CN212640266U - Closed paddle stirring sludge drying system - Google Patents
Closed paddle stirring sludge drying system Download PDFInfo
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- CN212640266U CN212640266U CN202021940859.8U CN202021940859U CN212640266U CN 212640266 U CN212640266 U CN 212640266U CN 202021940859 U CN202021940859 U CN 202021940859U CN 212640266 U CN212640266 U CN 212640266U
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Abstract
The utility model relates to a closed paddle stirring sludge drying system, it includes paddle stirring formula sludge drying machine, paddle stirring formula sludge drying machine's mud inlet links to each other with the sludge transfer pump, paddle stirring formula sludge drying machine's carrier gas export links to each other with the scrubbing tower, the gas outlet of scrubbing tower loops through draught fan and heater and paddle stirring formula sludge drying machine's retrieval and utilization mouth and links to each other, paddle stirring formula sludge drying machine's sludge discharge gate links to each other with dry sludge conveying equipment. The utility model discloses compact structure, the space occupancy is low, and unit volume heat transfer area is big, and drying rate is fast, and the material obtains even stirring, and heat utilization is high.
Description
Technical Field
The utility model relates to a drying system, concretely relates to closed stirring sludge drying system.
Background
In recent years, with the increasing urbanization of China, environmental protection treatment facilities are improved day by day, and a large amount of sludge is generated in the process of resident life and factory production. In particular to municipal sewage sludge, drainage sludge of petroleum refineries, chemical plants, food plants and paper mills, drainage sludge of other industries, feces and urine sludge, food wastes and the like, and has higher treatment cost and general treatment effect.
Disclosure of Invention
The purpose of the invention is as follows: the utility model aims at overcoming the not enough among the prior art, provide a compact structure, the space occupancy is low, and unit volume heat transfer area is big, and drying rate is fast, and the material obtains even stirring, the high closed paddle stirring sludge drying system of heat utilization rate.
The technical scheme is as follows: in order to solve the technical problem, the closed paddle stirring sludge drying system of the utility model comprises a paddle stirring sludge drying machine, wherein a sludge inlet of the paddle stirring sludge drying machine is connected with a sludge delivery pump, a carrier gas outlet of the paddle stirring sludge drying machine is connected with a washing tower, a gas outlet of the washing tower is connected with a recycling port of the paddle stirring sludge drying machine sequentially through a draught fan and a heater, a sludge discharge port of the paddle stirring sludge drying machine is connected with dry sludge delivery equipment, the paddle stirring sludge drying machine comprises a barrel, a steam jacket is arranged in the barrel, 2N (N is more than or equal to 1) horizontal hollow paddle shafts are arranged in the steam jacket, two adjacent horizontal hollow paddle shafts rotate relatively, a plurality of hollow wedge-shaped paddles are arranged on the hollow paddle shafts, the horizontal hollow paddle shafts are communicated with hollow channels of the hollow wedge-shaped paddles, one end of the horizontal hollow blade shaft is connected with a driving device, a tube-side steam inlet is formed in the end portion of the other end of the horizontal hollow blade shaft, a tube-side steam outlet is formed in the horizontal hollow blade shaft beside the tube-side steam inlet, the carrier gas outlet is formed in one end of the cylinder, a carrier gas inlet is formed in the other end of the cylinder, a preheater is arranged on the carrier gas inlet, a shell-side steam inlet is formed in the upper portion of one side of the steam jacket, and a shell-side steam outlet is formed in the lower portion of the other side of the steam jacket.
Furthermore, two or four horizontal hollow blade shafts are arranged in the cylinder body, and the central lines of the two or four horizontal hollow blade shafts are arranged on the same horizontal plane.
Further, a gap is reserved between the hollow wedge-shaped blade and the inner wall of the steam jacket.
Further, the horizontal hollow blade shaft rotates at a constant speed.
Furthermore, the hollow wedge-shaped blades on the adjacent horizontal hollow blade shafts are arranged in a staggered mode.
Furthermore, the bottom of the cylinder body is provided with support legs, and the support legs are arranged on the base.
Furthermore, each horizontal hollow blade shaft is connected with a driving device.
