A sludge spreading device for drying

Abstract

This invention provides a sludge spreading device for drying, belonging to the field of sludge treatment technology. It addresses the problem that during the crushing process by extrusion rollers, sludge easily adheres to the inner wall of the hopper of a crusher and spreader due to the sticky and frictional forces generated by extrusion, hindering the smooth sludge fall of subsequent sludge. The device includes a crusher and spreader, a spreading motor, bottom guide rails, an anti-adhesion component, and a stable feeding component. The spreading motor is fixedly connected to the right side of the crusher and spreader. Two bottom guide rails are fixedly connected to the front and rear sides of the bottom of the crusher and spreader, respectively. The anti-adhesion component is located inside the transmission box and the crusher and spreader. The stable feeding component is located at the bottom of the crusher and spreader. This invention cleans the sludge adhering to the inner wall of the hopper by the reciprocating movement of a scraper, and synchronously drives the feeding wheel with the stable feeding component to precisely control the sludge falling speed, achieving uniform and controllable spreading thickness on the conveyor belt, thus laying a more efficient pretreatment foundation for subsequent sludge drying.

Description

Technical Field

[0001] This utility model belongs to the field of sludge treatment technology, and more specifically, it relates to a sludge spreading device for drying sludge. Background Technology

[0002] At the front end of the sludge drying system, in order to ensure that the sludge particles entering the drying equipment are uniform and to avoid large sludge pieces affecting the drying efficiency, extrusion crushing equipment is often used to pre-treat the sludge. Two extrusion rollers rotate in opposite directions, and the sludge falls from above into the gap between the two rollers. Large sludge particles are crushed by the extrusion and shearing action of the rollers. The crushed sludge is spread onto the conveyor belt through the funnel below to achieve preliminary pre-treatment and transportation. Existing sludge drying spreading devices generally consist of a frame, a hopper, two extrusion rollers rotating in opposite directions inside the hopper, and a drive system.

[0003] Existing application number: CN202021943111.3, this utility model discloses an environmentally friendly sludge treatment device for water conservancy projects, including a material bin, a drain pipe inserted into the bottom of one side of the material bin, a secondary drying structure inserted into one side of the material bin, and a guide seat fixedly installed on the inner wall of the material bin above the secondary drying structure. This environmentally friendly sludge treatment device for water conservancy projects, through the coordinated use of the secondary drying structure, guide seat, drain hole, servo motor, extrusion rollers, air distribution box, air outlet, feed hopper, hot air connecting pipe, hot air blower, and scraper, utilizes two extrusion rollers to crush the sludge, thereby breaking down clumps of sludge. Smaller pieces of sludge are more conducive to contact absorption and drying with the heat source, facilitating thorough drying. Simultaneously, the crushing and extrusion of the sludge helps to squeeze out moisture, further improving the drying effect and efficiency.

[0004] Based on the above, in the practical application of sludge spreading devices for sludge drying, highly viscous sludge, due to its high water content and complex composition (containing colloids, organic matter, etc.), is prone to adhering to the inner wall of the hopper of the crusher due to the sticky force and friction generated by the extrusion roller during the crushing process, forming a stubborn adhesion layer. This phenomenon will reduce the effective flow cross-sectional area of ​​the hopper, hinder the smooth fall of subsequent sludge, and even cause local blockage, forcing the equipment to stop for cleaning. This not only reduces the continuity and processing efficiency of the drying system, but also causes odor to grow and equipment corrosion to be aggravated due to the long-term retention of the adhered sludge, increasing maintenance costs and environmental risks. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a sludge spreading device for drying. This addresses the issue that in existing sludge spreading devices for drying, highly viscous sludge, due to its high water content and complex composition (containing colloids, organic matter, etc.), easily adheres to the inner wall of the crusher's hopper during the crushing process by the extrusion rollers due to the adhesive and frictional forces generated by the extrusion. This forms a stubborn adhesion layer, reducing the effective flow cross-sectional area of ​​the hopper, hindering the smooth flow of subsequent sludge, and even causing localized blockages, forcing the equipment to stop for cleaning. This not only reduces the continuity and processing efficiency of the drying system but also leads to odor generation, accelerated equipment corrosion, increased maintenance costs, and environmental risks due to the long-term retention of adhered sludge.

