Belt type sludge low-temperature drying equipment utilizing waste heat

Abstract

The utility model relates to the technical field of sludge drying, in particular to belt-type low-temperature sludge drying equipment utilizing waste heat, which has the characteristic of improving practicability and comprises a plurality of supports, a plurality of supports are rotatably connected with rollers through bearings, a conveying belt is arranged on the rollers, a connecting rod is arranged among the left parts of the supports, and the connecting rod is connected with the conveying belt. A cleaning brush is arranged on the connecting rod, a scraping plate is arranged between the left portions of the supports, a connecting plate is arranged between the supports, a plurality of first supporting plates are arranged on the left portion of the connecting plate, a plurality of rotating rods are rotationally connected between the first supporting plates through a plurality of rotating shafts, and a plurality of cutting rollers are arranged on the rotating rods.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge drying, in particular to belt-type sludge low-temperature drying equipment which utilizes waste heat. Background Art

[0002] As we all know, the moisture content of industrial sludge or municipal sludge after chemical conditioning and mechanical dehydration is generally between 65% and 85%. Sludge drying refers to a method of further removing moisture from sludge by various means such as heating and evaporation to reduce the volume of sludge and facilitate further harmless treatment. Waste heat utilization sludge low-temperature drying technology is a type of sludge drying method.

[0003] The patent with application number CN202321869280.0 discloses a belt-type sludge low-temperature drying equipment that utilizes waste heat, which relates to the field of sludge drying technology, and includes a base, a collecting box is fixedly arranged on one side of the base, a frame is also arranged on the upper surface of the base, and a low-temperature dryer is fixedly arranged on the upper surface of the frame, a feed hopper is arranged on one side of the frame, an electric crawler is fixedly arranged on the inner side of the base, a dispersion mechanism is arranged on one side of the frame, and drying components are arranged above and below the electric crawler.

[0004] Although the device can provide the effect of drying the sludge, when the sludge after drying by the device falls into the collection box, due to the large volume of the sludge, the adsorption force between the sludge and the electric crawler machine is large, and some sludge will remain on the surface of the electric crawler machine. The device does not have a device for cleaning the electric crawler machine. Therefore, the sludge will adhere for a long time and form solid solid blocks, which increases the difficulty of subsequent cleaning. Therefore, the practicality is not very good and there is room for improvement. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a belt-type sludge low-temperature drying device that utilizes waste heat, which has the characteristic of improving practicality.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a belt-type sludge low-temperature drying equipment utilizing waste heat, comprising a plurality of brackets, wherein the plurality of brackets are rotatably connected to rollers via bearings, a conveyor belt is arranged on the roller, a connecting rod is arranged between the left parts of the plurality of brackets, a cleaning brush is arranged on the connecting rod, a scraper is arranged between the left parts of the plurality of brackets, a connecting plate is arranged between the plurality of brackets, a plurality of first support plates are arranged on the left part of the connecting plate, a plurality of rotating rods are rotatably connected to the plurality of first support plates via a plurality of rotating shafts, and a plurality of cutting rollers are arranged on the plurality of rotating rods.

[0009] Furthermore, the outer edges of the plurality of cutting rollers are all pointed, and gaps are provided between the lower portions of the plurality of cutting rollers and the upper end surfaces of the conveyor belt.

[0010] Furthermore, the upper end surface of the cleaning brush fits the lower end surface of the conveyor belt, and the cleaning brush is made of wear-resistant material.

[0011] Furthermore, the upper end surface of the scraper is in contact with the lower end surface of the conveyor belt, and a collection box is provided on the left side of several of the brackets.

[0012] Preferably, several second support plates are arranged on the right part of several of the brackets, funnels are arranged between several of the second support plates, several third support plates are arranged on the right part of the brackets, and several of the third support plates are rotatably connected with flattening wheels through rotating shafts.

[0013] Preferably, a fourth supporting plate is provided in the middle of the connecting plate, a drying device is provided on the fourth supporting plate, exhaust pipes are provided on both sides of the drying device, and nozzles are provided on several exhaust pipes.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a belt-type sludge low-temperature drying device utilizing waste heat, which has the following beneficial effects:

[0016] The belt-type sludge low-temperature drying equipment that utilizes waste heat cuts the sludge into small pieces by cutting rollers, and squeezes the sludge to displace part of the sludge, thereby reducing the adhesion of the sludge to the conveyor belt. After the sludge falls into the collection box, the amount of sludge attached to the conveyor belt is reduced, and the larger particles on the surface of the conveyor belt are scraped off by the scraper, and the sludge on the surface is cleaned by friction with the cleaning brush, thereby reducing the difficulty of later cleaning and improving a certain degree of practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the utility model after removing the diameter of the left front part;

[0019] Figure 3 It is a structural schematic diagram of the utility model.

