Environment-friendly resource type sludge drying machine

Abstract

The invention discloses an environment-friendly resource type sludge drying machine, and relates to the technical field of drying machines, the environment-friendly resource type sludge drying machine comprises a fixing frame, a drying assembly is arranged in the fixing frame, a replacement assembly used for replacing gas purification equipment is arranged at the position, close to the center, of the top of the fixing frame, and the replacement assembly comprises a driving motor; and the output end of the driving motor is fixedly connected with a rotating shaft. According to the environment-friendly resource type sludge drying machine, when sludge needs to be dried, external sludge is conveyed into the drying bin body, the sludge is heated, generated hot air is output outwards through a smoke pipe, the air is purified through activated carbon in a leak hole box, when the activated carbon needs to be replaced, a driving motor is started, and the activated carbon is replaced; according to the sludge drying machine, the problems that most sludge drying machines in the prior art are not provided with devices for automatically replacing gas purification equipment, and the labor intensity of workers is improved are solved.

Description

Technical Field

[0001] The invention relates to the technical field of drying machines, in particular to an environmentally friendly resource-based sludge drying machine. Background Art

[0002] Sludge dryer is a device used to treat sludge generated in the sewage treatment process. Its main purpose is to reduce the moisture content of the sludge, thereby reducing the volume of the sludge for subsequent disposal and utilization. The basic working principle of the sludge dryer is to evaporate the water in the sludge by heating or conducting heat, thereby achieving the purpose of drying.

[0003] In the process of treating sludge, the existing sludge dryer uses heated air to pass through the sludge bed to take away the moisture in the sludge. In the process of heating the sludge, a large amount of hot air will be released outward, and the hot air will carry the harmful gases vaporized in the sludge, such as volatile organic compounds (VOCs), ammonia, particulate matter and odor. Most of the existing sludge dryers use activated carbon purification methods to adsorb the odor generated in the sludge drying process. Since the activated carbon exists in the form of particles, when the gas passes through the activated carbon layer, the flushing and friction of the airflow will cause the activated carbon particles to collide and rub against each other, and finally cause part of the activated carbon on the surface of the particles to fall off to form dust, causing environmental pollution. Most of the existing sludge drying equipment fixes the activated carbon inside the smoke pipe and does not have the performance of automatically replacing the activated carbon. It is necessary to check the use of the activated carbon regularly to decide whether to replace the activated carbon, which increases the labor intensity of the staff.

[0004] Therefore, we proposed an environmentally friendly resource-based sludge dryer to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide an environmentally friendly resource-based sludge dryer to solve the problem that most of the sludge dryers proposed in the above background technology do not have a device for automatically replacing gas purification equipment, which increases the labor intensity of the staff.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly resource-based sludge dryer, comprising a fixed frame, a drying component is arranged inside the fixed frame, a replacement component for replacing a gas purification device is arranged near the center of the top of the fixed frame, the replacement component comprises a drive motor, the output end of the drive motor is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly sleeved with a driving gear, the outer surface of the driving gear is meshingly connected with a gear ring, the outer surface of the gear ring is fixedly sleeved with a mounting ring, the outer surface of the mounting ring is opened with a plurality of positioning grooves, a plurality of positioning grooves are provided with leakage boxes inside, and the outer surfaces of the plurality of leakage boxes are fixedly mounted with two limit blocks.

[0007] Preferably, the outer surface of the driving motor is fixedly connected to the top of the fixed frame by screws, and the outer surface of the driving gear is movably embedded in the gear ring.

[0008] Preferably, each two adjacent limit blocks form a group, and each group of limit blocks is movably embedded in a plurality of positioning grooves, a support frame is fixed to the top of the fixed frame near one side edge, and the top end of the rotating shaft movably passes through the outside of the support frame.

[0009] Preferably, the drying component includes a drying bin body for drying sludge, the bottom of the drying bin body is fixedly connected to the inner wall of the fixed frame, the outer surface of the drying bin body is provided with a heating wire for heating the sludge, and the inner bottom surface of the fixed frame is provided with a delivery pump.

