Sludge drying device
By introducing a sludge pretreatment mechanism and an exhaust gas treatment system into the sludge drying device, the problem of sludge easily forming lumps was solved, achieving a highly efficient and energy-saving sludge drying process, and improving the sludge drying efficiency and environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional sludge drying equipment lacks pretreatment functions, which makes the sludge prone to clumping, affecting the adequacy of drying and resulting in high energy consumption.
A sludge drying device was designed, including a sludge pretreatment mechanism. The sludge is squeezed into strips by an extension rod and a pressure plate driven by a cylinder and enters the drying chamber. It is then dried by a mesh belt conveyor and a hot air blower. At the same time, an exhaust gas treatment mechanism is set up to recover heat energy and purify exhaust gas.
This improved the sludge drying efficiency, reduced energy consumption, avoided secondary drying processes, increased drying efficiency, and reduced environmental pollution.
Smart Images
Figure CN224105732U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sludge drying technical field, concretely relates to a sludge drying device. BACKGROUND
[0002] The sludge needs to be dried mainly because of its high water content (usually more than 80%), which is prone to corruption and odor, has a large volume and high transportation cost, and may also breed pathogens to pollute the environment. By drying to reduce the water content (to less than 30%), the volume of the sludge can be greatly reduced, the heat value stability can be improved, the subsequent resource utilization (such as fuel and organic fertilizer) or safe incineration can be facilitated, and the risk of land occupation and leachate pollution can be avoided, achieving the goals of reduction, harmlessness and resource utilization.
[0003] The traditional sludge drying device does not have the function of pretreating the sludge. During use, the sludge is lifted to the inside of the drying device by a screw elevator and directly subjected to drying treatment. The sludge is prone to be in the form of a large block, which may affect the drying completeness. SUMMARY
[0004] The utility model discloses a sludge drying device to solve the problems in the above background technology.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] A sludge drying device, comprising a sludge drying bin and a mesh belt conveying device, the bottom of the sludge drying bin is fixedly connected with a connecting cover, the front surface of the connecting cover is fixedly connected with a hot air blower, the mesh belt conveying device is arranged in the inner cavity of the sludge drying bin, the top of the sludge drying bin is provided with a sludge pretreatment mechanism, the top of the sludge drying bin is provided with a waste gas treatment mechanism, the sludge pretreatment mechanism comprises a feed bin, the feed bin is fixedly connected to the top of the sludge drying bin, the side surface of the inner wall of the feed bin is fixedly installed with an inner folding plate, a strip-shaped frame is fixedly installed between the adjacent sides of two inner folding plates, a strip-shaped plate is detachably connected in the inner cavity of the strip-shaped frame, and a through hole is formed in the top of the strip-shaped plate.
[0007] Preferably, the right side of the feed bin is fixedly installed with a vertical plate seat, the left side of the vertical plate seat is fixedly installed with a transverse plate seat, the top of the transverse plate seat is fixedly installed with a gas cylinder, the telescopic end of the gas cylinder extends to the bottom of the transverse plate seat and is fixedly connected with an extension rod, and the bottom of the extension rod is fixedly connected with a pressing plate.
[0008] Preferably, the waste gas treatment mechanism comprises an air suction fan fixedly connected to the top of the sludge drying bin, a connecting pipeline fixedly connected to the top of the air suction fan, a treatment bin fixedly connected to the right side of the connecting pipeline, and the treatment bin is fixedly installed on the top of the sludge drying bin.
[0009] Preferably, the left side of the treatment bin is detachably connected with an inspection cover plate, the right side of the inner wall of the treatment bin is fixedly connected with a heat exchange pipe, the right side of the treatment bin is fixedly connected with an adapter pipe, the right side of the treatment bin is fixedly connected with a water inlet and a water outlet, and the bottom of the treatment bin is fixedly connected with a gate valve.
[0010] Preferably, the top of the treatment bin is movably inserted with a movable cylinder, and the inner wall of the movable cylinder is sequentially fixedly installed with a coarse filter screen, an activated carbon filter screen and a protective screen from bottom to top.
