a plate body and a rotating shaft. The rotating shaft is rotatably disposed in the flow groove and is fixedly connected to one end of the plate body.
[0013] The locking component includes a straightening block, which is horizontally slidably disposed in a hidden groove and is elastically connected to the hidden groove. A pressing block, which is used in conjunction with the straightening block for pressing, is vertically slidably disposed in the hidden groove. The upper end face of the pressing block is elastically connected to the hidden groove. The inner slope of the pressing block gradually slopes outward from top to bottom. The positions of the pressing block and the unlocking block are corresponding.
[0014] The support module includes a cylinder, which is installed inside the chamber via a base. A support block is installed at the top end of the cylinder, and a connecting rod connects the support block to the sliding plate. A flow aid component is provided at the upper end of the support block.
[0015] The flow-aiding component includes a push rod, the lower end of which is slidably disposed in a built-in groove in the support block, and the lower end of the push rod is elastically connected to the built-in groove. The upper end of the push rod is connected to the inner side of the flow-aiding plate through a pin.
[0016] (ii) Beneficial effects
[0017] The present invention discloses a sludge storage bin. Before sludge storage, the sludge is subjected to intermittent squeezing and drainage. The amount of sludge input intermittently is a certain value. After the sludge is quantitatively measured, it enters the squeezing port and is subjected to spatial compression squeezing to complete the dewatering operation. The drainage holes for dewatering are cleaned and punctured regularly to maintain the drainage effect. After squeezing and dewatering, the sludge falls into the bin for storage. The present invention has a small footprint and a high dewatering effect. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the structure of this application;
[0020] Figure 2 This is an overall sectional view of this application;
[0021] Figure 3 This application Figure 2 A partial schematic diagram;
[0022] Figure 4 This application Figure 3 A magnified view of the area at point X;
[0023] Figure 5 This application Figure 3 A magnified view of the area at point Y. Detailed Implementation
[0024] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.
[0025] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.
[0026] like Figures 1 to 5 As shown, a sludge storage bin includes a bin body 1. The lower end of the bin body 1 is supported by support legs 2. A top cone is installed at the upper end of the bin body 1. An inlet 3 is provided in the middle of the top cone. A squeezing port 4 corresponding to the position of the inlet 3 is built into the upper half of the bin body 1. A drainage module 5 located on the left side of the squeezing port 4 is connected to a discharge pipe 50 provided on the left side wall of the bin body 1. A squeezing module 6 is slidably installed inside the squeezing port 4. A support module 7 located inside the bin body 1 is used to push the squeezing module 6 to move up and down. An outlet 8 is installed in the middle of the lower end of the bin body 1.
[0027] In actual operation, sludge is intermittently transported from inlet 3 to the squeezing port 4 in the silo 1. The squeezing module 6 is pushed up by the support module 7 to squeeze out the sewage in the sludge in the squeezing port 4. The squeezed sewage is discharged from the discharge pipe 50 after passing through the drainage module 5.
[0028] like Figures 1 to 2As shown, an external ladder 9 is installed on the right side wall of the chamber 1, allowing access to the top cone position by climbing the external ladder 9. An internal ladder 10 is installed on the inner side wall of the chamber 1, allowing access to the interior of the chamber 1 by climbing the internal ladder 10. A guardrail 11 is installed around the upper edge of the top cone to protect the safety of climbers. The interior of the chamber 1 is reinforced with a frame structure 12 to enhance the stability of the structure.
[0029] like Figure 3 As shown, the left and right sides of the lower end of the inlet 3 are symmetrically and rotatably equipped with resettable sealing plates 31. The sludge is intermittently transported from the inlet 3 to the squeezing port 4 in the chamber 1. After the intermittent transport is completed, the sealing plates 31 are closed.