[0006] The purpose and effect of this utility model's sludge drying spreading device are achieved through the following specific technical means:

[0007] A sludge drying spreading device includes a crusher and spreader, extrusion rollers, a spreading motor, a transmission box, bottom guide rails, top guide rails, an anti-adhesion component, and a stable feeding component. Two extrusion rollers are provided, rotatably connected and dispersed within the crusher and spreader. The spreading motor is fixedly connected to the right side of the crusher and spreader. The transmission box is fixedly connected to the right side of the crusher and spreader. Two bottom guide rails are provided, fixedly connected to the front and rear sides of the bottom of the crusher and spreader. Two top guide rails are provided, fixedly connected to the front and rear sides of the top of the crusher and spreader. The anti-adhesion component is located inside the transmission box and the crusher and spreader. The stable feeding component is located at the bottom of the crusher and spreader.

[0008] Furthermore, the anti-adhesion component includes: a driving bevel gear, a first transmission shaft, and a driven bevel gear; the driving bevel gear is coaxially fixedly connected to the outside of the rotating shaft of the spreading motor; the first transmission shaft is rotatably connected inside the transmission box; the driven bevel gear is coaxially fixedly connected to the rear end of the first transmission shaft, and the driven bevel gear meshes with the driving bevel gear.

[0009] Furthermore, the anti-adhesion assembly also includes: a transmission worm, a reciprocating screw, and a transmission worm wheel; the transmission worm is coaxially fixedly connected to the front end of the first transmission shaft; the reciprocating screw is rotatably connected inside the bottom guide rail on the front side; the transmission worm wheel is coaxially fixedly connected to the right end of the reciprocating screw, and the transmission worm wheel meshes with the transmission worm.

[0010] Furthermore, the anti-adhesion assembly also includes: a transmission slider, a connecting rod, and a scraper; two transmission sliders are provided, and the two transmission sliders are slidably connected inside the bottom guide rails of the two components, with the front transmission slider being threadedly connected to a reciprocating screw; the connecting rod is fixedly connected to the lower end of the two transmission sliders; the scraper is fixedly connected above the connecting rod, and the outer side of the scraper is in contact with the inner wall of the hopper of the crusher and spreader.

[0011] Furthermore, the anti-adhesion component also includes: a U-shaped slider and a connecting plate; the U-shaped slider has a "U"-shaped structure, and two U-shaped sliders are provided, with the top inner ends of the two U-shaped sliders slidably connected to the inside of the top guide rails of the two pieces respectively; two connecting plates are provided, with the outer ends of the two connecting plates fixedly connected to the top outer ends of the two U-shaped sliders respectively, and the inner ends of the two connecting plates being dispersedly fixedly connected to the scraping component.

[0012] Furthermore, the stable feeding assembly includes: a feeding shaft and a feeding wheel; the feeding shaft is rotatably connected to the bottom of the crusher and spreader, and the right end of the feeding shaft is coaxially fixedly connected to the end of the spreading motor shaft; the feeding wheel is coaxially fixedly connected to the outside of the feeding shaft.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Firstly, through the design of the anti-adhesion component, the scraper moves back and forth along the bottom and top guide rails under the drive of the spreading motor, continuously scraping away the sludge adhering to the inner wall of the crushing and spreading machine hopper. This effectively prevents sticky sludge from accumulating and clogging, ensuring smooth material feeding and reducing downtime caused by manual cleaning. The dynamic cleaning mechanism, in which the scraper adheres to the inner wall of the hopper, can reduce the risk of equipment corrosion caused by long-term sludge adhesion and extend the service life of the equipment.

