Anti-viscous sludge drying machine

Abstract

The utility model belongs to the technical field of sludge drying, and particularly discloses an anti-sticking sludge drying machine which comprises a sludge inlet box, a sludge scraping plate and a heating transmission box, the sludge feeding box is hollow and is in a shape with an opening in the upper part, supporting shafts are arranged on the left side and the right side of the middle part of an inner cavity of the sludge feeding box, and a driving mechanism is arranged on the front wall of the sludge feeding box and is used for driving the two supporting shafts to rotate reversely. The two strip cutting rollers extrude the falling sludge, so that the falling sludge is uniformly divided into strip-shaped sludge, the sludge is prevented from being accumulated on the surface of the hollowed-out conveying belt, the size of the strip-shaped sludge is set to be larger than that of the hollowed-out holes of the hollowed-out conveying belt, and the strip-shaped sludge is prevented from falling off. By arranging the sludge scraping plate, more sludge is prevented from remaining on the surface of the strip cutting roller, so that strip cutting can be normally carried out, and when the strip-shaped sludge is conveyed to the right side on the hollowed-out conveying belt, due to the fact that the hollowed-out conveying belt needs to be rotated and bent, the dried sludge is separated from the surface of the hollowed-out conveying belt.

Description

Technical Field

[0001] This utility model relates to the field of sludge drying technology, specifically to an anti-sticking sludge dryer. Background Technology

[0002] In wastewater treatment, the settled sludge is usually dried before being used for landfilling, incineration, fertilizer production, brick making, and other applications.

[0003] Some current sludge dryers use a stirring and heating method to dry the sludge. The sludge is placed in a stirring drum, which is equipped with a heating system. During the stirring process, the sludge is heated, causing moisture to evaporate and resulting in dry sludge with a relatively low moisture content. Other dryers use a conveyor belt to transport the sludge, heating the sludge on the conveyor belt to achieve the same drying effect.

[0004] Because dried sludge tends to clump together, it can easily stick to the inside of the mixing equipment or the conveyor belt, making it difficult to remove. Utility Model Content

[0005] The purpose of this invention is to provide an anti-sticking sludge dryer to solve the problem mentioned in the background art that dried sludge is not easy to detach.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-sticking sludge dryer, comprising:

[0007] The mud inlet box is hollow and open at the top. Support shafts are provided on the left and right sides of the inner cavity of the mud inlet box. A driving mechanism is provided on the front wall of the mud inlet box. The driving mechanism is used to drive the two support shafts to rotate in opposite directions. A cutting roller is provided on the outer wall of the support shaft. The cutting roller is located inside the mud inlet box, and cutting grooves are circumferentially opened on the outer wall of the cutting roller on both sides.

[0008] The scraper has insertion slots on both the left and right side walls of the mud inlet box. The scraper is inserted into the insertion slots and contacts the cutting groove on the surface of the cutting roller.

[0009] A heating transmission box is connected to the lower right side of the mud inlet box. The right side of the heating transmission box is the mud outlet. Both the left and right sides of the interior of the heating transmission box are equipped with transmission shafts. Transmission rollers are installed on the outer walls of the two transmission shafts. A perforated conveyor belt is connected between the outer walls of the two transmission rollers. A transmission motor is installed on the outer wall of the mud inlet box and connected to the end of one of the transmission shafts. The left transmission shaft is located below the left cutting roller. An electric heating structure is installed inside the heating transmission box.

[0010] Preferably, an inner protective frame is provided at the upper opening of the mud inlet box.

[0011] Preferably, the front ends of the left and right support shafts extend to the outside of the mud inlet box. The drive mechanism includes gears disposed at the front ends of the support shafts, with two gears meshing. The drive mechanism also includes a cutting drive motor installed on the front side of the mud inlet box. The output shaft of the cutting drive motor and the front end of one of the support shafts are both connected to pulleys, and the two pulleys are connected by a belt.

