Sludge low-temperature drying treatment equipment

By introducing a stirring rod and scraper structure into the sludge low-temperature drying equipment, the problem of uneven sludge drying was solved, and full contact between sludge and hot air and cleaning of the filter plate were achieved, thus improving drying efficiency and stability.

CN223766241UActive Publication Date: 2026-01-06NINGBO ZHIHE ENERGY SAVING & ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520076074.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-06
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

During the low-temperature drying process, sludge is prone to forming dry and wet layers, resulting in uneven drying, with some areas being too dry or too wet, which affects the drying efficiency and effect.

Method used

The system employs an agitator and scraper structure, driven by a servo motor and gear transmission system, to agitate and tumble the sludge, ensuring full contact between the sludge and hot air. The scraper cleans the filter plates to prevent clogging, thus guaranteeing the continuity and uniformity of the drying process.

Benefits of technology

It improves the uniformity of sludge drying, reduces local over-drying or over-wetting, ensures the continuity and efficiency of the drying process, avoids the formation of dry and wet layers, and enhances the operational stability of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223766241U_ABST
    Figure CN223766241U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of sludge low-temperature drying, and discloses sludge low-temperature drying treatment equipment which comprises a mounting frame and a heating box, the heating box is mounted at the end part of the mounting frame, a water flowing pipe is arranged at the bottom of the heating box, a treatment cavity is formed in the heating box, the end part of the heating box is connected with a mounting cover, and a feeding box is also mounted at the end part of the heating box; the feeding box communicates with the treatment cavity, a transmission assembly is arranged on the side portion of the mounting frame, a reciprocating mechanism is arranged in the treatment cavity and used in cooperation with the transmission assembly, and a first filter plate and a second filter plate are connected to the interior of the treatment cavity; the first gear, the second gear and the transmission belt cooperate to rotate the rotating shaft. The stirring rods and the stirring plates stir the soil to smash the soil, and the stirring rods and the stirring plates can continuously turn and stir the sludge to ensure full contact between the sludge and hot air and promote rapid evaporation of water.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of low-temperature sludge drying technology, specifically to a low-temperature sludge drying treatment device. Background Technology

[0002] Low-temperature sludge drying equipment is an environmentally friendly device specifically designed for sludge treatment. Its main function is to remove moisture from the sludge using low-temperature drying technology, reducing its water content and thus achieving sludge reduction, harmlessness, and resource utilization. The equipment works by utilizing a low-temperature hot air circulation system to exchange heat with the sludge in a low-temperature environment, causing the moisture to evaporate. Simultaneously, a negative pressure system removes the evaporated moisture, ultimately yielding dry sludge. Low-temperature drying equipment offers several advantages: First, low-temperature treatment effectively prevents the decomposition of organic matter in the sludge at high temperatures, reducing the generation of malodorous gases and minimizing secondary pollution. Second, due to the lower temperature, the equipment consumes less energy, resulting in more economical operating costs. Third, the volume of dried sludge is significantly reduced, facilitating transportation and subsequent processing. Furthermore, the dried sludge can be utilized as fuel, fertilizer, or building material raw material, meeting the requirements of a circular economy. Low-temperature sludge drying equipment is widely used in sewage treatment plants, industrial wastewater treatment stations, and various enterprises with large sludge production volumes, representing a highly efficient and environmentally friendly treatment solution in the current sludge treatment field.

[0003] Currently, when sludge is piled in drying equipment without stirring, a dry layer and a wet layer may form. The dry layer is close to the heat source, and the moisture evaporates rapidly, while the wet layer, lacking contact with the heat source, has difficulty in effectively diffusing and evaporating moisture, resulting in uneven drying overall. Therefore, this does not meet the existing requirements. To address this, we propose a low-temperature sludge drying treatment device. Utility Model Content

[0004] This invention provides a low-temperature sludge drying treatment device, which has the beneficial effects of improving the uniformity of drying and reducing local over-drying or over-wetting conditions. It solves the problem mentioned in the background art where, without stirring, sludge piled in the drying device may form a dry layer and a wet layer. The dry layer is close to the heat source, where moisture evaporates rapidly, while the wet layer, lacking contact with the heat source, has difficulty in effective moisture diffusion and evaporation, leading to uneven overall drying.