Furthermore, the sludge inlet is formed in the upper portion of one side of the cylinder, the sludge discharge port is formed in the lower portion of the other side of the cylinder, and sludge moves from the direction of the sludge inlet to the direction of the sludge discharge port by rotating the hollow wedge-shaped blades.
In the utility model, the cross section of the hollow wedge-shaped paddle is trapezoidal; the hollow wedge-shaped blades on the adjacent horizontal hollow blade shafts are arranged in a staggered manner, namely the hollow wedge-shaped blade on one horizontal hollow blade shaft is arranged between the hollow wedge-shaped blades on the next horizontal hollow blade shaft.
The process of the utility model is explained as follows:
1. after dehydration, the sludge with the water content of 80 percent is sent into a paddle stirring sludge drying system through a sludge pump;
2. the sludge entering the dryer is stirred and vibrated violently under the action of the paddle and the heating interface is heated, and the contained water is evaporated rapidly;
3. under the action of a draught fan, air serving as carrier gas quickly flows through the dryer to carry out moisture, so that the evaporation rate and diffusion speed of sludge moisture are ensured;
4. the carrier gas is discharged from the dryer and then treated by a washing tower to remove a large amount of water vapor and a small amount of dust contained in the carrier gas;
5. the carrier gas after dust removal and spraying treatment can be heated again and then introduced into the dryer for recycling, so that the heat utilization rate of the drying system is further improved. If the gas generated by sludge treatment has toxicity, the gas can be connected into a waste gas treatment system, and the emission of harmful gas is reduced, so that the environmental protection capability is effectively improved.
Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: the utility model relates to a horizontal stirring type continuous drying system mainly based on heat conduction, mainly comprising a hollow blade shaft, a cylinder body with a jacket, a driving device and a heat source, wherein a paddle stirring type sludge drying machine comprises the cylinder body, the horizontal hollow blade shaft and a hollow wedge-shaped blade which can transfer heat and have large heat transfer density, the horizontal hollow blade shaft is generally arranged in pairs, two or four stirring blades are hollow wedge-shaped blades, and the clearance between the horizontal hollow blade shaft and the inner wall of the cylinder body is smaller, so that the stirring intensity can be increased and the heat transfer dead angle in the cylinder body can be eliminated, in the relative rotation process of two adjacent shafts, the hollow wedge-shaped blade is lifted upwards to drive the material at the bottom of the cylinder body to overturn, the material is overturned ceaselessly and is contacted with the heat source, thereby the drying structure is dried, the drying time is shortened relative to other driers which conduct heating, the drying speed is increased, the whole structure is compact, the space occupancy is low, the shaft and the paddle can both transfer heat, the heat transfer area of the unit volume of the dryer is large, the drying speed is high, the shaft rotates at a constant speed, the materials are uniformly stirred, the drying force is uniform, the product granularity is uniform, all heat transfer surfaces of the paddle are covered by the materials (sludge), the heat utilization rate is high, the heat loss is low, the drying effect of the sludge can be adjusted to obtain different final water contents by adjusting the rotating speed, the flow (intermittent or continuous) and the drying time, the wedge-shaped paddle has self-cleaning capability, the heat efficiency is high, the motion regularity of dried particles is strong, the abrasion to devices is small, the wedge-shaped paddle is suitable for drying the sludge, hot air is introduced into the dryer, the advantages of the hot air type dryer and the paddle type dryer are combined, the processing capability of the unit area of the dryer is enhanced, and the carrier gas discharged, the heat energy utilization rate is improved, the energy consumption is reduced, the whole treatment process is a closed system, no gas is leaked, the emission of harmful gas can be effectively reduced, and the environment is protected.