[0030] like Figures 2 to 4 As shown, the drainage module 5 includes a drainage plate 51. Movable parts are symmetrically installed on the left end of the drainage plate 51. The movable parts are horizontally slidably arranged on the extrusion port 4. Drainage holes 52 are evenly opened on the drainage plate 51. Brush bristles 53 for piercing the drainage holes 52 are installed on the connector 54. The connector 54 is fixedly installed in the extrusion port 4. The drainage plate 51 is located in the through-hole 55 opened on the left side of the extrusion port 4. The drainage component 56, which communicates with the through-hole 55, is fixedly installed on the left side of the upper end of the chamber body 1. The left outlet of the drainage component 56 is connected to the upper end of the discharge pipe 50.
[0031] In actual operation, after the sludge is quantitatively transported into the squeezing port 4, the squeezing module 6 is pushed up by the support module 7, thereby squeezing the sewage in the sludge in the squeezing port 4 out from the position of the drainage plate 51 (since the sealing plate 31 has sealed the lower end of the inlet 3 and the squeezing module 6 is in a sealed state, when the sludge is squeezed by the squeezing module 6, the movable drainage plate 51 is squeezed and moves to the left. At this time, the bristles 53 are separated from the drainage hole 52, which is conducive to the discharge of sewage). After a batch of sludge is squeezed, the squeezing module 6 is lowered to the lowest position. At this time, the squeezing module 6 is opened (the sludge after squeezing can be transported downward from the squeezing module 6), and the drainage plate 51 returns to its original position under the action of elasticity. The bristles 53 poke open the residual sludge in the drainage hole 52 to prevent blockage.
[0032] like Figure 3 , Figure 5 As shown, the extrusion module 6 includes a sliding plate 61, which is slidably disposed inside the extrusion port 4. A flow groove 62 is symmetrically opened on the sliding plate 61, and an opening and closing plate 63 is symmetrically rotatably disposed inside the flow groove 62. A locking component 64 that works in conjunction with the opening and closing plate 63 is disposed in a hidden groove opened in the sliding plate 61. An unlocking block 65 located below the locking component 64 is fixedly installed at the lower end of the extrusion port 4. The opening and closing plate 63 is composed of a plate body and a rotating shaft. The rotating shaft is rotatably disposed in the flow groove 62 and is fixedly connected to one end of the plate body.
[0033] like Figure 5 As shown, the locking component 64 includes a straightening block 641, which is horizontally slidably disposed in the hidden groove and is elastically connected to the hidden groove. A pressing block 642, which is used to press and cooperate with the straightening block 641, is vertically slidably disposed in the hidden groove. The upper end face of the pressing block 642 is elastically connected to the hidden groove. The inner inclined surface of the pressing block 642 gradually slopes outward from top to bottom, which reduces the difficulty of pressing. The pressing block 642 and the unlocking block 65 are positioned correspondingly.
[0034] During actual operation, the sliding plate 61 is raised by the support module 7 (during the raising process, the straightening block 641 limits the lower end of the opening and closing plate 63 to prevent it from rotating downwards, at which time the opening and closing plate 63 closes the flow channel 62). The sewage in the sludge in the squeezing port 4 is squeezed out from the position of the drainage plate 51 by the squeezing module 6 in the closed state. After the sewage is discharged, the sliding plate 61 is lowered to the lowest position by the support module 7 (the lowest position is lower than the initial position of the sliding plate 61). At this time, the squeezing block 642 is raised after being squeezed by the unlocking block 65. The straightening block 641 moves outwards under the action of elasticity so that the straightening block 641 no longer limits the lower end of the opening and closing plate 63. The opening and closing plate 63 rotates downwards under the action of gravity so that it no longer closes the flow channel 62. At this time, the squeezing module 6 is in the open state, and the sludge after squeezing water can be output downwards from the squeezing module 6.
[0035] like Figure 5 As shown, the support module 7 includes a cylinder 71, which is installed inside the chamber 1 via a base. A support block 72 is installed at the top end of the cylinder 71. A connecting rod 73 connects the support block 72 and the sliding plate 61. A flow aid component 74 is provided at the upper end of the support block 72. The cylinder 71 drives the sliding plate 61 to rise and fall.
