Spiral flow guide type sludge drying machine

By combining a spiral guide design with a scraper and a vibrating collection ring, the problems of sludge clumping and inconvenient collection and cleaning in sludge dryers are solved, achieving efficient and uniform sludge drying and convenient collection and cleaning.

CN224030862UActive Publication Date: 2026-03-24SHANGHAI DUOLI CONTROL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional sludge dryers suffer from problems such as sludge clumping leading to obstructed heat transfer, low drying efficiency, uneven material conveying, and inconvenient collection and cleaning after drying.

Method used

The spiral guide design is adopted, which transports sludge through spiral blades, and combines scraper to remove clumps and vibrating collection ring to collect dry sludge, so as to achieve efficient sludge guiding, drying and cleaning.

Benefits of technology

It improves the efficiency of sludge drying, ensures uniform drying and convenient collection of sludge, reduces equipment downtime for maintenance, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applied to the technical field of sludge treatment, and discloses a spiral flow guide type sludge drying machine which comprises an outer cylinder body, an inner cylinder body is fixedly arranged on the inner bottom surface of the outer cylinder body, a double-head motor is fixedly installed at the upper end of the inner cylinder body, and a bearing rod is fixedly arranged on the inner side surface of the outer cylinder body. And a scraping mechanism is arranged at the upper end of the outer barrel, and efficient work of the electric heating plate is guaranteed in a mode of rapidly scraping caked sludge. According to the spiral flow guide type sludge drying machine, sludge in the outer barrel can be sucked into the inner barrel through the feeding port to be conveyed upwards in the mode that the center rod drives the spiral blade to rotate, the sludge overflows to the surface of the electric heating plate after being conveyed to the discharging port, and the sludge is flatly laid on the upper surface of the electric heating plate in a sludge self-leveling mode; and redundant sludge flows back to the interior of the outer cylinder through a gap between the electric heating plate and the outer cylinder, so that flow guide conveying of the sludge is realized.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a sludge treatment technical field, concretely is a spiral flow guide formula sludge drying machine. BACKGROUND

[0002] In the environmental protection engineering field such as sewage treatment, river dredging, the treatment of sludge is a key link, and the sludge contains a large amount of moisture, if not effectively drying treatment, not only occupies a large space, also easily causes secondary pollution to the environment, at present, there are various types of sludge drying machine on the market;

[0003] The traditional sludge drying machine often faces many problems in the working process, on the one hand, the sludge is easy to cake in the drying process, especially on the surface of the heating component, the caked sludge will hinder heat transfer, reduce the drying efficiency, for example, the sludge on the surface of the heating plate of the common flat plate dryer cakes, manual cleaning is needed frequently, which consumes a lot of manpower and time cost, and the equipment needs to be stopped during the cleaning process, which seriously affects the production progress.

[0004] On the other hand, the existing drying machine has poor efficiency in material conveying, and some drying machines use simple stirring devices, which cannot realize efficient directional conveying of sludge, resulting in uneven drying, some sludge is over-dried, and some sludge is not dried enough, in addition, the collection and cleaning of the dried material are not convenient, and the residual material will affect the drying effect of the next batch. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a spiral flow guide formula sludge drying machine to solve the problems of poor drying efficiency and inconvenient collection and cleaning of the dried sludge in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a spiral flow guide formula sludge drying machine, which comprises an outer cylinder, an inner cylinder is fixedly arranged on the inner bottom surface of the outer cylinder, a double-head motor is fixedly installed on the upper end of the inner cylinder, the lower end output shaft of the double-head motor penetrates the inner top surface of the inner cylinder, the lower end output shaft of the double-head motor is fixedly connected with a center rod, and a spiral blade is fixedly arranged on the outer side surface of the center rod, a feeding port is formed in the lower end outer surface of the inner cylinder, and a discharging port is formed in the upper end outer surface of the inner cylinder, an electric push rod is fixedly arranged on the inner bottom surface of the outer cylinder, an electric heating plate is fixedly connected to the upper end of the electric push rod, a supporting rod is fixedly arranged on the inner side surface of the outer cylinder, and a scraping mechanism is arranged on the upper end of the outer cylinder, which ensures the efficient work of the electric heating plate by quickly scraping off the caked sludge.

[0007] The scraping mechanism comprises a scraping rod fixedly arranged at the upper end output shaft of the double-head motor, an installation ring fixedly arranged on the outer surface of the outer cylinder body, and a sliding collection ring fixedly arranged on the outer surface of the outer cylinder body above the installation ring.

[0008] Preferably, the outer cylinder body, the inner cylinder body and the center rod are concentrically designed, the lower end of the spiral blade is attached to the inner bottom surface of the inner cylinder body, the upper end of the spiral blade is attached to the inner top surface of the inner cylinder body, and the outer surface of the spiral blade is attached to the inner surface of the inner cylinder body.

