CN115536237A - A Belt Sludge Dryer Using Solar Auxiliary Heating - Google Patents

Abstract

The invention relates to the technical field of sludge drying machines, and discloses a belt-type sludge drying machine utilizing solar energy for auxiliary heating, which comprises a shell, wherein a solar heat collector is fixedly connected to the top end of the shell, a sludge feeding hole is fixedly connected to the left side of the shell, a motor is fixedly connected to the front side wall of the shell, an output shaft is fixedly connected to the rear side of the motor and extends into the shell, and a first rotating wheel is fixedly connected to the rear side of the output shaft. According to the sludge drying device, the heat energy collected by the solar heat collector acts on the inside of the drying machine to continuously heat the sludge in the drying machine, so that the effect of collecting the heat energy by using solar energy and further assisting in drying the sludge is achieved, energy is saved, the environment is protected, meanwhile, the sludge attached to the bottom wall of the drying belt is timely scraped by the scraper, the first rotating shaft and the second rotating shaft which are matched, the sludge conveyed and dried by the drying belt is conveyed, the conveying efficiency of the drying belt is obviously improved, and the problem that the sludge conveying of the drying belt is influenced due to soil accumulation is solved.

Description

A Belt Sludge Dryer Using Solar Auxiliary Heating

technical field

The invention relates to the technical field of sludge dryers, in particular to a belt-type sludge dryer utilizing solar energy for auxiliary heating.

Background technique

With the development of industry, industrial sewage continues to increase, and the sludge produced after sewage treatment also increases. In industry, it is often necessary to dry the sludge, and use heat to quickly remove the water in the sludge, so that after drying The solid content of the sludge is increased, which is convenient for recycling.

The existing belt sludge dryer has the following technical defects in use: First, it needs to use external heating energy for a long time to evaporate the moisture in the sludge during the sludge drying process, resulting in high energy consumption and excessive maintenance costs. High, which is not conducive to the scientific and environmental protection concept of sustainable development; second, the sludge dried by the belt dryer in the process of heating and drying will reduce its viscosity with the reduction of water, making the solid sludge It is difficult to remove the attached drying belt, which leads to the obstruction of the sludge movement during the rotation of the drying belt and affects the sludge transportation, which needs to be solved.

Contents of the invention

In view of the deficiencies in the use of the existing belt sludge dryer proposed in the background technology, the present invention provides a belt sludge dryer using solar energy auxiliary heating, which is energy-saving and environmentally friendly, and can remove drying sludge in a timely manner. With the advantage of attaching soil, it solves the technical problems raised in the above-mentioned background technology.

The present invention provides the following technical solutions: a belt sludge dryer utilizing solar energy auxiliary heating, comprising a casing, the top of the casing is fixedly connected with a solar heat collector, and the left side of the casing is fixedly connected with a A sludge feed port, a motor is fixedly connected to the front side wall of the housing, and an output shaft is fixedly connected to the rear side of the motor and extends to the inside of the housing;

The rear side of the output shaft is fixedly connected with a first rotating wheel, the outer side of the first rotating wheel is sleeved with a drying belt, and the left side of the drying belt is sleeved with a second rotating wheel, and the sludge The other end of the feed inlet extends to the inside of the housing and is fixedly connected with a flow guide. The top of the drying belt and the inner wall of the housing are fixedly connected with a material guide plate, and the right side of the material guide plate is fixedly connected to the housing. The inside of the body is provided with a squeeze roller, the right side of the squeeze roller is provided with a discharge plate, the other end of the discharge plate extends to the outside of the shell, and the bottom of the drying belt is fixedly connected with a limit A scraping mechanism is provided inside the limiting sleeve, and a collection box is fixedly connected to the bottom of the limiting sleeve.

Preferably, the scraping mechanism includes a limiting groove set on the inside of the limiting sleeve, the inside of the limiting groove is fixedly connected with a first rotating shaft, and the outer side of the first rotating shaft is connected to a scraper in rotation, and the scraper There is a second rotating shaft fixedly connected to the back side;

The scraping mechanism also includes a chute provided on the rear inner wall of the casing, the right side wall of the chute is fixedly connected with an electromagnet, the left side wall of the electromagnet is fixedly connected with a first spring, and the first spring is fixedly connected with the left side wall of the electromagnet. The left side wall of a spring is fixedly connected to the second rotating shaft, the left side of the second rotating shaft is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with a piezoelectric block, and the piezoelectric block The other end is fixedly connected on the left side wall of the chute.