[0012] Preferably, the scraper includes a pick-and-place handle, with connecting plates at both the front and rear ends of the pick-and-place handle. Insertable scraper blocks are evenly arranged on the left side of the pick-and-place handle, and the insertable scraper blocks are inserted into and cooperate with each cutting groove. The connecting plates are connected to the outer wall of the mud inlet box by screws.

[0013] Preferably, the electric heating structure is a resistance heating wire, and the electric heating structure is configured as a reciprocating bending shape, and the outer wall of the heating transmission box is provided with terminals for connecting to the electric heating structure.

[0014] Preferably, the upper surface of the heating transmission box is open, and a protective mesh plate is provided at the upper opening of the heating transmission box.

[0015] Preferably, a lower mud discharge scraper is provided on the lower side of the mud outlet on the right side of the heating transmission box. The upper part of the lower mud discharge scraper is flat and contacts the right side of the outer wall of the perforated conveyor belt.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This solution uses two cutting rollers to compress the falling sludge, thus evenly dividing the falling sludge into strips, preventing sludge from accumulating on the surface of the perforated conveyor belt. Furthermore, the size of the strips is set to be larger than the perforations of the perforated conveyor belt to prevent the strips of sludge from falling off.

[0018] By setting up the scraper, excessive sludge is avoided from remaining on the surface of the cutting roller, thus allowing the cutting to proceed normally. When the strip-shaped sludge is transported to the right side on the perforated conveyor belt, the dried sludge is separated from the surface of the perforated conveyor belt due to the belt's swirling and bending motion, making it less likely to stick to the belt. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the mud inlet box and the heating transmission box of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the handle, connecting piece, and insert scraper of this utility model.

[0022] In the diagram: 1. Mud inlet box; 2. Heating transmission box; 3. Inner protective frame; 4. Support shaft; 5. Gear; 6. Cutting drive motor; 7. Pulley; 8. Cutting roller; 9. Insertion groove; 10. Pick-up and drop handle; 11. Connecting piece; 12. Insertion scraper; 13. Protective mesh plate; 14. Drive shaft; 15. Drive roller; 16. Hollowed-out conveyor belt; 17. Electric heating structure; 18. Lower mud discharge scraper; 19. Drive motor; 20. Terminal block. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example 1:

[0026] Please see Figure 1-3This utility model provides a technical solution: an anti-sticking sludge dryer, comprising: a sludge inlet box 1, a scraper, and a heating transmission box 2; the sludge inlet box 1 is hollow and open at the top, with support shafts 4 on both the left and right sides of the inner cavity of the sludge inlet box 1, and a driving mechanism on the front wall of the sludge inlet box 1 for driving the two support shafts 4 to rotate in opposite directions, with a cutting roller 8 on the outer wall of the support shaft 4, the cutting roller 8 being located inside the sludge inlet box 1, and cutting grooves being circumferentially formed on the outer walls of the cutting rollers 8 on both sides, and insertion grooves 9 being formed on the left and right side walls of the sludge inlet box 1, through which the scraper inserts... The material is inserted into the insertion groove 9 and contacts the cutting groove on the surface of the cutting roller 8. The heating transmission box 2 is connected to the lower right side of the mud inlet box 1. The right side of the heating transmission box 2 is the mud outlet. The heating transmission box 2 has a transmission shaft 14 on both the left and right sides inside. The outer walls of the two transmission shafts 14 are equipped with transmission rollers 15. A perforated conveyor belt 16 is connected between the outer walls of the two transmission rollers 15. The outer wall of the mud inlet box 1 is equipped with a transmission motor 19 connected to the end of one of the transmission shafts 14. The left transmission shaft 14 is located below the left cutting roller 8. The heating transmission box 2 has an electric heating structure 17 inside.