[0010] Preferably, the output end of the delivery pump is fixedly connected to a delivery pipe, the top end of the delivery pipe is fixedly penetrated into the interior of the drying bin body, and the bottom of the drying bin body is fixedly connected to an output pipe near one side edge.

[0011] Preferably, a solenoid valve is provided on the outer surface of the output pipe, a collecting bin is provided on the inner bottom surface of the fixed frame, and the collecting bin is provided at the lower part of the output pipe.

[0012] Preferably, the other side outer surface of the drying bin body is fixedly connected with a smoke pipe, the top end of the smoke pipe is fixedly penetrated to the outside of the fixed frame, and the top end of the smoke pipe is fixedly connected with a mounting pipe.

[0013] Preferably, a cooling assembly for cooling the gas is arranged at the top of the fixed frame near one side edge, and the cooling assembly includes a compression rod, and the bottom end of the compression rod is fixedly connected to the top of the fixed frame.

[0014] Preferably, a cooling bin is fixedly mounted on the top of the compression rod, and an inner wall of the cooling bin is provided with a laser dust meter for detecting the amount of dust in the flue gas output by the dryer.

[0015] Preferably, a semiconductor refrigeration sheet for cooling the gas is arranged between the opposite inner walls of the cooling bin, and an air outlet pipe is fixedly connected to the outer surface of the cooling bin.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the sludge needs to be dried, the external sludge is transported to the inside of the drying bin body and heated. The generated hot gas is output to the outside through the smoke pipe, and the gas is purified by the activated carbon in the leak box. When the activated carbon needs to be replaced, the drive motor is started to drive the next leak box to rotate to a position that coincides with the top of the installation pipe. This solves the problem that most sludge dryers in the prior art do not have a device for automatically replacing gas purification equipment, which increases the labor intensity of the staff.

[0017] 2. After the gas generated in the dryer is purified, the laser dust meter is used to detect the particulate matter in the gas. When the amount of particulate matter detected in the gas is greater than the specified value, the signal can be transmitted to the external control system. The drive motor is started by the external control system to drive multiple leak boxes to rotate, realize the replacement of activated carbon, achieve environmentally friendly drying of sludge, and prevent dust in the flue gas from polluting the air.

[0018] 3. Since a large amount of heat will be generated during the drying process of the sludge through the heating wire and discharged outward with the flue gas, when the flue gas enters the cooling chamber, the semiconductor refrigeration plate is electrically connected to the external power supply to cool the flue gas. The cooled flue gas can be discharged outward through the exhaust pipe. The cooling component can prevent the high-temperature flue gas generated during the sludge heating and drying process from being discharged into the atmosphere to cause a greenhouse effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective view of an environmentally friendly resource-based sludge drying machine of the present invention; Figure 2 It is a three-dimensional diagram of the fixed frame part of an environmentally friendly resource-based sludge drying machine of the present invention; Figure 3 It is a partial three-dimensional diagram of a drying component of an environmentally friendly resource-based sludge drying machine of the present invention; Figure 4 It is a partial three-dimensional diagram of a replacement component of an environmentally friendly resource-based sludge drying machine of the present invention; Figure 5 This is a three-dimensional diagram of the driving gear part of an environmentally friendly resource-based sludge drying machine of the present invention; Figure 6 It is a three-dimensional diagram of the structure of the mounting ring of an environmentally friendly resource-based sludge dryer of the present invention; Figure 7 It is a sectional stereoscopic view of the installation ring part of an environmentally friendly resource-based sludge drying machine of the present invention; Figure 8 The present invention is a partial cross-sectional perspective view of a cooling component of an environmentally friendly resource-based sludge dryer.