Preferably, the material guide plate is arranged obliquely along the upper end of the drying belt, and the right side wall of the material guide plate extends to the left side of the squeeze roller, and the two are closely connected.

Preferably, the right side wall of the diverter is provided with an opening, and the width of the opening is the same as that of the drying belt.

Preferably, the top wall of the scraper is set in a prismatic shape, and there is a gap between the top wall of the scraper and the bottom wall of the drying belt.

Preferably, the second rotating shaft is made of a magnetic material whose magnetism is different from that of the electromagnet.

Preferably, the rotating shafts are arranged at equal intervals along the interior of the limiting groove, and the number of rotating shafts is four.

Preferably, the left side wall of the casing is fixedly connected with an air inlet, and the right side wall of the casing is fixedly connected with an exhaust hole.

Preferably, an observation port is opened on the bottom side of the front side wall of the housing.

The present invention has the following beneficial effects:

1. In the present invention, the heat energy collected by the solar heat collector acts on the inside of the drying machine so that the sludge inside the drying machine is continuously heated, and at the same time, it is passed between the motor, the first rotating wheel, the second rotating wheel, and the drying belt. Cooperate with the setting to realize the continuous drying of the sludge to be dried, and achieve the effect of using solar energy to collect heat energy and then assist in drying the sludge. It is energy-saving and environmentally friendly, and reduces the energy loss caused by continuous heating and drying of external energy.

2. The present invention realizes the transportation of sludge through the drying belt, and at the same time, the dried sludge is transported through the drying belt, and the soil attached to the bottom wall of the drying belt is in contact with the scraper to realize timely scraping of the attached soil, and at the same time Through the coordinated arrangement of multiple scrapers, the first rotating shaft and the second rotating shaft, the sludge that has been dried and attached to the bottom wall of the drying belt can be scraped off in time, which significantly improves the conveying of the drying belt. Efficiency, reducing the problem of sludge accumulation and affecting the drying belt to transport sludge.

3. The present invention realizes the extrusion and discharge of sludge through the matching arrangement of the squeeze roller and the feed plate, so that the sludge is continuously dried along the drying belt, and through the pressure of the squeeze roll and the limit function of the feed plate Furthermore, the sludge is extruded and discharged through the discharge plate, which significantly improves the drying efficiency, has a high degree of automation, and can realize continuous conveying and drying of the sludge.

4. The present invention realizes the timely scraping of the soil through the squeeze contact between the solid soil attached to the bottom wall of the drying belt and the scraper and drops it into the collection box. The cooperative arrangement among the piezoelectric block, spring and electromagnet realizes automatic scraping according to the thickness of the attached soil on different paths of the drying belt, further improving the impurity removal effect.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the present invention.

Fig. 3 is a schematic diagram of an internal cross-sectional side view of the present invention.

Fig. 4 is a three-dimensional schematic view of the scraping structure of the present invention.

Fig. 5 is a schematic diagram of the internal structure of the chute of the present invention.