[0015] Secondly, by synchronously driving the feeding wheel with the spreading motor, the sludge falling speed is precisely adjusted through mechanical control. Compared with the traditional gravity free-fall mode, this design can dynamically match the feeding amount according to the drying process requirements, so that the sludge spreading thickness on the conveyor belt is uniform and controllable, thereby improving the uniformity and efficiency of the drying process. The linkage mechanism between the feeding wheel speed and the scraper moving speed can synchronously coordinate the crushing, wall cleaning and feeding rhythm, further optimizing the overall stability and synergy of the operation.

[0016] This invention utilizes a linkage design of anti-adhesion components to reciprocate and clean sludge adhering to the inner wall of the hopper, preventing blockages, reducing downtime and corrosion risks, and ensuring continuous equipment operation. A stable feeding component and a spreading motor synchronously drive the feeding wheel, precisely controlling the sludge falling speed to achieve uniform and controllable spreading thickness on the conveyor belt, improving drying uniformity and efficiency. Furthermore, the linkage mechanism optimizes operational stability and synergy, laying a more efficient pretreatment foundation for subsequent sludge drying and contributing to the economic efficiency and sustainability of sludge treatment projects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the top guide rail structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the feeding wheel structure of this utility model.

[0020] Figure 4 This is the utility model Figure 3 A magnified structural diagram showing a partial detail at point A in the middle.

[0021] Figure 5 This is a schematic diagram of the scraping component structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the U-shaped slider structure of this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Crusher and feeder; 2. Extrusion roller; 3. Feeding motor; 301. Drive bevel gear; 4. Transmission box; 5. Feeding shaft; 501. Feeding wheel; 6. First transmission shaft; 601. Driven bevel gear; 602. Transmission worm gear; 7. Reciprocating screw; 701. Transmission worm wheel; 8. Bottom guide rail; 9. Transmission slider; 901. Connecting rod; 10. Scraper; 11. Top guide rail; 12. Connecting plate; 1201. U-shaped slider. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] Example 1:

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] This utility model provides a sludge spreading device for drying, including a crusher and spreader 1, a compression roller 2, a spreading motor 3, a transmission box 4, a bottom guide rail 8, a top guide rail 11, and an anti-adhesion component; two compression rollers 2 are provided, and the two compression rollers 2 are rotatably connected inside the crusher and spreader 1; the spreading motor 3 is fixedly connected to the right side of the crusher and spreader 1; the transmission box 4 is fixedly connected to the right side of the crusher and spreader 1; two bottom guide rails 8 are provided, and the two bottom guide rails 8 are respectively fixedly connected to the front and rear sides of the bottom of the crusher and spreader 1; two top guide rails 11 are provided, and the two top guide rails 11 are respectively fixedly connected to the front and rear sides of the top of the crusher and spreader 1; the anti-adhesion component is provided inside the transmission box 4 and the crusher and spreader 1.

[0029] The anti-adhesion component includes: a driving bevel gear 301, a first drive shaft 6, and a driven bevel gear 601; the driving bevel gear 301 is coaxially fixedly connected to the outside of the rotating shaft of the spreading motor 3; the first drive shaft 6 is rotatably connected to the inside of the transmission box 4; the driven bevel gear 601 is coaxially fixedly connected to the rear end of the first drive shaft 6, and the driven bevel gear 601 meshes with the driving bevel gear 301.

[0030] The anti-adhesion assembly also includes: a transmission worm 602, a reciprocating screw 7, and a transmission worm wheel 701; the transmission worm 602 is coaxially fixedly connected to the front end of the first transmission shaft 6; the reciprocating screw 7 is rotatably connected to the inside of the bottom guide rail 8 on the front side; the transmission worm wheel 701 is coaxially fixedly connected to the right end of the reciprocating screw 7, and the transmission worm wheel 701 meshes with the transmission worm 602.