[0009] The above technical solution can ensure that the spiral blade forms a good sealing conveying environment for the sludge in the inner cylinder body when rotating, avoids leakage and accumulation of the sludge during conveying, ensures efficient and stable conveying of the sludge from the feeding port to the discharging port, realizes precise flow guiding and conveying of the sludge, and improves the overall working efficiency of the drying machine.

[0010] Preferably, the lower surface of the electric heating plate is attached to the upper end surface of the supporting rod, the upper surface of the electric heating plate is flush with the lower end of the discharging port, and a gap is left between the outer surface of the electric heating plate and the inner surface of the outer cylinder body.

[0011] The above technical solution can stably support the electric heating plate to ensure its stability during operation, and the flush upper surface of the electric heating plate with the lower end of the discharging port is conducive to the direct and smooth falling of the sludge overflowing from the discharging port onto the electric heating plate, facilitating subsequent drying treatment. The gap between the outer surface of the electric heating plate and the outer cylinder body does not affect the drying effect of the electric heating plate on the sludge, and on the other hand, it is convenient for the excess sludge to flow back to the inside of the outer cylinder body, avoiding accumulation around the electric heating plate and maintaining the normal operation of the equipment.

[0012] Preferably, the scraping rod is arc-shaped, the lower end surface of the scraping rod is attached to the upper end surface of the outer cylinder body, and the scraping rod is distributed at equal angles.

[0013] The arc-shaped scraping rod can better attach to the surface of the electric heating plate when following the rotation of the upper end output shaft of the double-head motor, completely scraping off the dried and caked sludge on the electric heating plate. The attachment of the lower end surface of the scraping rod to the upper end surface of the outer cylinder body can effectively prevent the scraped sludge from falling into the inside of the outer cylinder body again. The equal-angle distribution of the scraping rod ensures uniform scraping effect on each position of the electric heating plate during scraping, ensuring that the surface of the electric heating plate is completely cleaned and maintaining its drying efficiency.

[0014] Preferably, springs are connected between the installation ring and the collection ring, and the installation ring and the collection ring are both inclined.

[0015] With the technical scheme, the spring between the mounting ring and the collecting ring can play a buffering and adjusting role, and when the vibration motor drives the collecting ring to vibrate, the vibration of the collecting ring is more stable, the oblique design of the mounting ring and the collecting ring and the structure that the end where the discharging port is located is lower are beneficial to the dry sludge in the collecting ring to flow to the discharging port under the action of gravity and vibration, so that the dry sludge is smoothly discharged, the accumulation of the sludge in the collecting ring is avoided, and efficient collection and discharge of the dry sludge are realized.

[0016] Preferably, the vibration motor is located below the higher end of the collecting ring, and the upper end of the vibration motor is attached to the lower surface of the collecting ring.

[0017] With the technical scheme, the position design of the vibration motor ensures that the vibration motor can directly produce effective vibration on the collecting ring, and when the vibration motor is started, the vibration is transmitted to the collecting ring, so that the dry sludge in the collecting ring overcomes its friction and moves on the inclined collecting ring to the discharging port, thereby realizing that the dry sludge is quickly and smoothly discharged through the discharging port, and the cleaning efficiency of the dried sludge is improved.

[0018] Compared with the prior art, the helical flow guide type sludge dryer has the following beneficial effects:

[0019] 1. The sludge in the outer cylinder can be sucked into the inner cylinder through the feed port and transported in the form of an image, and the sludge is overflowed to the surface of the electric heating plate after being transported to the discharge port, and is laid on the upper surface of the electric heating plate in the form of self-leveling, and the excess sludge is backflowed to the inside of the outer cylinder through the gap between the electric heating plate and the outer cylinder, so that the sludge is transported by flow guiding;

[0020] 2. The sludge is dried by the electric heating plate, and the electric heating plate is lifted to a position flush with the upper end surface of the outer cylinder, and the rotating scraper rod scrapes the dried sludge on the surface of the electric heating plate, so as to ensure the drying effect of the sludge on the subsequent electric heating plate;

[0021] Further, the arc-shaped design of the scraper rod enables the dried sludge scraped by the scraper rod to be gradually pushed out to the outside of the outer cylinder during rotation, so as to ensure that the dried sludge will not fall into the inside of the outer cylinder again;

[0022] 3. The dried sludge pushed out is collected by the collecting ring, and the vibration motor drives the collecting ring to reciprocate, so that the dried sludge can be discharged outward through the discharging port, and the accumulation of the sludge in the collecting ring is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0024] Figure 2 It is the three-dimensional structure schematic view of the connection of the outer cylinder body, the mounting ring and the collecting ring of the utility model;

[0025] Figure 3 It is the three-dimensional structure schematic view of the whole section of the utility model;

[0026] Figure 4 It is the three-dimensional structure schematic view of the connection of the mounting ring and the vibration motor of the utility model;

[0027] Figure 5 It is the three-dimensional structure schematic view of the connection of the double-head motor, the center pole and the spiral blade section of the utility model;

[0028] Figure 6 It is the three-dimensional structure schematic view of the working state section of the utility model.