[0011] Preferably, the top of the treatment bin is fixedly installed with a first protruding block, the inner wall of the first protruding block is slidably connected with a sliding rod, the end of the sliding rod is fixedly installed with a clamping piece, the top of the treatment bin is fixedly installed with a second protruding block, the side close to the clamping piece of the second protruding block is detachably connected with an elastic metal sheet, and the end away from the second protruding block of the elastic metal sheet is movably connected with the outer wall of the clamping piece.
[0012] Due to the adoption of the above technical scheme, the technical progress achieved by the present application relative to the prior art is:
[0013] Through the overall design of the sludge pretreatment mechanism, the lifted sludge can be temporarily stored by means of the feeding bin, and then the gas cylinder can be controlled to repeatedly stretch and retract. In the process of stretching of the gas cylinder, the pressure plate can be driven to move downward by the transmission of the extension rod, the pressure plate can extrude part of the sludge, and part of the sludge can pass through the through hole in a strip shape into the inner cavity of the sludge drying bin, so that the volume of the sludge is uniform and has a certain interval, the subsequent drying of the sludge is improved, the drying efficiency is improved, the problem of insufficient drying of the large block-shaped sludge is avoided, and secondary drying treatment is not required, thereby reducing the energy consumption. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the present application;
[0015] Figure 2 It is an internal structure schematic view of the sludge drying bin of the present application
[0016] Figure 3 It is a sectional structure schematic view of the feeding bin of the present application;
[0017] Figure 4 It is a structure schematic view of the strip-shaped plate after being detached;
[0018] Figure 5 It is the internal structure schematic view of the processing bin of the utility model;
[0019] Figure 6 It is the split structure schematic view of the movable cylinder of the utility model.
[0020] In the drawing: 1, sludge drying bin; 11, connecting cover; 12, hot air machine; 13, mesh belt conveying device; 2, sludge pretreatment mechanism; 21, feeding bin; 211, inner folding plate; 212, strip frame; 213, strip plate; 214, through hole; 22, vertical plate base; 23, transverse plate base; 24, air cylinder; 25, extension rod; 26, pressing plate; 3, waste gas treatment mechanism; 31, air suction fan; 32, connecting pipeline; 33, processing bin; 331, movable cylinder; 332, coarse filter screen; 333, activated carbon filter screen; 334, protective screen; 335, No. 1 protruding block; 336, sliding rod; 337, clamping piece; 338, No. 2 protruding block; 339, elastic metal sheet; 34, maintenance cover plate; 35, heat exchange pipe; 36, adapter pipe; 37, water inlet; 38, water outlet; 39, gate valve. DETAILED DESCRIPTION
[0021] The utility model will be made further detailed description in combination with example:
[0022] For example, Figures 1-6The utility model provides a kind of sludge drying device, including sludge drying bin 1 and mesh belt conveying device 13, the bottom of sludge drying bin 1 is fixedly connected with connecting cover 11, the front of connecting cover 11 is fixedly connected with hot blast machine 12, mesh belt conveying device 13 is arranged in the inner chamber of sludge drying bin 1, the top of sludge drying bin 1 is provided with sludge pretreatment mechanism 2, the top of sludge drying bin 1 is provided with waste gas treatment mechanism 3, sludge pretreatment mechanism 2 includes feed bin 21, feed bin 21 is fixedly connected at the top of sludge drying bin 1, the side of inner wall of feed bin 21 is fixedly installed with inner folding plate 211, two inner folding plates 211 are fixedly installed with strip frame 212 between the side of adjacent, strip frame 212 is detachably connected with strip plate 213 in the inner chamber, the top of strip plate 213 is provided with through-hole 214, the right side of feed bin 21 is fixedly installed with vertical plate seat 22, the left side of vertical plate seat 22 is fixedly installed with horizontal plate seat 23, the top of horizontal plate seat 23 is fixedly installed with air cylinder 24, the telescopic end of air cylinder 24 extends to the bottom of horizontal plate seat 23 and is fixedly connected with extension rod 25, the bottom of extension rod 25 is fixedly connected with pressing plate 26, feed bin 21 is used to store temporarily and handle the sludge that is lifted, when working, control air cylinder 24 to carry out repeated telescopic work, during the process of air cylinder 24 extension, can be driven down pressing plate 26 by the transmission of extension rod 25, pressing plate 26 can extrude part of sludge, promote part of sludge to be strip-shaped and pass through through-hole 214 into the inner chamber of sludge drying bin 1, so that the volume of sludge is uniform and has certain interval, can improve the drying sufficiency of sludge subsequently, strip plate 213 is installed in the inner chamber of strip frame 212 by means of bolt, by this design, user can replace strip plate 213 with different size through-hole 214 to adapt to production.
