A sludge drying device convenient for cleaning dry sludge

Abstract

The utility model provides a sludge drying device which is convenient for cleaning dry sludge, comprising a box body, a feed port, an air inlet and an air outlet are arranged on the top of the box body, a first discharge port is arranged on the bottom of the box body, a discharge valve is arranged on the first discharge port, a first drive motor is arranged on the top of the box body, an output shaft of the drive motor is connected with a threaded screw, one end of the threaded screw passes through the top of the box body and extends into the box body, a nut is threadedly connected on the threaded screw, a cleaner is sleeved on the nut, the cleaner comprises a fixing ring sleeved on the nut, a cleaning ring connected to the fixing ring through a plurality of connecting rods, the cleaning ring is slidably connected to the inner side wall of the box body in a vertical direction, and the fixing ring is coaxially arranged with the cleaning ring; cleaning the sludge attached to the inner side wall of the box body can prevent the sludge from adhering to the inner side wall of the box body.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature sludge drying equipment, in particular to a sludge drying device which is convenient for cleaning dry sludge. Background Art

[0002] Sludge drying, also known as sludge dehydration, refers to the process of removing most of the water content from sludge through infiltration or evaporation, generally referring to the use of self-evaporation facilities such as sludge drying plants. After the sludge is concentrated, the water content of the sludge is further reduced by physical methods to facilitate the transportation, accumulation, utilization or further treatment of the sludge. There are two types of dehydration: natural evaporation and mechanical dehydration. It is customary to call mechanical dehydration sludge dehydration and natural evaporation sludge drying.

[0003] In the prior art, air flow is generally used to dry sludge. The air flow usually needs to be heated and then input into the drying equipment to heat and evaporate the sludge in the dryer. In this process, the sludge adheres to the inner wall of the drying equipment after drying, affecting the normal use of the drying equipment. Utility Model Content

[0004] In view of the above problems in the prior art, the utility model provides a sludge drying device which is convenient for cleaning dry sludge, and solves the problem in the prior art that sludge adheres to the inner wall of the drying equipment after drying, affecting the normal use of the drying equipment.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A sludge drying device which is convenient for cleaning dry sludge is provided, comprising a box body, a feed port, an air inlet and an air outlet are arranged on the top of the box body, a first discharge port is arranged on the bottom of the box body, a discharge valve is arranged on the first discharge port, a first drive motor is arranged on the top of the box body, a threaded screw is connected to the output shaft of the drive motor, one end of the threaded screw passes through the top of the box body and extends into the box body, a nut is threadedly connected to the threaded screw, a cleaner is sleeved on the nut, the cleaner comprises a fixing ring sleeved on the nut, a cleaning ring connected to the fixing ring through a plurality of connecting rods, the cleaning ring is slidably connected to the inner side wall of the box body in a vertical direction, and the fixing ring and the cleaning ring are coaxially arranged.

[0007] In some embodiments, two sliders are symmetrically arranged on one side of the cleaning ring away from the fixed ring, and two slide grooves are symmetrically arranged on the inner wall of the box body in the vertical direction. The cleaning ring extends into the corresponding slide groove through the slider and is slidably connected to the inner wall of the box body in the vertical direction.

[0008] In some embodiments, a scraper is disposed at the bottom of the cleaning ring around the cleaning ring.

[0009] In some embodiments, a plurality of cutting rings with different diameters are disposed on the connecting rod, the cutting rings are located between the fixing ring and the cleaning ring, and the plurality of cutting rings are coaxially disposed with the cleaning ring.

[0010] In some embodiments, a limit block is provided at one end of the threaded screw.

[0011] In some embodiments, a feeding bin is provided at the bottom of the box body, and two crushing rollers are installed in the feeding bin below the first discharge port, and both ends of the crushing rollers are rotatably connected to the feeding bin through a rotating shaft, and the rotating shaft at one end of one of the crushing rollers is fixedly connected to the output shaft of the second drive motor, and the second drive motor is fixedly installed on the outer wall of the feeding bin, and the rotating shafts at the other ends of the two crushing rollers extend to the outside of the feeding bin and are equipped with gears, and the two gears are meshed with each other, and a second discharge port is provided at the bottom of the feeding bin.

[0012] The beneficial effects of the utility model are:

[0013] The sludge is added into the box through the feed port, and the heated airflow is introduced into the box through the air inlet to dry the sludge at a low temperature, and the airflow is discharged from the box through the air outlet. The threaded screw is driven to rotate forward by the first drive motor, and the nut is driven to move vertically downward on the threaded screw, and the nut drives the cleaner to move vertically downward. The threaded screw is driven to rotate reversely by the first drive motor, and the nut is driven to move vertically upward on the threaded screw, and the cleaner is driven to move vertically up and down by the nut to stir the sludge, so that the sludge is heated evenly and the sludge drying efficiency is accelerated. After the sludge is dried, the discharge valve set at the first discharge port is opened to allow the dried sludge to be discharged through the first discharge port. The threaded screw is driven by the first driving motor to rotate forward, driving the nut to move vertically downward on the threaded screw. The fixing ring is fixedly connected to the nut, and the fixing ring is coaxially connected to the cleaning ring through a connecting rod. The cleaning ring is slidably connected to the inner wall of the box body along the vertical direction, so that during the rotation of the threaded screw, the nut can move up and down in the vertical direction, and the cleaning ring contacts the inner wall of the box body. Driven by the nut, the cleaning ring clears the sludge attached to the inner wall of the box body and can be reset after cleaning, thereby preventing the sludge from adhering to the inner wall of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A longitudinal cross-sectional view provided for an embodiment of the present application;