[0031] The anti-adhesion assembly also includes: a transmission slider 9, a connecting rod 901, and a scraper 10; two transmission sliders 9 are provided, and the two transmission sliders 9 are slidably connected inside the two bottom guide rails 8 respectively, with the front transmission slider 9 being threadedly connected to the reciprocating screw 7; the connecting rod 901 is fixedly connected to the lower end of the two transmission sliders 9; the scraper 10 is fixedly connected above the connecting rod 901, and the outer side of the scraper 10 is in contact with the inner wall of the hopper of the crusher and spreader 1.

[0032] The anti-adhesion assembly also includes: a U-shaped slider 1201 and a connecting plate 12; the U-shaped slider 1201 has a "U"-shaped structure, and two U-shaped sliders 1201 are provided, with the top of the inner ends of the two U-shaped sliders 1201 slidingly connected to the inside of the two top guide rails 11 respectively; two connecting plates 12 are provided, with the outer ends of the two connecting plates 12 fixedly connected to the top of the outer ends of the two U-shaped sliders 1201 respectively, and the inner ends of the two connecting plates 12 being dispersedly fixedly connected to the scraping component 10.

[0033] The specific usage and function of this embodiment: During use, after the sludge material enters the hopper of the crusher and spreader 1, it is crushed and squeezed by two extrusion rollers 2. The squeezed sludge continues to fall downwards. During this process, some highly viscous impurities may adhere to the inner wall of the hopper of the crusher and spreader 1, affecting the subsequent sludge falling. At this time, the spreading motor 3 operates, driving the first transmission shaft 6 to rotate through the bevel gear transmission mechanism formed by the meshing of the driven bevel gear 601 and the driving bevel gear 301. The first transmission shaft 6 drives the first transmission shaft 6 to rotate through the worm gear transmission mechanism formed by the meshing of the transmission worm wheel 701 and the transmission worm 602. The reciprocating screw 7 rotates, and under the guidance of the two bottom guide rails 8, the reciprocating screw 7 drives the scraper 10 to move left and right through the threaded transmission mechanism formed by the reciprocating screw 7 and the front transmission slider 9. The outer side of the scraper 10 is in contact with the inner wall of the hopper of the crusher spreader 1, thereby pushing the sludge from the inner wall of the hopper of the crusher spreader 1. During the pushing process, the sludge loosens and falls off, reducing the adhesion time, ensuring smooth material discharge, and facilitating subsequent cleaning of the inner wall of the hopper of the crusher spreader 1. The connecting plate 12 is fixedly connected to the scraper 10. With the auxiliary guidance of the U-shaped slider 1201 and the two top guide rails 11, the stability of the left and right movement of the scraper 10 is further ensured.

[0034] Example 2:

[0035] Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6 As shown, it also includes a stable feeding component, which is located at the bottom of the crusher and spreader 1.

[0036] The stable feeding assembly includes a feeding shaft 5 and a feeding wheel 501. The feeding shaft 5 is rotatably connected to the bottom of the crusher and spreader 1, and the right end of the feeding shaft 5 is coaxially fixedly connected to the shaft end of the spreading motor 3. The feeding wheel 501 is coaxially fixedly connected to the outside of the feeding shaft 5.

[0037] The specific usage and function of this embodiment: When the spreading motor 3 drives the scraper 10 to move left and right, it first drives the feeding shaft 5 and the feeding wheel 501 to rotate. The feeding wheel 501 is located at the bottom of the crusher spreading machine 1. Most of the sludge is carried out to the conveyor belt below by the rotation of the feeding wheel 501. The falling speed of the sludge material is controlled by the rotation speed of the feeding wheel 501, so that the thickness of the sludge spread on the conveyor belt can be more controllable. At the same time, the rotation speed of the feeding wheel 501 is linked with the left and right movement speed of the scraper 10. The faster the rotation speed of the feeding wheel 501, the faster the material falls, and the faster the left and right movement speed of the scraper 10 becomes, thus ensuring the scraping effect on the inner wall of the hopper of the crusher spreading machine 1.