[0023] Further, as Figure 2 Indicated, waste gas treatment mechanism 3 includes suction fan 31, suction fan 31 is fixedly connected at the top of sludge drying bin 1, the top of suction fan 31 is fixedly connected with connecting pipeline 32, the right side of connecting pipeline 32 is fixedly connected with processing bin 33, processing bin 33 is fixedly installed at the top of sludge drying bin 1, control suction fan 31 works, can absorb the hot and humid gas generated when drying, and guide processing bin 33 inner chamber to carry out treatment, avoid hot and humid gas to diffuse directly to the room, can seriously pollute workshop environment problem.
[0024] Further, as Figure 5As shown, the left side of the treatment bin 33 is detachably connected with an inspection cover plate 34, the right side of the inner wall of the treatment bin 33 is fixedly connected with heat exchange pipes 35, the right side of the treatment bin 33 is fixedly connected with an adapter pipe 36, the right side of the treatment bin 33 is fixedly connected with a water inlet 37 and a water outlet 38, and the bottom of the treatment bin 33 is fixedly connected with a gate valve 39. Through the design of the adapter pipe 36, the two heat exchange pipes 35 can be connected end to end. The user can connect the output end of the cold water pump at the water inlet 37. During operation, the cold water pump is controlled to work, so that the cold water flows through the inner cavity of the heat exchange pipe 35. In the process, the cold water exchanges heat with the hot and humid gas, achieving the function of heating the cold water. The heated water can be output from the water outlet 38 for the user to receive and use, achieving the function of heat recovery, reducing energy consumption. The water condensed by the hot and humid gas in the treatment bin 33 is left at the bottom of the inner cavity of the treatment bin 33. The gate valve 39 is controlled to open to discharge the condensed water. During maintenance, the inspection cover plate 34 is detached, and the surface of the heat exchange pipe 35 can be cleaned.
[0025] Further, as shown in Figure 6 The top of the treatment bin 33 is movably inserted with a movable cylinder 331. The inner wall of the movable cylinder 331 is sequentially fixedly installed with a coarse filter screen 332, an activated carbon filter screen 333 and a protective screen 334 from bottom to top. The material of the coarse filter screen 332 is non-woven fabric. Through the design of the coarse filter screen 332, the particulate impurities in the exhaust gas can be filtered. Through the design of the activated carbon filter screen 333, the exhaust gas can be adsorbed and filtered, effectively reducing the content of organic matter in the exhaust gas and increasing the environmental protection of the structure.
[0026] Further, as shown in Figure 6 The top of the treatment bin 33 is fixedly installed with a first protruding block 335. A sliding rod 336 is slidably connected to the inner wall of the first protruding block 335. A clamping piece 337 is fixedly installed at the end of the sliding rod 336. The top of the treatment bin 33 is fixedly installed with a second protruding block 338. A resilient metal sheet 339 is detachably connected to the side of the second protruding block 338 close to the clamping piece 337. The end of the resilient metal sheet 339 away from the second protruding block 338 is movably connected to the outer wall of the clamping piece 337. In the initial state, the initial elastic force of the resilient metal sheet 339 can exert a pushing force on the clamping piece 337, so that the clamping piece 337 tightly abuts against the outer wall of the movable cylinder 331, completing the fixation of the movable cylinder 331. If it is necessary to disassemble and maintain the whole movable cylinder 331, the clamping piece 337 is pulled away from the outer wall of the movable cylinder 331. The movable cylinder 331 is replaced in the gap. After the replacement is completed, the clamping piece 337 is released, and the second protruding block 338 drives the clamping piece 337 to reset, so as to clamp the movable cylinder 331 and lock the position of the movable cylinder 331. The resilient metal sheet 339 is installed on the second protruding block 338 by means of bolts. The user can replace the damaged resilient metal sheet 339.
[0027] The working principle of this sludge drying device will be explained in detail below.