[0036] like Figure 5 As shown, the flow aid assembly 74 includes a push rod 741. The lower end of the push rod 741 is slidably disposed in the built-in groove of the support block 72. The lower end of the push rod 741 is elastically connected to the built-in groove. The upper end of the push rod 741 is connected to the inner side of the flow aid plate 742 through a pin. Under the elastic action, the flow aid plate 742 is in an inclined state in the initial state, which is conducive to the falling flow of sludge. Moreover, the elastic connection reduces the buffering force of the falling sludge.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A sludge storage bin, characterized in that, The container includes a chamber (1), the lower end of which is supported by a support foot (2). A top cone is installed at the upper end of the chamber (1), and an inlet (3) is provided in the middle of the top cone. A squeezing port (4) corresponding to the position of the inlet (3) is built into the upper half of the chamber (1). A drainage module (5) located on the left side of the squeezing port (4) is connected to a discharge pipe (50) on the left side wall of the chamber (1). A squeezing module (6) is slidably installed inside the squeezing port (4). A support module (7) located inside the chamber (1) is used to push the squeezing module (6) to move up and down. An outlet (8) is installed in the middle of the lower end of the chamber (1).
2. The sludge storage bin according to claim 1, characterized in that: An external ladder (9) is installed on the right side wall of the silo (1), an internal ladder (10) is installed on the inner side wall of the silo (1), a guardrail (11) is installed around the upper end of the top cone, and a silo reinforcement (12) with a frame structure is installed inside the silo (1).
3. A sludge storage bin according to claim 1, characterized in that: The lower end of the inlet (3) is symmetrically equipped with repositionable sealing plates (31) on the left and right sides.
4. A sludge storage bin according to claim 1, characterized in that: The drainage module (5) includes a drainage plate (51). Movable parts are symmetrically installed on the left end of the drainage plate (51). The movable parts are horizontally slidably set on the extrusion port (4). Drainage holes (52) are evenly opened on the drainage plate (51). Brush bristles (53) for piercing the drainage holes (52) are installed on the connector (54). The connector (54) is fixedly installed in the extrusion port (4). The drainage plate (51) is located in the through-hole (55) opened on the left side of the extrusion port (4). The drainage part (56) communicating with the through-hole (55) is fixedly installed on the left side of the upper end of the silo body (1).
5. A sludge storage bin according to claim 4, characterized in that: The left outlet of the drainage component (56) is connected to the upper end of the discharge pipe (50).
6. A sludge storage bin according to claim 1, characterized in that: The extrusion module (6) includes a sliding plate (61), which is slidably disposed inside the extrusion port (4). A flow groove (62) is symmetrically opened on the sliding plate (61). An opening and closing plate (63) is symmetrically rotated inside the flow groove (62). A locking component (64) that works in conjunction with the opening and closing plate (63) is disposed in a hidden groove opened on the sliding plate (61). An unlocking block (65) located below the locking component (64) is fixedly installed at the lower end of the extrusion port (4).
7. A sludge storage bin according to claim 6, characterized in that: The opening and closing plate (63) consists of a plate body and a rotating shaft. The rotating shaft is rotatably disposed in the flow groove (62) and is fixedly connected to one end of the plate body.
8. A sludge storage bin according to claim 6, characterized in that: The locking component (64) includes a straightening block (641), which is horizontally slidably disposed in a hidden groove and is elastically connected to the hidden groove. A pressing block (642) that is used in conjunction with the straightening block (641) is vertically slidably disposed in the hidden groove. The upper end face of the pressing block (642) is elastically connected to the hidden groove. The inner inclined surface of the pressing block (642) gradually slopes outward from top to bottom. The pressing block (642) and the unlocking block (65) are positioned correspondingly.
9. A sludge storage bin according to claim 6, characterized in that: The support module (7) includes a cylinder (71), which is installed inside the chamber (1) via a base. A support block (72) is installed at the top end of the cylinder (71). A connecting rod (73) is connected between the support block (72) and the sliding plate (61). A flow aid component (74) is provided at the upper end of the support block (72).
10. A sludge storage bin according to claim 9, characterized in that: The flow aid assembly (74) includes a push rod (741), the lower end of which is slidably disposed in the built-in groove of the support block (72), the lower end of which is elastically connected to the built-in groove, and the upper end of which is connected to the inner side of the flow aid plate (742) by a pin.