[0015] Figure 2 A transverse cross-sectional view provided for an embodiment of the present application;

[0016] Figure 3 for Figure 1 A is a partial enlarged schematic diagram;

[0017] Figure 4 Another longitudinal cross-sectional view provided for an embodiment of the application;

[0018] Figure 5 A schematic diagram of the structure provided for an embodiment of the present application;

[0019] Among them, 1. box body; 2. feed port; 3. air inlet; 4. air outlet; 5. first discharge port; 6. discharge valve; 7. first drive motor; 8. threaded screw; 9. nut; 10. fixing ring; 11. connecting rod; 12. cleaning ring; 13. slider; 14. slide; 15. scraper; 16. cutting ring; 17. limit block; 18. feeding bin; 19. crushing roller; 20. rotating shaft; 21. gear; 22. second discharge port. DETAILED DESCRIPTION

[0020] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0021] Embodiment 1

[0022] The present application embodiment provides a sludge drying device that is convenient for cleaning dry sludge. Figure 1 , Figure 2 As shown, it includes a box body 1, the top of which is provided with a feed port 2, an air inlet 3 and an air outlet 4, the bottom of the box body 1 is provided with a first discharge port 5, the first discharge port 5 is provided with a discharge valve 6, the top of the box body 1 is provided with a first drive motor 7, the output shaft of the drive motor is connected with a threaded screw 8, one end of the threaded screw 8 passes through the top of the box body 1 and extends into the box body 1, the threaded screw 8 is threadedly connected with a nut 9, the nut 9 is sleeved with a cleaner, the cleaner includes a fixing ring 10 sleeved on the nut 9, and a cleaning ring 12 connected to the fixing ring 10 through a plurality of connecting rods 11, the cleaning ring 12 is slidably connected to the inner side wall of the box body 1 in the vertical direction, and the fixing ring 10 and the cleaning ring 12 are coaxially arranged.

[0023] In the embodiment of the present application, sludge is added into the box body 1 through the feed port 2, and the heated airflow is introduced into the box body 1 through the air inlet 3 to dry the sludge at low temperature, and the airflow is discharged from the box body 1 through the air outlet 4, and the threaded screw 8 is driven to rotate forward by the first drive motor 7, driving the nut 9 to move vertically downward on the threaded screw 8, and the nut 9 drives the cleaner to move vertically downward, and the threaded screw 8 is driven to reverse by the first drive motor 7, driving the nut 9 to move vertically upward on the threaded screw 8, and the nut 9 drives the cleaner to move up and down in the vertical direction to stir the sludge, so that the sludge is heated evenly and the sludge drying efficiency is accelerated. After the sludge is dried, the discharge valve 6 set at the first discharge port 5 is opened, so that the dried sludge can be discharged through the first discharge port 5, and the threaded screw 8 is driven to rotate forward by the first drive motor 7, driving the nut 9 to move vertically downward on the threaded screw 8, and the nut 9 drives the cleaner to move vertically downward. The fixing ring 10 is fixedly connected to the nut 9, and the fixing ring 10 is coaxially connected to the cleaning ring 12 through the connecting rod 11. The cleaning ring 12 is slidably connected to the inner wall of the box body 1 in the vertical direction, so that during the rotation of the threaded screw 8, the nut 9 can move up and down in the vertical direction, and the cleaning ring 12 contacts the inner wall of the box body 1. Driven by the nut 9, the cleaning ring 12 removes the sludge attached to the inner wall of the box body 1 and can be reset after the cleaning is completed, which can prevent the sludge from adhering to the inner wall of the box body 1.

[0024] Among them, Figure 3 As shown, two sliders 13 are symmetrically arranged on one side of the cleaning ring 12 away from the fixing ring 10, and two slide grooves 14 are symmetrically arranged on the inner wall of the box body 1 along the vertical direction. The cleaning ring 12 extends into the corresponding slide grooves 14 through the sliders 13 and is slidably connected with the inner wall of the box body 1 along the vertical direction.

[0025] In the embodiment of the present application, the slider 13 is a square slider 13, the slide groove 14 is a square slide groove 14, and the cleaning ring 12 extends into the corresponding slide groove 14 through the slider 13 and is slidably connected to the inner wall of the box body 1, so that the cleaning ring 12 can slide in the vertical direction.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, Figure 1 As shown, a scraper 15 is arranged around the bottom of the cleaning ring 12 .

[0028] In the embodiment of the present application, a scraper 15 is arranged at the bottom of the cleaning ring 12 and around the cleaning ring 12, so as to facilitate cleaning the inner wall of the box body 1 by the scraper 15, improve the ability to break through obstacles, and reduce the resistance encountered by the cleaning ring 12.