[0027] Analysis of the above content: Sludge enters the sludge inlet box 1 through the upper opening of the sludge inlet box 1. The drive mechanism rotates the two support shafts 4 and the cutting rollers 8 on the support shafts 4. The two cutting rollers 8 rotate in opposite directions and the rotation direction is set so that when the cutting rollers 8 rotate, they cut the falling sludge into the cutting groove between the two cutting rollers 8, thereby forming multiple sludge strips. The sludge strips fall onto the perforated conveyor belt 16 and are transported from left to right under the perforated conveyor belt 16. At the same time, the electric heating structure 17 heats the sludge strips on the perforated conveyor belt 16, causing them to lose moisture and obtain relatively dry sludge. Finally, the dry sludge is discharged from the sludge outlet on the right side of the heated transmission box 2.

[0028] Example 2:

[0029] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: an inner protective frame 3 is provided at the upper opening of the mud inlet box 1.

[0030] Analysis of the above content: The inner protective frame 3 reduces the size of the upper opening of the sludge inlet box 1, preventing sludge from falling into the edge of the cutting roller 8 and affecting the sludge cutting operation.

[0031] Example 3:

[0032] Please see Figure 1-3This utility model provides a technical solution based on Embodiment 1: the front ends of the left and right support shafts 4 extend to the outside of the mud inlet box 1, the driving mechanism includes a gear 5 disposed at the front end of the support shaft 4, the two gears 5 meshing with each other, the driving mechanism also includes a cutting drive motor 6 installed on the front side of the mud inlet box 1, the output shaft of the cutting drive motor 6 and the front end of one of the support shafts 4 are both connected to pulleys 7, and the two pulleys 7 are connected by a belt.

[0033] Analysis of the above content: In use, the output end of the cutting drive motor 6 is transmitted through the pulleys 7, causing the corresponding support shaft 4 to rotate. The two support shafts 4 are transmitted through the meshing of two gears 5, causing the two support shafts 4 and the two cutting rollers 8 on them to rotate.

[0034] Example 4:

[0035] Please see Figure 1-3 The present invention provides a technical solution based on Embodiment 1: the scraper includes a pick-up and put-down handle 10, and connecting pieces 11 are provided at both the front and rear ends of the pick-up and put-down handle 10. Insert scraper blocks 12 are evenly arranged on the left side of the pick-up and put-down handle 10. The insert scraper blocks 12 are inserted and cooperate with each cutting groove. The connecting pieces 11 are connected to the outer wall of the mud inlet box 1 by screws.

[0036] Analysis of the above content: In use, the handle 10 is held to insert the scraper 12 into the sludge inlet box 1 until the connecting piece 11 is in contact with the outer wall of the sludge inlet box 1. Then, it is connected to the outer wall of the sludge inlet box 1 by screws. At this time, the scraper 12 contacts the cutting groove on the outer wall of the cutting roller 8. When there is residual sludge in the cutting groove, it can scrape off the sludge. The left cutting roller 8 rotates clockwise and the right cutting roller 8 rotates counterclockwise. In this way, the falling sludge can be squeezed into strips in the middle, and the rotation direction causes the scraper 12 to scrape the sludge down from the cutting roller 8. After a certain amount of sludge accumulates, the sludge falls down under its own weight.

[0037] Example 5:

[0038] Please see Figure 1-3 This utility model provides a technical solution based on Embodiment 1: the electric heating structure 17 is a resistance heating wire, and the electric heating structure 17 is configured as a reciprocating bending shape, and the outer wall of the heating transmission box 2 is provided with a terminal 20 connected to the electric heating structure 17.

[0039] Analysis of the above content: Terminal 20 plus the existing heating controller and power supply structure.

[0040] Example 6:

[0041] Please see Figure 1-3Based on Embodiment 1, this utility model provides a technical solution: the upper surface of the heating transmission box 2 is open, and a protective mesh plate 13 is provided at the upper opening of the heating transmission box 2.

[0042] Analysis of the above content: The protective mesh plate 13 provides protection from the top and does not affect the output of water vapor that is heated and evaporated.

[0043] Embodiment seven:

[0044] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: a lower mud discharge scraper 18 is provided on the lower side of the mud discharge port on the right side of the heating transmission box 2. The upper part of the lower mud discharge scraper 18 is flat and the upper part of the lower mud discharge scraper 18 is in contact with the right side of the outer wall of the hollow conveyor belt 16.