[0020] In the figure: 1. Fixed frame; 2. Drying component; 201. Drying chamber body; 202. Heating wire; 203. Delivery pump; 204. Delivery pipe; 205. Output pipe; 206. Solenoid valve; 207. Collection chamber; 3. Smoke pipe; 4. Mounting pipe; 5. Replacement component; 501. Drive motor; 502. Rotating shaft; 503. Active gear; 504. Gear ring; 505. Mounting ring; 506. Positioning groove; 507. Leak box; 508. Limit block; 6. Support frame; 7. Cooling component; 701. Compression rod; 702. Cooling chamber; 703. Semiconductor refrigeration sheet; 704. Laser dust monitor; 705. Exhaust pipe. DETAILED DESCRIPTION

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

[0022] See also Figure 1-8The present invention provides a technical solution: an environmentally friendly resource-based sludge drying machine, comprising a fixed frame 1, a drying component 2 is arranged inside the fixed frame 1, a replacement component 5 for replacing a gas purification device is arranged near the center of the top of the fixed frame 1, and the replacement component 5 includes a driving motor 501, the output end of the driving motor 501 is fixedly connected to a rotating shaft 502, the outer surface of the rotating shaft 502 is fixedly sleeved with a driving gear 503, the outer surface of the driving gear 503 is meshingly connected with a gear ring 504, the outer surface of the gear ring 504 is fixedly sleeved with a mounting ring 505, the outer surface of the mounting ring 505 is provided with a plurality of positioning grooves 506, the interiors of the plurality of positioning grooves 506 are all provided with leak boxes 507, the outer surfaces of the plurality of leak boxes 507 are fixedly installed with two limit blocks 508, the outer surface of the driving motor 501 is fixedly connected to the top of the fixed frame 1 by screws, the outer surface of the driving gear 503 is movably embedded in the interior of the gear ring 504, and the plurality of limit blocks 508 are each a group of two adjacent ones, and each group of limit blocks 508 is movably embedded in the plurality of positioning grooves 506. Inside the groove 506, a support frame 6 is fixed at the top of the fixed frame 1 near one side edge, and the top of the rotating shaft 502 is movably penetrated to the outside of the support frame 6. The drying component 2 includes a drying bin body 201 for drying sludge, the bottom of the drying bin body 201 is fixedly connected to the inner wall of the fixed frame 1, and the outer surface of the drying bin body 201 is provided with a heating wire 202 for heating the sludge. A delivery pump 203 is provided on the inner bottom surface of the fixed frame 1, and the output end of the delivery pump 203 is fixedly connected with a delivery pipe 204, and the delivery The top end of the delivery pipe 204 is fixedly passed through the interior of the drying bin body 201, and the bottom of the drying bin body 201 is fixedly connected with an output pipe 205 near one side edge, and an electromagnetic valve 206 is arranged on the outer surface of the output pipe 205. A collecting bin 207 is arranged on the inner bottom surface of the fixed frame 1, and the collecting bin 207 is arranged at the lower part of the output pipe 205. The other side outer surface of the drying bin body 201 is fixedly connected with a smoke pipe 3, and the top end of the smoke pipe 3 is fixedly passed through the outside of the fixed frame 1, and the top end of the smoke pipe 3 is fixedly connected with a mounting pipe 4.