In the figure: 1. Shell; 2. Solar heat collector; 3. Sludge feed port; 4. Air intake hole; 5. Vent hole; 6. Observation port; 7. Motor; 8. Drainage device; 81 , opening; 9, output shaft; 10, first rotating wheel; 11, drying belt; 12, second rotating wheel; 13, limit sleeve; 131, limit groove; 14, discharge plate; 15, extrusion Roller; 16, feed plate; 17, scraper; 171, first shaft; 172, second shaft; 18, collection box; 19, chute; 191, electromagnet; 192, second spring; 193, piezoelectric block ; 194, the second spring.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-5, a belt sludge dryer utilizing solar energy auxiliary heating, including a housing 1, a solar collector 2 is fixedly connected to the top of the housing 1, and a solar collector 2 is fixedly connected to the left side of the housing 1 The sludge feed port 3 is fixedly connected to the motor 7 on the front side wall of the housing 1, and the output shaft 9 is fixedly connected to the rear side of the motor 7 and extends to the inside of the housing 1; at the beginning, the motor 7 is first turned on to drive the first rotation The wheel 10 rotates and then drives the drying belt 11 to rotate synchronously with the second rotating wheel 12, and then the sludge to be dried is transported from the sludge feed port 3, and the sludge collected by the solar collector 2 is The thermal energy realizes the continuous heating of the sludge inside the housing 1, and the heat energy collected by the solar collector 2 acts on the inside of the dryer so that the sludge inside the dryer is continuously heated, and at the same time, the sludge is continuously heated by the motor 7 and the first rotating wheel 10 , the second rotating wheel 12, and the drying belt 11 are coordinated to realize the continuous drying of the sludge to be dried, and achieve the effect of using solar energy to collect heat energy and then assist in drying the sludge, which is energy-saving and environmentally friendly, and reduces the continuous heating of external energy The problem of energy loss caused by drying.

The rear side of the output shaft 9 is fixedly connected with a first rotating wheel 10, the outer side of the first rotating wheel 10 is sleeved with a drying belt 11, and the left side of the drying belt 11 is sleeved with a second rotating wheel 12, and the sludge feeding The other end of the port 3 extends to the inside of the housing 1 and is fixedly connected with a flow guide 8. The top of the drying belt 11 and the inner wall of the housing 1 are fixedly connected with a material guide plate 16, and the right side of the material guide plate 16 is fixedly connected to the The inside of the casing 1 is provided with a squeeze roller 15, the right side of the squeeze roller 15 is provided with a discharge plate 14, the other end of the discharge plate 14 extends to the outside of the casing 1, and the bottom of the drying belt 11 is fixedly connected The limit sleeve 13 is provided with a scraping mechanism inside the limit sleeve 13. When the sludge enters the drying belt 11 through the diverter 8, the sludge is moved along the first rotating wheel 10 through the limit of the top guide plate 16. Convey on the right side, and at the same time realize the drying plasticity of the sludge through the extrusion plasticity of the extrusion roller 15, and finally convey the material out through the discharge plate 14 on the right side. A collecting box 18 is fixedly connected to the bottom of the limiting sleeve 13 .

The scraping mechanism includes a limit groove 131 provided on the inside of the limit sleeve 13. The inside of the limit groove 131 is fixedly connected with a first rotating shaft 171, and the outside of the first rotating shaft 171 is connected to the scraper 17 in rotation, and the back side of the scraper 17 is fixed. connected with the second rotating shaft 172;

The scraping mechanism also includes a chute 19 provided on the rear inner wall of the housing 1, the right side wall of the chute 19 is fixedly connected with an electromagnet 191, the left side wall of the electromagnet 191 is fixedly connected with a first spring 192, and the first spring The left side wall of 192 is fixedly connected on the second rotating shaft 172, and the left side of the second rotating shaft 172 is fixedly connected with the second spring 194, and the other end of the second spring 194 is fixedly connected with the piezoelectric block 193, and the other end of the piezoelectric block 193 One end is fixedly connected on the left side wall of chute 19. With the drying of the sludge at the upper end of the drying belt 11 completed, there are residual solid sludge attached to the bottom wall of the drying belt 11, and during the rotation process of the drying belt 11, the drying belt 11 located at the bottom wall is Moving from right to left, it is in contact with the scraper 17 arranged on the bottom wall, and the attached soil is scraped off through the top wall of the scraper 17, and the scraper 17 on the far right and the bottom wall of the drying belt 11 During the sludge contact process, the scraper 17 rotates counterclockwise along the first rotating shaft 171 due to the extrusion force of the sludge, and at the same time, the second rotating shaft 172 rotates counterclockwise synchronously, thereby causing the second spring on the left side to rotate counterclockwise. 194 stretches, and now the pressure that piezoelectric block 193 is subjected to reduces, and when the thickness value of the soil of the bottom wall of drying belt 11 is larger, the pressure that scraper 17 is subjected to becomes larger, corresponding to the second spring 194 stretching degree is larger Large, record the piezoelectric current at this time, and the piezoelectric current at this time represents the thickness value of the soil on the bottom wall of the drying zone 11. The solid soil attached to the bottom wall of the drying belt 11 is squeezed and contacted with the scraper 17 to realize the timely scraping of the soil and drop it into the collection box 18. Cooperating arrangement between electric block 193, spring 192, electromagnet 191 realizes automatic scraping according to the thickness of the attached soil on the different paths of drying belt 11, further improves the impurity removal effect.