Drawings
FIG. 1 is a block diagram of the structure of the present invention;
fig. 2 is a schematic structural diagram of the middle paddle stirring type sludge dryer of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the closed paddle stirring sludge drying system of the present invention comprises a paddle stirring sludge drying machine 1, wherein a sludge inlet 2 of the paddle stirring sludge drying machine 1 is connected with a sludge delivery pump 3, a carrier gas outlet 4 of the paddle stirring sludge drying machine 1 is connected with a washing tower 5, a gas outlet of the washing tower 5 is connected with a recycling outlet 8 of the paddle stirring sludge drying machine 1 sequentially through a draught fan 6 and a heater 7, a sludge discharge outlet 9 of the paddle stirring sludge drying machine 1 is connected with a dry sludge delivery device 10, the paddle stirring sludge drying machine 1 comprises a cylinder 11, a steam jacket 12 is arranged in the cylinder 11, two or four horizontal hollow paddle shafts 13 are arranged in the steam jacket 12, their central lines are arranged on the same horizontal plane, and two adjacent horizontal hollow paddle shafts 13 rotate relatively, the horizontal hollow blade shaft 13 rotates at a constant speed, a plurality of hollow wedge-shaped blades 14 are arranged on the horizontal hollow blade shaft 13, the hollow wedge-shaped blades 14 on adjacent horizontal hollow blade shafts 13 are arranged in a staggered mode, a gap is reserved between each hollow wedge-shaped blade 14 and the inner wall of the steam jacket 12, hollow channels of the horizontal hollow blade shaft 13 and the hollow wedge-shaped blades 14 are communicated with each other, the sludge inlet 2 is arranged at the upper part of one side of the cylinder 11, the sludge discharge port 9 is arranged at the lower part of the other side of the cylinder 11, sludge moves from the direction of the sludge inlet 2 to the direction of the sludge discharge port 9 through the rotation of the hollow wedge-shaped blades 14, one end of each horizontal hollow blade shaft 13 is connected with a driving device 15, each horizontal hollow blade shaft 13 is connected with one driving device 15, a tube-side steam inlet 16 is arranged at the end part of the other end part of each horizontal hollow blade shaft 13, a tube-side steam outlet 17 is arranged on the horizontal hollow blade, the carrier gas outlet 4 is arranged at one end of the cylinder 11, the other end of the cylinder 11 is provided with a carrier gas inlet 18, the carrier gas inlet 18 is provided with a preheater 19, the upper part of one side of the steam jacket 12 is provided with a shell-side steam inlet 20, the lower part of the other side of the steam jacket 12 is provided with a shell-side steam outlet 21, the bottom of the cylinder 11 is provided with a support leg 22, and the support leg 22 is arranged on a base 23. The utility model relates to a horizontal stirring type continuous drying system mainly based on heat conduction, mainly comprising a hollow blade shaft, a cylinder body with a jacket, a driving device and a heat source, wherein a paddle stirring type sludge drying machine comprises the cylinder body, the horizontal hollow blade shaft and a hollow wedge-shaped blade which can transfer heat and have large heat transfer density, the horizontal hollow blade shaft is generally arranged in pairs, two or four stirring blades are hollow wedge-shaped blades, and the clearance between the horizontal hollow blade shaft and the inner wall of the cylinder body is smaller, so that the stirring intensity can be increased and the heat transfer dead angle in the cylinder body can be eliminated, in the relative rotation process of two adjacent shafts, the hollow wedge-shaped blade is lifted upwards to drive the material at the bottom of the cylinder body to overturn, the material is overturned ceaselessly and is contacted with the heat source, thereby the drying structure is dried, the drying time is shortened relative to other driers which conduct heating, the drying speed is increased, the whole structure is compact, the space occupancy is low, the shaft and the paddle can both transfer heat, the heat transfer area of the unit volume of the dryer is large, the drying speed is high, the shaft rotates at a constant speed, the materials are uniformly stirred, the drying force is uniform, the product granularity is uniform, all heat transfer surfaces of the paddle are covered by the materials (sludge), the heat utilization rate is high, the heat loss is low, the drying effect of the sludge can be adjusted to obtain different final water contents by adjusting the rotating speed, the flow (intermittent or continuous) and the drying time, the wedge-shaped paddle has self-cleaning capability, the heat efficiency is high, the motion regularity of dried particles is strong, the abrasion to devices is small, the wedge-shaped paddle is suitable for drying the sludge, hot air is introduced into the dryer, the advantages of the hot air type dryer and the paddle type dryer are combined, the processing capability of the unit area of the dryer is enhanced, and the carrier gas discharged, the heat energy utilization rate is improved, the energy consumption is reduced, the whole treatment process is a closed system, no gas is leaked, the emission of harmful gas can be effectively reduced, and the environment is protected.
The utility model discloses as follows with open paddle dryer's desiccator performance contrast:
the utility model provides a thinking and method, the method and the way of specifically realizing this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as the utility model discloses a protection range, each component that does not make clear and definite in this embodiment all can be realized with prior art.