[0005] This utility model provides the following technical solution: a sludge low-temperature drying treatment device, including a mounting frame and a heating box. The heating box is installed at the end of the mounting frame. A water pipe is provided at the bottom of the heating box. A processing chamber is provided inside the heating box. A mounting cover is connected to the end of the heating box. A feeding box is also installed at the end of the heating box. The feeding box is connected to the processing chamber. A transmission component is provided on the side of the mounting frame. A reciprocating mechanism is provided inside the processing chamber. The reciprocating mechanism works in conjunction with the transmission component. A first filter plate and a second filter plate are respectively connected inside the processing chamber.

[0006] As an optional solution of the sludge low-temperature drying treatment equipment described in this utility model, the treatment chamber is provided with a stirring rod, and the stirring rod is connected to a stirring plate on its side. The stirring plate is used in conjunction with the first filter plate.

[0007] As an optional solution for the sludge low-temperature drying treatment equipment described in this utility model, the transmission component includes a servo motor and a first gear. The servo motor is connected to the side of the mounting frame, and the first gear is sleeved on the outside of the output shaft of the servo motor.

[0008] As an optional solution of the sludge low-temperature drying treatment equipment described in this utility model, the heating box is connected to a rotating shaft on the side, a second gear is sleeved on the outside of the rotating shaft, and a transmission belt is sleeved on the outside of the first gear and the second gear.

[0009] As an optional solution for the sludge low-temperature drying treatment equipment described in this utility model, a first fixing rod is connected between the heating box and the output shaft of the servo motor.

[0010] As an optional solution for the sludge low-temperature drying treatment equipment described in this utility model, the reciprocating mechanism includes a third gear and a bevel gear, the first fixed rod is inserted into the interior of the treatment chamber, the third gear is sleeved on the outside of the first fixed rod, the inner wall of the treatment chamber is connected to a second fixed rod, and the bevel gear is sleeved on the outside of the second fixed rod.

[0011] As an optional solution of the sludge low-temperature drying treatment equipment described in this utility model, the bevel gear meshes with the third gear for transmission, a fourth gear is sleeved on the outer side of the second fixed rod, and a rack is provided on the inner wall of the treatment chamber, which meshes with the fourth gear for transmission.

[0012] As an optional solution of the sludge low-temperature drying treatment equipment described in this utility model, wherein: a slider is connected to the side of the rack, the slider is slidably engaged with the groove, a movable column is connected to the end of the rack, a scraper is connected to the end of the movable column, and the scraper is used in conjunction with the second filter plate.

[0013] This utility model has the following beneficial effects:

[0014] 1. This low-temperature sludge drying equipment, through the installation of a stirring rod, uses a servo motor to drive the first gear, which in turn, along with the second gear and transmission belt, rotates the shaft. The stirring rod and plate agitate the sludge, breaking it up. The stirring rod and plate continuously agitate the sludge, ensuring sufficient contact between the sludge and hot air, promoting rapid evaporation of moisture. This agitation effectively prevents the formation of dry and wet layers during the drying process, improving drying uniformity and reducing localized over-drying or over-wetness. It solves the problem of uneven drying caused by sludge piled in the drying equipment without agitation, where a dry layer near the heat source evaporates quickly, while a wet layer, lacking heat source contact, suffers from poor moisture diffusion and evaporation.

[0015] 2. This low-temperature sludge drying equipment, through the setting of scrapers, the scrapers cooperate with the second filter plate. When the servo motor starts, the first fixed rod rotates, driving the third gear to rotate. The third gear meshes with the bevel gear for transmission. At the same time, the second fixed rod rotates, causing the fourth gear to mesh with the rack for transmission, driving the scraper to cooperate with the second filter plate. Through the periodic or continuous cleaning action of the scraper, the filtration performance of the second filter plate can be prevented from being affected by sludge blockage, thereby ensuring the continuity and high efficiency of the sludge drying process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a partial three-dimensional structural diagram of the present invention.