[0023] In this embodiment, when the sludge needs to be dried, the external pipe connected to the sludge is fixedly connected to the feed end of the delivery pump 203, and then the delivery pump 203 is started to transport the external sludge to the inside of the drying bin body 201 through the delivery pipe 204. At the same time, the heating wire 202 is electrically connected to the external power supply to release heat to heat the sludge inside the drying bin body 201. The heating wire 202 is an existing mature technology and will not be introduced in detail here. The flue gas generated by the sludge during the heating and drying process is output to the outside through the smoke pipe 3. In order to prevent harmful gases in the flue gas from directly entering the atmosphere and polluting the environment, the driving motor 501 is first started to drive the rotating shaft 502 to rotate, and then drive the driving gear 503 to rotate, thereby driving the gear ring 504 to rotate, wherein, as shown in FIG. Figure 7As shown, the gear ring 504 is composed of an internal gear and upper and lower baffles, and its purpose is to facilitate the connection with the active gear 503, and also to limit the active gear 503 in the vertical direction. The rotation of the gear ring 504 drives the mounting ring 505 to rotate, and then drives the multiple positioning grooves 506 to rotate, thereby driving the multiple leakage hole boxes 507 to rotate, wherein the interiors of the multiple leakage hole boxes 507 are all filled with granular activated carbon. When one of the leakage hole boxes 507 is rotated to the top of the mounting tube 4 and completely overlaps with the top of the mounting tube 4, the driving motor 501 can be turned off, wherein the rotation angle of the driving motor 501 is set in advance, and the multiple leakage hole boxes 507 are evenly distributed in the mounting ring 505. When the leakage hole box 507 overlaps with the mounting tube 4, the smoke can be purified by the activated carbon in one of the leakage hole boxes 507, and then the smoke can be purified by the activated carbon in the leakage hole box 507. 7 is discharged through the small hole on the top of the activated carbon, wherein the working principle of the activated carbon is as follows: the activated carbon has a highly developed pore structure, including micropores, mesopores and macropores, which are interconnected to form a huge internal surface area. When harmful gases and odor molecules approach the activated carbon, they will be captured by its abundant pores and adsorbed on the surface and pores of the activated carbon under the action of van der Waals force, thereby adsorbing the harmful gases on the surface of the activated carbon, and the purified gas can continue to be discharged outward. When the activated carbon needs to be replaced, the drive motor 501 is started again to drive the next leak box 507 to rotate to a position that coincides with the top of the mounting tube 4. The function of the replacement component 5 is to realize the gas purification in the dryer while realizing the automatic replacement of the gas purification equipment, thereby solving the problem that most sludge dryers in the prior art do not have a device for automatically replacing the gas purification equipment, which increases the labor intensity of the staff.

[0024] like Figure 1 and Figure 8 As shown, a cooling bin 702 is fixedly installed on the top of the compression rod 701, and a laser dust meter 704 for detecting the amount of dust in the flue gas output by the dryer is arranged on the inner wall of the cooling bin 702, and a semiconductor refrigeration plate 703 for cooling the gas is arranged between the relative inner walls of the cooling bin 702, and an air outlet pipe 705 is fixedly connected to the outer surface of the cooling bin 702.

[0025] In this embodiment, after the gas generated in the dryer is purified, it first enters the interior of the cooling chamber 702. At this time, the laser dust monitor 704 can be started to detect the particulate matter in the gas. The working principle of the laser dust monitor 704 is as follows: the laser emits a monochromatic, parallel, narrow beam laser, which forms a detection area of ​​a certain diameter after passing through a lens. When the dust-containing gas is sucked into the instrument, the dust particles therein meet the laser in the detection area. Due to the different optical properties of the dust particles and the surrounding air, the laser will be scattered, generating scattered light propagating in different directions. The photoelectric detector is usually based on the photoelectric effect. When photons are irradiated onto the photosensitive material of the detector, the energy of the photons is absorbed by the material, causing the electrons in the material to escape and form a current or voltage signal, thereby realizing the conversion of optical signals into electrical signals and detecting the dust content in the gas. When the amount of particulate matter contained in the gas is greater than the specified value, the signal can be transmitted to the external control system, and the drive motor 501 is started through the external control system to drive the multiple leak boxes 507 to rotate, thereby realizing the replacement of activated carbon. Through the setting of the laser dust meter 704, the dryer can automatically replace the activated carbon according to the dust situation in the flue gas, thereby realizing environmentally friendly drying of the sludge and preventing the dust in the flue gas from polluting the air.

[0026] like Figure 1 and Figure 8 As shown, a cooling assembly 7 for cooling the gas is arranged at the top of the fixed frame 1 near one side edge, and the cooling assembly 7 includes a pressure-resistant rod 701, the bottom end of the pressure-resistant rod 701 is fixedly connected to the top of the fixed frame 1, a cooling bin 702 is fixedly installed on the top of the pressure-resistant rod 701, a laser dust meter 704 for detecting the amount of dust in the flue gas output by the dryer is arranged on the inner wall of the cooling bin 702, a semiconductor refrigeration plate 703 for cooling the gas is arranged between the relative inner walls of the cooling bin 702, and an air outlet pipe 705 is fixedly connected to the outer surface of the cooling bin 702.