[0029] Embodiment 3

[0030] On the basis of the first embodiment, Figure 2 As shown, a plurality of cutting rings 16 with different diameters are arranged on the connecting rod 11 , and the cutting ring 16 is located between the fixing ring 10 and the cleaning ring 12 . The plurality of cutting rings 16 are coaxially arranged with the cleaning ring 12 .

[0031] In the embodiment of the present application, a plurality of cutting rings 16 with different diameters are arranged on the connecting rod 11, and the cutting rings 16 are all arranged between the positioning ring and the cleaning ring 12, and the cutting rings 16 are all arranged coaxially with the cleaning ring 12. On the one hand, the efficiency of sludge stirring can be improved by the cutting rings 16, and on the other hand, after the drying is completed, the dried sludge can be cut by the cooperation of the cutting rings 16 and the connecting rod 11, so that the dried sludge can be discharged through the first discharge port 5.

[0032] Embodiment 4

[0033] On the basis of the first embodiment, Figure 1 As shown, a limit block 17 is provided at one end of the threaded screw 8 .

[0034] In the embodiment of the present application, a limit block 17 is provided at one end of the threaded screw 8 to facilitate limiting the nut 9 through the limit block 17 to prevent the nut 9 from falling off the threaded screw 8.

[0035] Embodiment 5

[0036] On the basis of the first embodiment, Figure 4 , Figure 5 As shown, a feeding bin 18 is provided at the bottom of the box body 1, and two crushing rollers 19 located below the first discharge port 5 are installed in the feeding bin 18, and both ends of the crushing rollers 19 are rotatably connected to the feeding bin 18 through a rotating shaft 20, and the rotating shaft 20 at one end of one of the crushing rollers 19 is fixedly connected to the output shaft of a second drive motor (not shown in the figure), and the second drive motor is fixedly installed on the outer wall of the feeding bin 18, and the rotating shafts 20 at the other ends of the two crushing rollers 19 extend to the outside of the feeding bin 18 and are equipped with gears 21, and the two gears 21 are meshed with each other. A second discharge port 22 is provided at the bottom of the feeding bin 18.

[0037] In the embodiment of the present application, a feeding bin 18 is provided at the bottom of the box body 1, and the sludge in the box body 1 falls into the discharge bin through the first discharge port 5. One of the crushing rollers 19 is driven to rotate by the second drive motor, and the other crushing roller 19 is driven to rotate by the gear 21. The dried sludge that falls into the discharge bin is crushed by the rotation of the two crushing rollers 19, and the dried sludge after crushing is discharged through the second discharge port 22, which is convenient for subsequent treatment of the sludge.

[0038] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the equivalent technology of the claims of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. A sludge drying device for cleaning dry sludge, characterized in that: It includes a box body, the top of which is provided with a feed port, an air inlet and an air outlet, the bottom of the box body is provided with a first discharge port, the first discharge port is provided with a discharge valve, the top of the box body is provided with a first drive motor, the output shaft of the drive motor is connected with a threaded screw, one end of the threaded screw passes through the top of the box body and extends into the box body, a nut is threadedly connected to the threaded screw, a cleaner is sleeved on the nut, the cleaner includes a fixing ring sleeved on the nut, a cleaning ring connected to the fixing ring through a plurality of connecting rods, the cleaning ring is slidably connected to the inner side wall of the box body in a vertical direction, and the fixing ring and the cleaning ring are coaxially arranged.

2. A sludge drying device for facilitating the cleaning of dry sludge according to claim 1, characterized in that: The cleaning ring is symmetrically provided with two slide blocks on one side away from the fixing ring, and the inner side wall of the box is symmetrically provided with two slide grooves along the vertical direction. The cleaning ring is slidably connected with the inner side wall of the box along the vertical direction by extending the slide blocks into the corresponding slide grooves.

3. A sludge drying device for facilitating the cleaning of dry sludge according to claim 1, characterized in that: A scraper is arranged at the bottom of the cleaning ring around the cleaning ring.

4. A sludge drying device for facilitating the cleaning of dry sludge according to claim 1, characterized in that: The connecting rod is provided with a plurality of cutting rings with different diameters, the cutting rings are located between the fixing ring and the cleaning ring, and the plurality of cutting rings are coaxially arranged with the cleaning ring.

5. The sludge drying device for facilitating the cleaning of dry sludge according to claim 1, characterized in that: A limit block is arranged at one end of the threaded screw.

6. The sludge drying device for facilitating the cleaning of dry sludge according to claim 1, characterized in that: A feeding bin is provided at the bottom of the box body, and two crushing rollers are installed in the feeding bin below the first discharge port. Both ends of the crushing rollers are rotatably connected to the feeding bin through a rotating shaft, and the rotating shaft at one end of one of the crushing rollers is fixedly connected to the output shaft of the second drive motor, and the second drive motor is fixedly installed on the outer wall of the feeding bin. The rotating shafts at the other ends of the two crushing rollers extend to the outside of the feeding bin and are equipped with gears, and the two gears are meshed with each other. A second discharge port is provided at the bottom of the feeding bin.

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