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram at point A.

[0020] In the diagram: 110, mounting frame; 111, mounting cover; 112, feed box; 113, processing chamber; 120, heating box; 122, stirring rod; 123, stirring plate; 125, first fixed rod; 130, second fixed rod; 140, transmission assembly; 141, servo motor; 142, first gear; 143, rotating shaft; 144, second gear; 145, transmission belt; 150, reciprocating mechanism; 151, third gear; 152, bevel gear; 153, fourth gear; 154, rack; 155, slider; 160, chute; 161, scraper; 170, first filter plate; 171, second filter plate; 172, moving column; 200, water pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1 aims to address the issue that when sludge is piled in a drying device without stirring, a dry layer and a wet layer may form. The dry layer, being close to the heat source, evaporates moisture rapidly, while the wet layer, lacking contact with the heat source, suffers from poor moisture diffusion and evaporation, resulting in uneven drying. Please refer to [link to relevant documentation]. Figure 1-4 A low-temperature sludge drying treatment device includes a mounting frame 110 and a heating box 120. The heating box 120 is installed at the end of the mounting frame 110. A water pipe 200 is provided at the bottom of the heating box 120. A processing chamber 113 is provided inside the heating box 120. A mounting cover 111 is connected to the end of the heating box 120. A feed box 112 is also installed at the end of the heating box 120, and the feed box 112 is connected to the processing chamber 113. A transmission assembly 140 is provided on the side of the mounting frame 110. A reciprocating mechanism 150 is provided inside the processing chamber 113. The reciprocating mechanism 150 works in conjunction with the transmission assembly 140. A first filter plate 170 and a second filter plate 171 are respectively connected inside the processing chamber 113. A stirring rod 122 is provided inside the processing chamber 113. A stirring plate 123 is connected to the side of the stirring rod 122 and works in conjunction with the first filter plate 170.

[0023] The transmission assembly 140 includes a servo motor 141 and a first gear 142. The servo motor 141 is connected to the side of the mounting bracket 110, and the first gear 142 is sleeved on the outside of the output shaft of the servo motor 141. A rotating shaft 143 is connected to the side of the heating box 120, and a second gear 144 is sleeved on the outside of the rotating shaft 143. A transmission belt 145 is sleeved on the outside of the first gear 142 and the second gear 144. A first fixing rod 125 connects the heating box 120 and the output shaft of the servo motor 141.

[0024] In this embodiment: The servo motor 141 rotates, driven by the stirring rod 122, which in turn drives the first gear 142. The first gear 142, the second gear 144, and the transmission belt 145 work together to rotate the shaft 143. The stirring rod 122 and the stirring plate 123 agitate the soil, breaking it up. The stirring rod 122 and the stirring plate 123 continuously agitate and stir the sludge, ensuring sufficient contact between the sludge and the hot air, promoting rapid evaporation of moisture. Agitation effectively prevents the formation of dry and wet layers during the drying process, improving drying uniformity and reducing localized over-drying or over-wetting. This solves the problem of uneven drying caused by sludge piled in the drying equipment without agitation. A dry layer, close to the heat source, evaporates quickly, while a wet layer, lacking contact with the heat source, suffers from poor moisture diffusion and evaporation.

[0025] Example 2 aims to further resolve the problem of filter plate clogging. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 1-4 The reciprocating mechanism 150 includes a third gear 151 and a bevel gear 152. A first fixed rod 125 is inserted into the interior of the processing cavity 113. The third gear 151 is sleeved on the outside of the first fixed rod 125. A second fixed rod 130 is connected to the inner wall of the processing cavity 113. The bevel gear 152 is sleeved on the outside of the second fixed rod 130.