[0045] Analysis of the above content: The lower mud scraper 18 contacts the right side of the outer wall of the perforated conveyor belt 16 but does not press too hard, so it will not affect the operation of the perforated conveyor belt 16. At the same time, the lower mud scraper 18 can scrape off the mud strips on the outer wall of the perforated conveyor belt 16, further preventing mud strips from remaining.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-sticking sludge dryer, characterized in that: include: A mud inlet box (1), the mud inlet box (1) is hollow and has an upper opening, support shafts (4) are arranged on the left and right sides of the middle of the inner cavity of the mud inlet box (1), a driving mechanism is arranged on the front wall of the mud inlet box (1), the driving mechanism is used to drive the two support shafts (4) to rotate in opposite directions, a slitting roller (8) is arranged on the outer wall of the support shaft (4), the slitting roller (8) is located in the mud inlet box (1), and slitting grooves are circumferentially opened at corresponding positions on the outer walls of the slitting rollers (8) on both sides; A scraper blade, wherein the left and right side walls of the mud inlet box (1) are both provided with a plug-in groove (9), and the scraper blade is inserted into the plug-in groove (9) and contacts the slitting groove on the surface of the slitting roller (8); A heating transmission box (2) is connected to the lower right side of the mud inlet box (1), the right side of the heating transmission box (2) is a mud outlet, transmission shafts (14) are arranged on the left and right sides of the interior of the heating transmission box (2), transmission rollers (15) are installed on the outer walls of the two transmission shafts (14), a hollow transmission belt (16) is connected between the outer walls of the two transmission rollers (15), a transmission motor (19) connected to the end of one of the transmission shafts (14) is arranged on the outer wall of the mud inlet box (1), the left transmission shaft (14) is located on the lower side of the left strip cutting roller (8), and an electric heating structure (17) is arranged inside the heating transmission box (2).

2. The anti-sticking sludge dryer according to claim 1, characterized in that: An inner protective frame (3) is provided at the upper opening of the mud inlet box (1).

3. The anti-sticking sludge dryer according to claim 1, characterized in that: The front ends of the support shafts (4) on the left and right sides extend to the outside of the mud inlet box (1); the driving mechanism comprises a gear (5) arranged at the front end of the support shaft (4); the two gears (5) are meshed with each other; the driving mechanism also comprises a strip cutting drive motor (6) installed on the front side of the mud inlet box (1); the output shaft of the strip cutting drive motor (6) and the front end of one of the support shafts (4) are both connected to a pulley (7); the two pulleys (7) are connected by a belt.

4. The anti-sticking sludge dryer according to claim 1, characterized in that: The scraper blade comprises a pick-up and placement handle (10), the front and rear ends of the pick-up and placement handle (10) are both provided with connecting pieces (11), the left side of the pick-up and placement handle (10) is evenly provided with plug-in scraper blocks (12), the plug-in scraper blocks (12) are inserted into and matched with each cutting groove, and the connecting piece (11) is connected to the outer wall of the mud inlet box (1) by means of screws.

5. The anti-sticking sludge dryer according to claim 1, characterized in that: The electric heating structure (17) is a resistance heating wire, and the electric heating structure (17) is arranged in a reciprocating bending shape. A terminal (20) connected to the electric heating structure (17) is arranged on the outer wall of the heating transmission box (2).

6. The anti-sticking sludge dryer according to claim 1, characterized in that: The upper surface of the heating transmission box (2) is open, and a protective mesh plate (13) is provided at the upper opening of the heating transmission box (2).

7. The anti-sticking sludge dryer according to claim 1, characterized in that: A lower mud scraper (18) is provided at the lower side of the right mud outlet of the heating transmission box (2); the upper portion of the lower mud scraper (18) is flat, and the upper portion of the lower mud scraper (18) contacts the right side of the outer wall of the hollow conveyor belt (16).

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