[0027] In this embodiment, a large amount of heat is generated during the drying process of the sludge by the heating wire 202 and is discharged outward with the flue gas. When the flue gas enters the cooling chamber 702, the semiconductor refrigeration sheet 703 is electrically connected to the external power supply, wherein the cold surface of the semiconductor refrigeration sheet 703 faces the interior of the cooling chamber 702, and the interior of the cooling chamber 702 is cooled by the semiconductor refrigeration sheet 703. The working principle of the semiconductor refrigeration sheet 703 is as follows: the semiconductor refrigeration sheet 703 is composed of two materials, N-type semiconductor and P-type semiconductor, which are connected by metal The two elements are connected by wires to form a thermocouple pair. When direct current passes through the thermocouple composed of N-type and P-type semiconductors, energy transfer occurs at the junction of the two semiconductors. On one side of the junction, that is, the junction from the N-type element to the P-type element, electrons transition from a low energy level to a high energy level, absorbing heat, causing the temperature of this side to decrease and become a cold end, thereby cooling the flue gas. The cooled flue gas can be discharged to the outside through the outlet pipe 705. Through the action of the cooling component 7, the high-temperature flue gas generated during the sludge heating and drying process is prevented from being discharged into the atmosphere to cause a greenhouse effect.

[0028] The use method and working principle of the device: When the sludge needs to be dried, the external pipe connected to the sludge is fixedly connected to the feed end of the delivery pump 203, and then the delivery pump 203 is started to transport the external sludge to the inside of the drying bin body 201 through the delivery pipe 204. At the same time, the heating wire 202 is electrically connected to the external power supply to release heat to heat the sludge inside the drying bin body 201. The smoke generated by the sludge during the heating and drying process is output to the outside through the smoke pipe 3. In order to prevent harmful gases in the smoke from directly entering the atmosphere and polluting the environment, the drive motor 501 is first started to drive the rotating shaft 5 02 rotates, thereby driving the active gear 503 to rotate, thereby driving the gear ring 504 to rotate, the rotation of the gear ring 504 drives the mounting ring 505 to rotate, and then drives the plurality of positioning slots 506 to rotate, thereby driving the plurality of leakage hole boxes 507 to rotate, wherein the interiors of the plurality of leakage hole boxes 507 are all filled with granular activated carbon, when one of the leakage hole boxes 507 rotates to the top of the mounting tube 4 and completely overlaps with the top of the mounting tube 4, the driving motor 501 can be turned off, wherein the rotation angle of the driving motor 501 is pre-set, and the plurality of leakage hole boxes 507 are evenly distributed in the mounting ring 505, when the leakage hole box 507 After overlapping with the installation tube 4, the flue gas can be purified by the activated carbon in one of the leak boxes 507, and then discharged through the small hole on the top of the leak box 507 to enter the interior of the cooling chamber 702, and then the laser dust monitor 704 is started to detect the particulate matter in the gas. When it is detected that the amount of particulate matter contained in the gas is greater than the specified value, the signal can be transmitted to the external control system, and the drive motor 501 can be started to drive the next leak box 507 to rotate to the position overlapping with the top of the installation tube 4. This realizes the gas purification in the dryer and the automatic replacement of the gas purification equipment. A large amount of heat will be generated during the drying process of the sludge through the heating wire 202, and the heat will be discharged outward along with the flue gas. When the flue gas enters the cooling bin 702, the semiconductor refrigeration plate 703 is electrically connected to the external power supply, wherein the cold surface of the semiconductor refrigeration plate 703 faces the interior of the cooling bin 702. The interior of the cooling bin 702 is cooled by the semiconductor refrigeration plate 703, thereby cooling the exhausted flue gas. The cooled flue gas can be discharged outward through the exhaust pipe 705. When the sludge is dried, the solenoid valve 206 is turned on, so that the dried sludge in the drying bin body 201 enters the interior of the collection bin 207 through the output pipe 205.