[0038] The following points should be noted in this article:

[0039] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0040] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0041] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A sludge drying spreading device, comprising a crusher and spreader (1), a squeeze roller (2), a spreading motor (3), a transmission box (4), a bottom guide rail (8), a top guide rail (11), an anti-sticking component, and a stable feeding component; wherein two squeeze rollers (2) are provided, and the two squeeze rollers (2) are rotatably connected inside the crusher and spreader (1); characterized in that: The spreading motor (3) is fixedly connected to the right side of the crusher spreading machine (1); the transmission box (4) is fixedly connected to the right side of the crusher spreading machine (1); two bottom guide rails (8) are provided, and the two bottom guide rails (8) are fixedly connected to the front and rear sides of the bottom of the crusher spreading machine (1); two top guide rails (11) are provided, and the two top guide rails (11) are fixedly connected to the front and rear sides of the top of the crusher spreading machine (1); the anti-adhesion component is provided inside the transmission box (4) and the crusher spreading machine (1); the stable feeding component is provided at the bottom of the crusher spreading machine (1).

2. The sludge spreading device for drying as described in claim 1, characterized in that: The anti-adhesion assembly includes: a driving bevel gear (301), a first transmission shaft (6), and a driven bevel gear (601); the driving bevel gear (301) is coaxially fixedly connected to the outside of the rotating shaft of the spreading motor (3); the first transmission shaft (6) is rotatably connected to the inside of the transmission box (4); the driven bevel gear (601) is coaxially fixedly connected to the rear end of the first transmission shaft (6), and the driven bevel gear (601) meshes with the driving bevel gear (301).

3. The sludge spreading device for drying as described in claim 2, characterized in that: The anti-adhesion assembly further includes: a transmission worm (602), a reciprocating screw (7), and a transmission worm wheel (701); the transmission worm (602) is coaxially fixedly connected to the front end of the first transmission shaft (6); the reciprocating screw (7) is rotatably connected to the inside of the bottom guide rail (8) on the front side; the transmission worm wheel (701) is coaxially fixedly connected to the right end of the reciprocating screw (7), and the transmission worm wheel (701) meshes with the transmission worm (602).

4. The sludge spreading device for drying as described in claim 3, characterized in that: The anti-adhesion assembly also includes: a transmission slider (9), a connecting rod (901), and a scraper (10); two transmission sliders (9) are provided, and the two transmission sliders (9) are slidably connected inside the two bottom guide rails (8), and the front transmission slider (9) is threadedly connected to the reciprocating screw (7); the connecting rod (901) is fixedly connected to the lower end of the two transmission sliders (9); the scraper (10) is fixedly connected above the connecting rod (901), and the outer side of the scraper (10) is in contact with the inner wall of the hopper of the crusher (1).

5. The sludge spreading device for drying as described in claim 4, characterized in that: The anti-adhesion assembly further includes: a U-shaped slider (1201) and a connecting plate (12); the U-shaped slider (1201) has a "U" shaped structure, and two U-shaped sliders (1201) are provided, with the top of the inner ends of the two U-shaped sliders (1201) respectively slidably connected to the inside of the two top guide rails (11); two connecting plates (12) are provided, with the outer ends of the two connecting plates (12) respectively fixedly connected to the top of the outer ends of the two U-shaped sliders (1201), and the inner ends of the two connecting plates (12) are dispersedly fixedly connected to the scraper (10).

6. The sludge spreading device for drying as described in claim 1, characterized in that: The stable feeding assembly includes a feeding shaft (5) and a feeding wheel (501); the feeding shaft (5) is rotatably connected to the bottom of the crusher (1), and the right end of the feeding shaft (5) is coaxially fixedly connected to the shaft end of the feeding motor (3); the feeding wheel (501) is coaxially fixedly connected to the outside of the feeding shaft (5).

Images