[0020] In the figure: 1. bracket; 2. conveyor belt; 3. cleaning brush; 4. scraper; 5. connecting plate; 6. first support plate; 7. cutting roller; 8. second support plate; 9. funnel; 10. third support plate; 11. flattening wheel; 12. fourth support plate; 13. drying device; 14. exhaust pipe; 15. collecting box. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3The utility model is a belt-type sludge low-temperature drying equipment using waste heat, comprising several brackets 1, several brackets 1 are rotatably connected with rollers through bearings, conveyor belts 2 are arranged on the rollers, and the conveyor belts 2 are used to convey sludge. Several second support plates 8 are arranged on the right part of the several brackets 1, and funnels 9 are arranged between the several second support plates 8. The sludge in the funnels 9 falls onto the conveyor belt 2, and several third support plates 10 are arranged on the right part of the bracket 1. Several third support plates 10 are rotatably connected with flattening wheels 11 through rotating shafts. When the conveyor belt 2 drives the sludge to move, it collides with the flattening wheels 11. At this time The flattening wheel 11 rotates driven by the sludge to flatten the sludge. A fourth support plate 12 is provided in the middle of the connecting plate 5. A drying device 13 is provided on the fourth support plate 12. Exhaust pipes 14 are provided on both sides of the drying device 13. Several exhaust pipes 14 are provided with nozzles. The drying device 13 is started. The drying device 13 transports hot air into the exhaust pipe 14 and sprays it through several nozzles to dry the sludge on the conveyor belt 2. A connecting rod is provided between the left parts of the several brackets 1. A cleaning brush 3 is provided on the connecting rod. The upper end surface of the cleaning brush 3 and the conveyor belt 2 are in contact with each other. The lower end faces are in contact with each other, and the cleaning brush 3 rubs against the rotating conveyor belt 2 to clean the conveyor belt 2, reducing the difficulty of later cleaning. The cleaning brush 3 is made of wear-resistant material to increase its service life. A scraper 4 is arranged between the left parts of several brackets 1. The upper end face of the scraper 4 is in contact with the lower end face of the conveyor belt 2. The scraper 4 hangs off the sludge remaining on the surface of the conveyor belt 2. A collecting box 15 is arranged on the left part of several brackets 1 for collecting the sludge transported by the conveyor belt 2. A connecting plate 5 is arranged between several brackets 1. Several first support plates 6 are arranged on the left part of the connecting plate 5. Several rotating rods are rotatably connected between the first support plates 6 through several rotating shafts, and several cutting rollers 7 are arranged on the several rotating rods. When the conveyor belt 2 is conveying sludge, it comes into contact with the several cutting rollers 7. The cutting rollers 7 cut the sludge on the conveyor belt 2 and divide the sludge into small pieces, so that the sludge and the conveyor belt 2 become loose, which is convenient for the sludge to fall off the conveyor belt 2. The outer edges of the several cutting rollers 7 are all set with pointed ends, which is convenient for the cutting rollers 7 to cut the sludge. A gap is set between the lower parts of the several cutting rollers 7 and the upper end surface of the conveyor belt 2 to prevent the cutting rollers 7 from rubbing against the conveyor belt 2.

[0023] To sum up, when the belt-type sludge low-temperature drying equipment utilizing waste heat is in use, the staff transports the sludge into the funnel 9 and it falls onto the conveyor belt 2. During the period when the conveyor belt 2 transports the sludge, the hot air generated by the drying device 13 enters the exhaust pipe 14 and is blown onto the sludge through the nozzle for drying. The dried sludge collides with the cutting roller 7, and the cutting roller 7 cuts the sludge. The sludge cut into small pieces is squeezed and loosened, and then falls into the collecting box 15. Then the larger sludge remaining on the surface of the conveyor belt 2 is hung up by the scraper 4, and then when it moves to the cleaning brush 3, it rubs against the cleaning brush 3, and the fine sludge on the surface is cleaned by the cleaning brush 3.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt-type sludge low-temperature drying device utilizing waste heat, comprising a plurality of brackets (1), wherein the plurality of brackets (1) are rotatably connected to rollers via bearings, and a conveyor belt (2) is arranged on the rollers, characterized in that: A connecting rod is arranged between the left parts of several of the brackets (1), and a cleaning brush (3) is arranged on the connecting rod. A scraper (4) is arranged between the left parts of several of the brackets (1). A connecting plate (5) is arranged between several of the brackets (1), and several first support plates (6) are arranged on the left part of the connecting plate (5). Several rotating rods are rotatably connected between the several first support plates (6) via several rotating shafts, and several cutting rollers (7) are arranged on the several rotating rods.

2. The belt-type sludge low-temperature drying equipment utilizing waste heat according to claim 1 is characterized in that: The outer edges of the plurality of cutting rollers (7) are all arranged with pointed ends, and gaps are arranged between the lower parts of the plurality of cutting rollers (7) and the upper end surface of the conveyor belt (2).

3. The belt-type sludge low-temperature drying equipment utilizing waste heat according to claim 2, characterized in that: The upper end surface of the cleaning brush (3) is in contact with the lower end surface of the conveyor belt (2), and the cleaning brush (3) is made of wear-resistant material.

4. The belt-type sludge low-temperature drying equipment utilizing waste heat according to claim 1 is characterized in that: The upper end surface of the scraper (4) is in contact with the lower end surface of the conveyor belt (2), and a collection box (15) is provided on the left side of several of the brackets (1).

5. The belt-type sludge low-temperature drying equipment utilizing waste heat according to claim 1 is characterized in that: A plurality of second support plates (8) are arranged on the right part of the plurality of the brackets (1), a funnel (9) is arranged between the plurality of the second support plates (8), a plurality of third support plates (10) are arranged on the right part of the bracket (1), and the plurality of the third support plates (10) are rotatably connected to a flattening wheel (11) via a rotating shaft.

6. The belt-type low-temperature sludge drying equipment utilizing waste heat according to claim 4 is characterized in that: A fourth support plate (12) is arranged in the middle of the connecting plate (5), a drying device (13) is arranged on the fourth support plate (12), exhaust pipes (14) are arranged on both sides of the drying device (13), and nozzles are arranged on several exhaust pipes (14).

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