[0028] like Figures 1-6 As shown, during operation, the sludge is lifted into the feed hopper 21 by a screw conveyor. The cylinder 24 is repeatedly extended and retracted. During the extension of the cylinder 24, the pressure plate 26 is driven downwards via the extension rod 25. The pressure plate 26 squeezes some of the sludge, causing it to pass through the through hole 214 in strip form and enter the inner cavity of the sludge drying hopper 1. The sludge falls onto the top of the mesh belt conveyor 13. Controlling the mesh belt conveyor 13 allows the sludge to be conveyed to the right. At this time, the hot air blower 12 is activated to deliver hot air into the inner cavity of the sludge drying hopper 1. The hot air passes through the mesh belt conveyor... Device 13 is used to dry sludge. The dried sludge is discharged from the right side of sludge drying chamber 1. During the drying process, the suction fan 31 is controlled to absorb the hot and humid air generated during drying and guide it into the inner cavity of the treatment chamber 33 for treatment. The output end of the cold water pump is connected to the water inlet 37 in advance. During operation, the cold water pump is controlled to make the cold water flow through the inner cavity of the heat exchange tube 35. During the process, the cold water will exchange heat with the hot and humid air to achieve the function of heating the cold water. Then, the exhaust gas can be filtered through the design of coarse filter screen 332 and activated carbon filter screen 333.
[0029] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A sludge drying apparatus, characterized by: Including sludge drying bin and mesh belt conveying device, the bottom of sludge drying bin is fixedly connected with connecting cover, the front surface of connecting cover is fixedly connected with air heater, mesh belt conveying device is arranged in the inner cavity of sludge drying bin, the top of sludge drying bin is provided with sludge pretreatment mechanism, the top of sludge drying bin is provided with waste gas treatment mechanism, sludge pretreatment mechanism includes feed bin, feed bin is fixedly connected at the top of sludge drying bin, the side surface of inner wall of feed bin is fixedly installed with inner folding plate, strip-shaped frame is fixedly installed between the adjacent side of two inner folding plates, strip-shaped plate is detachably connected in the inner cavity of strip-shaped frame, the top of strip-shaped plate is provided with through hole.
2. A sludge drying apparatus according to claim 1, characterised in that: The right side of the feed bin is fixedly installed with a vertical plate seat, the left side of the vertical plate seat is fixedly installed with a horizontal plate seat, the top of the horizontal plate seat is fixedly installed with a gas cylinder, the telescopic end of the gas cylinder extends to the bottom of the horizontal plate seat and is fixedly connected with an extension rod, the bottom of the extension rod is fixedly connected with a pressing plate.
3. The sludge drying apparatus according to claim 1, characterized by: The waste gas treatment mechanism includes a suction fan, the suction fan is fixedly connected to the top of the sludge drying bin, the top of the suction fan is fixedly connected with a connecting pipeline, the right side of the connecting pipeline is fixedly connected with a treatment bin, the treatment bin is fixedly installed on the top of the sludge drying bin.
4. A sludge drying apparatus as claimed in claim 3, wherein: The left side of the treatment bin is detachably connected with an inspection cover plate, the right side of the inner wall of the treatment bin is fixedly connected with a heat exchange pipe, the right side of the treatment bin is fixedly connected with an adapter pipe, the right side of the treatment bin is fixedly connected with a water inlet pipe and a water outlet pipe.
5. A sludge drying apparatus as claimed in claim 4, wherein: The top of the treatment bin is movably inserted with a movable cylinder, the inner wall of the movable cylinder is sequentially fixedly installed with a coarse filter screen, an activated carbon filter screen and a protective screen from bottom to top.
6. A sludge drying apparatus according to claim 5, wherein: The top of the treatment bin is fixedly installed with a first protruding block, the inner wall of the first protruding block is slidably connected with a sliding rod, the end of the sliding rod is fixedly installed with a clamping piece.
7. A sludge drying apparatus according to claim 6, wherein: The top of the treatment bin is fixedly installed with a second protruding block, the side of the second protruding block close to the clamping piece is detachably connected with an elastic metal sheet, the end of the elastic metal sheet away from the second protruding block is movably connected with the outer wall of the clamping piece.
8. A sludge drying apparatus as claimed in claim 4, wherein: The bottom of the treatment bin is fixedly connected with a gate valve.