[0029] The wiring diagram of the drying bin body 201, heating wire 202, solenoid valve 206, drive motor 501, semiconductor cooling sheet 703 and laser dust monitor 704 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the drying bin body 201, heating wire 202, solenoid valve 206, drive motor 501, semiconductor cooling sheet 703 and laser dust monitor 704 will not be explained in detail.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly resource-based sludge drying machine, comprising a fixed frame (1), wherein a drying component (2) is arranged inside the fixed frame (1), characterized in that: A replacement component (5) for replacing the gas purification device is arranged near the center of the top of the fixed frame (1), the replacement component (5) comprising a driving motor (501), the output end of the driving motor (501) being fixedly connected to a rotating shaft (502), a driving gear (503) being fixedly sleeved on the outer surface of the rotating shaft (502), a gear ring (504) being meshingly connected on the outer surface of the driving gear (503), a mounting ring (505) being fixedly sleeved on the outer surface of the gear ring (504), a plurality of positioning grooves (506) being provided on the outer surface of the mounting ring (505), a plurality of leak boxes (507) being arranged inside the plurality of positioning grooves (506), and two limit blocks (508) being fixedly mounted on the outer surfaces of the plurality of leak boxes (507).

2. The environmentally friendly resource-based sludge drying machine according to claim 1 is characterized by: The outer surface of the driving motor (501) is fixedly connected to the top of the fixed frame (1) via screws, and the outer surface of the driving gear (503) is movably embedded in the gear ring (504).

3. The environmentally friendly resource-based sludge drying machine according to claim 2 is characterized by: The plurality of limit blocks (508) are grouped into two adjacent ones, and each group of limit blocks (508) is movably embedded in the interior of the plurality of positioning grooves (506). A support frame (6) is fixed to the top of the fixed frame (1) near one side edge, and the top end of the rotating shaft (502) movably passes through the outside of the support frame (6).

4. The environmentally friendly resource-based sludge drying machine according to claim 3 is characterized by: The drying assembly (2) comprises a drying bin body (201) for drying sludge, the bottom of the drying bin body (201) being fixedly connected to the inner wall of the fixed frame (1), a heating wire (202) for heating the sludge being arranged on the outer surface of the drying bin body (201), and a delivery pump (203) being arranged on the inner bottom surface of the fixed frame (1).

5. The environmentally friendly resource-based sludge drying machine according to claim 4 is characterized by: The output end of the delivery pump (203) is fixedly connected to a delivery pipe (204), the top end of the delivery pipe (204) is fixedly passed through the interior of the desiccant bin body (201), and the bottom of the desiccant bin body (201) near one side edge is fixedly connected to an output pipe (205).

6. The environmentally friendly resource-based sludge drying machine according to claim 5 is characterized by: An electromagnetic valve (206) is provided on the outer surface of the output pipe (205), and a collecting bin (207) is provided on the inner bottom surface of the fixed frame (1); the collecting bin (207) is provided at the lower part of the output pipe (205).

7. The environmentally friendly resource-based sludge drying machine according to claim 6 is characterized by: The other side outer surface of the drying bin body (201) is fixedly connected to a smoke pipe (3), the top end of the smoke pipe (3) is fixedly penetrated to the outside of the fixed frame (1), and the top end of the smoke pipe (3) is fixedly connected to a mounting pipe (4).

8. The environmentally friendly resource-based sludge drying machine according to claim 7 is characterized by: A cooling assembly (7) for cooling gas is arranged at the top of the fixed frame (1) near one side edge, and the cooling assembly (7) comprises a compression rod (701), the bottom end of the compression rod (701) being fixedly connected to the top of the fixed frame (1).

9. The environmentally friendly resource-based sludge drying machine according to claim 8 is characterized by: A cooling bin (702) is fixedly mounted on the top end of the compression rod (701), and a laser dust meter (704) for detecting the amount of dust in the flue gas output by the dryer is arranged on the inner wall of the cooling bin (702).

10. The environmentally friendly resource-based sludge drying machine according to claim 9, characterized in that: A semiconductor refrigeration sheet (703) for cooling gas is arranged between the opposite inner walls of the cooling bin (702), and an air outlet pipe (705) is fixedly connected to the outer surface of the cooling bin (702).

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