The material guide plate 16 is arranged obliquely along the upper end of the drying belt 11, and the right side wall of the material guide plate 16 extends to the left side of the extrusion roller 15, and the two are closely connected. The oblique material introduction of the material introduction plate 16 and the extrusion of the squeeze roller 15 realize the drying plasticity of the sludge.

The right side wall of the deflector 8 is provided with an opening 81 , and the width of the opening 81 is the same as that of the drying belt 11 . The sludge is introduced into the drying belt 11 through the sludge diverter 8 through the transverse opening, and then the conveying and drying are started.

The top wall of the scraper 17 is arranged in a prismatic shape, and the tip of the prismatic scraper 17 realizes timely scraping of the attached solid sludge. There is a gap between the top wall of the scraper 17 and the bottom wall of the drying belt 11 , and solid sludge of different thicknesses can be scraped off through the gap between the scraper 17 and the drying belt 11 .

The second rotating shaft 172 is made of magnetic material, its magnetism is different from that of the electromagnet 191 , and the scraper 17 is driven to rotate through the magnetic attraction between the electromagnet 191 and the second rotating shaft 172 .

The first rotating shaft 171 is arranged at equal intervals along the interior of the limiting groove 131, and the number of the first rotating shaft 171 is 4. The four scraping mechanisms realize the layer-by-layer scraping of sludge of different thicknesses, ensuring the thorough removal of solid sludge scrape off.

The left side wall of the casing 1 is fixedly connected with an air inlet 4 , and the right side wall of the casing 1 is fixedly connected with an exhaust hole 5 . The hot steam inside the dryer is released in time to realize heat exchange between inside and outside.

A viewing port 6 is opened on the bottom side of the front side wall of the housing 1 . It is convenient to check the amount of solids scraped off inside the collection box 18, and take them out in time to reduce accumulation.

The using method (working principle) of the present invention is as follows:

At the beginning, first turn on the motor 7 to drive the first rotating wheel 10 to rotate, and then drive the drying belt 11 to rotate synchronously with the second rotating wheel 12, and then open the sludge feeding port 3 to transport the sludge to be dried. , the heat energy collected by the solar collector 2 realizes the continuous heating of the sludge inside the housing 1, and the hot steam generated during the drying process is transported to the inside of the device through the right exhaust hole 5, thereby increasing the sludge drying efficiency.

When the sludge enters the drying belt 11 through the diverter 8, the sludge is conveyed along the right side of the first rotating wheel 10 through the limit of the top guide plate 16, and the extrusion plasticity of the extrusion roller 15 is used to realize the sludge removal. The drying plasticity of the mud is finally conveyed and discharged through the discharge plate 14 on the right. With the completion of the drying of the sludge at the upper end of the drying belt 11, there is residual solid sludge attached to the bottom wall of the drying belt 11. During the rotation process of the drying belt 11, the drying belt 11 located on the bottom wall moves from right to left, and is in contact with the scraper 17 arranged on the bottom wall, and the attached soil is realized by the top wall of the scraper 17. Scraping, during the contact process between the rightmost scraper 17 and the sludge on the bottom wall of the drying belt 11, the scraper 17 is rotated counterclockwise along the first rotating shaft 171 due to the extrusion force of the sludge, and therewith At the same time, the second rotating shaft 172 rotates counterclockwise synchronously, and then the second spring 194 on the left side is stretched. At this time, the pressure on the piezoelectric block 193 decreases. When the thickness of the soil on the bottom wall of the drying belt 11 is large , the pressure on the scraper 17 becomes larger, corresponding to the greater stretching degree of the second spring 194, record the piezoelectric current at this time, and the piezoelectric current at this time represents the thickness of the soil on the bottom wall of the drying belt 11.