[0026] The bevel gear 152 meshes with the third gear 151 for transmission. The fourth gear 153 is sleeved on the outside of the second fixed rod 130. A rack 154 is provided on the inner wall of the processing chamber 113. The rack 154 meshes with the fourth gear 153 for transmission. A slider 155 is connected to the side of the rack 154. The slider 155 slides and engages with the slide groove 160. A moving column 172 is connected to the end of the rack 154. A scraper 161 is connected to the end of the moving column 172. The scraper 161 works in conjunction with the second filter plate 171.

[0027] In this embodiment: With the scraper 161 in place, the scraper 161 cooperates with the second filter plate 171. When the servo motor 141 is started, the first fixed rod 125 rotates, driving the third gear 151 to rotate. The third gear 151 meshes with the bevel gear 152 for transmission. At the same time, the second fixed rod 130 rotates, causing the fourth gear 153 to mesh with the rack 154 for transmission. This drives the scraper 161 to cooperate with the second filter plate 171. Through the periodic or continuous cleaning action of the scraper 161, the second filter plate 171 can be prevented from being affected by sludge blockage, thus ensuring the continuity and efficiency of the sludge drying process.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sludge low-temperature drying treatment device, comprising a mounting frame (110) and a heating box (120), the heating box (120) is mounted at the end of the mounting frame (110), and a water flow pipe (200) is arranged at the bottom of the heating box (120), characterized in that: The heating box (120) is internally provided with a treatment cavity (113), the heating box (120) is provided with a mounting cover (111) at one end, and the heating box (120) is also provided with a feeding box (112) at one end, the feeding box (112) is in communication with the treatment cavity (113), a transmission assembly (140) is arranged on the side of the mounting frame (110), the treatment cavity (113) is internally provided with a reciprocating mechanism (150), the reciprocating mechanism (150) is used in cooperation with the transmission assembly (140), and the treatment cavity (113) is respectively connected with a first filter plate (170) and a second filter plate (171).

2. A sludge low-temperature drying treatment apparatus according to claim 1, characterized by: The treatment cavity (113) is internally provided with an agitating rod (122), the agitating rod (122) is connected with an agitating plate (123) on the side, and the agitating plate (123) is used in cooperation with the first filter plate (170).

3. A sludge low temperature drying treatment apparatus according to claim 1, characterized by: The transmission assembly (140) comprises a servo motor (141) and a first gear (142), the servo motor (141) is connected to the side of the mounting frame (110), and the first gear (142) is arranged on the outside of the output shaft of the servo motor (141).

4. A sludge low-temperature drying treatment apparatus according to claim 3, characterized by: The heating box (120) is connected with a rotating shaft (143) on the side, the rotating shaft (143) is externally provided with a second gear (144), and the first gear (142) and the second gear (144) are externally provided with a transmission belt (145).

5. A sludge low temperature drying treatment apparatus according to claim 3, characterized by: The heating box (120) is connected with the output shaft of the servo motor (141) through a first fixing rod (125).

6. A sludge low-temperature drying treatment apparatus according to claim 5, characterized by: The reciprocating mechanism (150) comprises a third gear (151) and a bevel gear (152), the first fixing rod (125) penetrates the inside of the treatment cavity (113), the third gear (151) is arranged on the outside of the first fixing rod (125), the treatment cavity (113) is internally provided with a second fixing rod (130), and the bevel gear (152) is arranged on the outside of the second fixing rod (130).

7. A sludge low-temperature drying treatment apparatus according to claim 6, characterized by: The bevel gear (152) is in meshing transmission with the third gear (151), the second fixing rod (130) is externally provided with a fourth gear (153), the treatment cavity (113) is internally provided with a rack (154), and the rack (154) is in meshing transmission with the fourth gear (153).

8. A sludge low-temperature drying treatment apparatus according to claim 7, characterized by: The rack (154) is connected with a sliding block (155) on the side, the sliding block (155) is in sliding engagement with a sliding groove (160), the rack (154) is connected with a moving column (172) at one end, the moving column (172) is connected with a scraper (161) at one end, and the scraper (161) is used in cooperation with the second filter plate (171).