[0029] In the drawing: 1, outer cylinder body; 2, inner cylinder body; 3, double-head motor; 4, center pole; 5, spiral blade; 6, feed inlet; 7, discharge outlet; 8, electric push rod; 9, electric heating plate; 10, supporting rod; 11, scraping rod; 12, mounting ring; 13, collecting ring; 14, blanking port; 15, vibration motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a spiral flow guide type sludge dryer.

[0032] In the embodiment, it is disclosed that: outer cylinder body 1, the inner bottom surface of outer cylinder body 1 is fixedly provided with inner cylinder body 2, and the upper end of inner cylinder body 2 is fixedly installed with double-head motor 3, the lower end output shaft of double-head motor 3 penetrates the inner top surface of inner cylinder body 2, and the lower end output shaft of double-head motor 3 is fixedly connected with center pole 4, and the outer side surface of center pole 4 is fixedly provided with spiral blade 5, the lower end outer surface of inner cylinder body 2 is provided with feed inlet 6, and the upper end outer surface of inner cylinder body 2 is provided with discharge outlet 7, the inner bottom surface of outer cylinder body 1 is fixedly provided with electric push rod 8, and the upper end of electric push rod 8 is fixedly connected with electric heating plate 9, the inner side surface of outer cylinder body 1 is fixedly provided with supporting rod 10;

[0033] The outer cylinder 1, the inner cylinder 2 and the center rod 4 are concentric designs, the lower end of the spiral blade 5 is attached to the inner bottom surface of the inner cylinder 2, and the upper end of the spiral blade 5 is attached to the inner top surface of the inner cylinder 2, and the outer side surface of the spiral blade 5 is attached to the inner side surface of the inner cylinder 2;

[0034] The lower surface of the electric heating plate 9 is attached to the upper end surface of the supporting rod 10, and the upper surface of the electric heating plate 9 is flush with the lower end of the discharge port 7, and there is a gap between the outer side surface of the electric heating plate 9 and the inner side surface of the outer cylinder 1;

[0035] The double-head motor 3 is started, the lower end output shaft drives the center rod 4 to rotate, and the spiral blade 5 fixed on the outer side of the center rod 4 rotates, because the outer cylinder 1, the inner cylinder 2 and the center rod 4 are concentric, and the spiral blade 5 is attached to each surface of the inner cylinder 2, when the spiral blade 5 rotates, the sludge in the outer cylinder 1 is sucked into the inner cylinder 2 from the inlet 6 under the push of the spiral blade 5, and is transported upward along the inner cylinder 2, after reaching the discharge port 7, the sludge overflows to the surface of the electric heating plate 9, due to the action of gravity, the sludge flows on the electric heating plate 9, and the excess sludge flows back to the outer cylinder 1 through the gap between the electric heating plate 9 and the outer cylinder 1, realizing the flow guiding and transporting of the sludge;

[0036] The electric heating plate 9 is powered and heated to dry the sludge on its surface, the lower surface of the electric heating plate 9 is supported by the supporting rod 10, and the upper surface is flush with the lower end of the discharge port 7, which ensures that the sludge can flow smoothly from the discharge port 7 to the electric heating plate 9, and the gap between the outer side of the electric heating plate 9 and the outer cylinder 1 does not affect the drying effect and the sludge backflow.

[0037] Example two: based on example one, the upper end of the outer cylinder 1 is provided with a scraping mechanism, which ensures the efficient work of the electric heating plate 9 by quickly scraping the caked sludge;

[0038] The scraping mechanism includes a scraper 11 fixedly arranged on the upper end output shaft of the double-head motor 3, an installation ring 12 fixedly arranged on the outer side surface of the outer cylinder 1, a sliding collection ring 13 installed on the outer side surface of the outer cylinder 1 above the installation ring 12, a discharge port 14 fixedly arranged on one end of the collection ring 13, and a vibration motor 15 fixedly installed on the upper surface of one end of the installation ring 12;

[0039] The scraper 11 is arc-shaped, the lower end surface of the scraper 11 is attached to the upper end surface of the outer cylinder 1, and the scraper 11 is distributed at equal angles;

[0040] Springs are connected between the installation ring 12 and the collection ring 13, and the installation ring 12 and the collection ring 13 are both inclined, and the end of the collection ring 13 where the discharge port 14 is located is lower than the other end of the collection ring 13;