Claims (8)
1. Closed paddle stirring sludge drying system, its characterized in that: the sludge drying device comprises a paddle stirring type sludge drying machine (1), wherein a sludge inlet (2) of the paddle stirring type sludge drying machine (1) is connected with a sludge delivery pump (3), a carrier gas outlet (4) of the paddle stirring type sludge drying machine (1) is connected with a washing tower (5), a gas outlet of the washing tower (5) is connected with a recycling port (8) of the paddle stirring type sludge drying machine (1) sequentially through a draught fan (6) and a heater (7), a sludge discharge port (9) of the paddle stirring type sludge drying machine (1) is connected with dry sludge delivery equipment (10), the paddle stirring type sludge drying machine (1) comprises a cylinder body (11), a steam jacket (12) is arranged in the cylinder body (11), 2N horizontal hollow paddle shafts (13) are arranged in the steam jacket (12), N is not less than 1, and two adjacent horizontal hollow paddle shafts (13) rotate relatively, a plurality of hollow wedge-shaped blades (14) are arranged on the horizontal hollow blade shaft (13), the horizontal hollow blade shaft (13) is communicated with the hollow channel of the hollow wedge-shaped blade (14), one end of the horizontal hollow blade shaft (13) is connected with a driving device (15), a tube pass steam inlet (16) is arranged at the other end part of the horizontal hollow blade shaft (13), a tube pass steam outlet (17) is arranged on the horizontal hollow blade shaft (13) beside the tube pass steam inlet (16), the carrier gas outlet (4) is arranged at one end of the cylinder body (11), a carrier gas inlet (18) is arranged at the other end of the cylinder body (11), a preheater (19) is arranged on the carrier gas inlet (18), a shell side steam inlet (20) is arranged at the upper part of one side of the steam jacket (12), and a shell-side steam outlet (21) is arranged at the lower part of the other side of the steam jacket (12).
2. The closed blade stirring sludge drying system of claim 1, wherein: two or four horizontal hollow blade shafts (13) are arranged in the cylinder body (11), and the central lines of the two or four horizontal hollow blade shafts are arranged on the same horizontal plane.
3. The closed blade stirring sludge drying system of claim 1, wherein: a gap is reserved between the hollow wedge-shaped blade (14) and the inner wall of the steam jacket (12).
4. The closed blade stirring sludge drying system of claim 1, wherein: the horizontal hollow blade shaft (13) rotates at a constant speed.
5. The closed blade stirring sludge drying system of claim 1, wherein: the hollow wedge-shaped blades (14) on the adjacent horizontal hollow blade shafts (13) are arranged in a staggered manner.
6. The closed blade stirring sludge drying system of claim 1, wherein: the bottom of the cylinder body (11) is provided with a supporting leg (22), and the supporting leg (22) is arranged on a base (23).
7. The closed blade stirring sludge drying system of claim 1, wherein: each horizontal hollow blade shaft (13) is connected with a driving device (15).
8. The closed blade stirring sludge drying system of claim 1, wherein: the sludge inlet (2) is arranged at the upper part of one side of the cylinder body (11), the sludge discharge port (9) is arranged at the lower part of the other side of the cylinder body (11), and sludge moves from the direction of the sludge inlet (2) to the direction of the sludge discharge port (9) through the rotation of the hollow wedge-shaped blade (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940859.8U CN212640266U (en) | 2020-09-08 | 2020-09-08 | Closed paddle stirring sludge drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940859.8U CN212640266U (en) | 2020-09-08 | 2020-09-08 | Closed paddle stirring sludge drying system |
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| CN212640266U true CN212640266U (en) | 2021-03-02 |
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| CN202021940859.8U Active CN212640266U (en) | 2020-09-08 | 2020-09-08 | Closed paddle stirring sludge drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047607A (en) * | 2020-09-08 | 2020-12-08 | 江苏华俊环保科技有限公司 | Closed paddle stirring sludge drying system |
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2020
- 2020-09-08 CN CN202021940859.8U patent/CN212640266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047607A (en) * | 2020-09-08 | 2020-12-08 | 江苏华俊环保科技有限公司 | Closed paddle stirring sludge drying system |
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