Therefore, according to the rotation range of the leftmost scraper 17, the timely monitoring of the thickness of the attached soil is realized, and then the current of the electromagnet 191 of the scraping mechanism on the left is controlled, and then the first spring 192 is pulled under the action of the magnetic force. Make the second rotating shaft 172 move toward the right side, so that the scraper 17 of the scraping mechanism on the right side rotates counterclockwise, so that the distance between the scraper 17 on the left side and the drying belt 11 becomes smaller, ensuring that the scraper after scraping The soil attached to the drying belt 11 can be scraped off again. When the drying belt 11 is running again, the above principle is repeated through the next scraping mechanism to realize the layer-by-layer scraping of the attached soil, so as to achieve the complete scraping of the attached soil Effect.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides an utilize belt sludge drying machine of solar energy boosting, includes casing (1), its characterized in that: the solar energy heat collector is fixedly connected to the top end of the shell (1), the sludge feeding hole (3) is fixedly connected to the left side of the shell (1), the motor (7) is fixedly connected to the front side wall of the shell (1), and the output shaft (9) is fixedly connected to the rear side of the motor (7) and extends into the shell (1);

the utility model discloses a sludge drying device, including output shaft (9), the first rotation wheel of rear side fixedly connected with (10) of output shaft (9), the mummification area (11) has been cup jointed in the outside of first rotation wheel (10), the second rotation wheel (12) has been cup jointed in the left side of mummification area (11), the other end of mud feed inlet (3) just extends to inside fixedly connected with flow diverter (8) of casing (1), the top of mummification area (11) just is located inner wall fixedly connected with guide plate (16) of casing (1), the right side and the fixed connection of guide plate (16) are equipped with squeeze roll (15) on the inside of casing (1), the right side of squeeze roll (15) is equipped with out flitch (14), the other end that goes out flitch (14) extends to the outside of casing (1), the bottom fixedly connected with stop collar (13) of mummification area (11), the inside of stop collar (13) is equipped with strikes off the mechanism, the bottom fixedly connected with collecting box (18) of stop collar (13).

2. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 1, characterized in that: the scraping mechanism comprises a limiting groove (131) formed in the inner side of a limiting sleeve (13), a first rotating shaft (171) is fixedly connected to the inner portion of the limiting groove (131), a scraping plate (17) is rotatably connected to the outer side of the first rotating shaft (171), and a second rotating shaft (172) is fixedly connected to the back side of the scraping plate (17);

strike off mechanism still including seting up spout (19) at casing (1) rear side inner wall, the right side wall fixedly connected with electro-magnet (191) of spout (19), the first spring (192) of left side wall fixedly connected with of electro-magnet (191), the left side wall fixed connection of first spring (192) is in second pivot (172), the left side fixedly connected with second spring (194) of second pivot (172), the other end fixedly connected with piezoelectric block (193) of second spring (194), the other end fixed connection of piezoelectric block (193) is on the left side wall of spout (19).

3. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 1, characterized in that: the guide plate (16) is obliquely arranged along the upper end of the drying belt (11), and the right side wall of the guide plate (16) extends to the left side of the extrusion roller (15) and is tightly connected with the extrusion roller.

4. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 1, characterized in that: the right side wall of drainage ware (8) is equipped with opening (81), the width value of opening (81) is the same with the width value of mummification area (11).

5. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 2, characterized in that: the top wall of the scraper (17) is prismatic, and a gap is reserved between the top wall of the scraper (17) and the bottom wall of the drying belt (11).

6. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 2, characterized in that: the second rotating shaft (172) is made of a magnetic material, and the magnetism of the second rotating shaft is different from that of the electromagnet (191).

7. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 2, characterized in that: the first rotating shafts (171) are arranged at equal intervals along the inner portion of the limiting groove (131), and the number of the first rotating shafts (171) is 4.

8. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 1, characterized in that: the air inlet structure is characterized in that the left side wall of the shell (1) is fixedly connected with an air inlet hole (4), and the right side wall of the shell (1) is fixedly connected with an air outlet hole (5).

9. The belt type sludge drying machine using solar energy for auxiliary heating according to claim 1, characterized in that: an observation port (6) is formed in the bottom side of the front side wall of the shell (1).

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