[0041] The vibration motor 15 is located below the higher end of the collecting ring 13, and the upper end of the vibration motor 15 is attached to the lower surface of the collecting ring 13;

[0042] When the electric heating plate 9 completes the drying of the sludge, the electric push rod 8 is started to push the electric heating plate 9 to rise to the upper end surface of the outer cylinder 1, at this time, the upper end output shaft of the double-head motor 3 drives the scraper rod 11 to rotate, since the scraper rod 11 is arc-shaped and the lower end surface is attached to the upper end surface of the outer cylinder 1, during the rotation process, the scraper rod 11 can scrape off the dried sludge on the surface of the electric heating plate 9, avoiding the influence of the dried sludge on the drying efficiency of the sludge on the electric heating plate 9;

[0043] The dried sludge scraped off by the scraper rod 11 is gradually pushed out to the outside of the outer cylinder 1 under the action of the arc-shaped design of the scraper rod 11, and the collecting ring 13 outside the outer cylinder 1 collects the dried sludge, after the vibration motor 15 is started, the vibration motor 15 drives the collecting ring 13 to reciprocate, since the installation ring 12 and the collecting ring 13 are inclined, and the end where the material falling port 14 is located is lower than the other end, under the action of vibration, the dried sludge in the collecting ring 13 is discharged to the outside through the material falling port 14, avoiding the accumulation of the sludge in the collecting ring 13, realizing the convenient collection and cleaning of the dried sludge.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A spiral-guided sludge dryer, comprising an outer cylinder (1), wherein an inner cylinder (2) is fixedly disposed on the inner bottom surface of the outer cylinder (1), and a double-headed motor (3) is fixedly installed at the upper end of the inner cylinder (2), characterized in that: The lower output shaft of the dual-head motor (3) passes through the inner top surface of the inner cylinder (2), and the lower output shaft of the dual-head motor (3) is fixedly connected to a central rod (4), and a spiral blade (5) is fixedly provided on the outer surface of the central rod (4). The lower outer surface of the inner cylinder (2) is provided with a feed inlet (6), and the upper outer surface of the inner cylinder (2) is provided with a discharge outlet (7). The inner bottom surface of the outer cylinder (1) is fixedly provided with an electric push rod (8), and the upper end of the electric push rod (8) is fixedly connected with a heating plate (9). The inner surface of the outer cylinder (1) is fixedly provided with a support rod (10), and the upper end of the outer cylinder (1) is provided with a scraping mechanism to ensure the efficient operation of the heating plate (9) by quickly scraping away the clumps of sludge.

2. The spiral flow-guided sludge dryer according to claim 1, characterized in that: The scraping mechanism includes: a scraper (11), which is fixedly mounted on the upper output shaft of the double-head motor (3), an installation ring (12) is fixedly mounted on the outer surface of the outer cylinder (1), and a sliding collection ring (13) is mounted on the outer surface of the outer cylinder (1) above the installation ring (12), a material drop port (14) is fixedly mounted on one end of the collection ring (13), and a vibration motor (15) is fixedly mounted on the upper surface of one end of the installation ring (12).

3. The spiral flow-guided sludge dryer according to claim 1, characterized in that: The outer cylinder (1), inner cylinder (2) and center rod (4) are concentrically designed. The lower end of the spiral blade (5) is in contact with the inner bottom surface of the inner cylinder (2), and the upper end of the spiral blade (5) is in contact with the inner top surface of the inner cylinder (2). The outer surface of the spiral blade (5) is in contact with the inner surface of the inner cylinder (2).

4. The spiral flow-guided sludge dryer according to claim 1, characterized in that: The lower surface of the heating plate (9) is in contact with the upper end of the support rod (10), and the upper surface of the heating plate (9) is flush with the lower end of the discharge port (7). A gap is left between the outer surface of the heating plate (9) and the inner surface of the outer cylinder (1).

5. A spiral-guided sludge dryer according to claim 2, characterized in that: The scraper (11) is arc-shaped, and the lower end face of the scraper (11) is in contact with the upper end face of the outer cylinder (1), and the scraper (11) is distributed at equal angles.

6. A spiral-guided sludge dryer according to claim 2, characterized in that: A spring is connected between the mounting ring (12) and the collecting ring (13), and both the mounting ring (12) and the collecting ring (13) are inclined. One end of the collecting ring (13) where the discharge port (14) is located is lower than the other end of the collecting ring (13).

7. A spiral-guided sludge dryer according to claim 2, characterized in that: The vibration motor (15) is located below the higher end of the collecting ring (13), and the upper end of the vibration motor (15) is in contact with the lower surface of the collecting ring (13).