CN215327682U - Low-energy-consumption sludge drying device utilizing blast aeration waste heat - Google Patents
Low-energy-consumption sludge drying device utilizing blast aeration waste heat Download PDFInfo
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- CN215327682U CN215327682U CN202122053848.9U CN202122053848U CN215327682U CN 215327682 U CN215327682 U CN 215327682U CN 202122053848 U CN202122053848 U CN 202122053848U CN 215327682 U CN215327682 U CN 215327682U
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Abstract
The utility model relates to the technical field of sludge treatment, and discloses a low-energy-consumption sludge drying device utilizing blast aeration waste heat, which comprises a bracket fixed on the ground, a sludge drying device arranged right above the bracket, and an outer wall heating device arranged on the sludge drying device; the sludge drying device comprises a sludge drying cavity arranged on the bracket, a waste heat collecting pipe communicated with the blast aeration device and the sludge drying cavity, a supercharging device arranged at the joint of the preheating collecting pipe and the sludge drying cavity, a sludge drying pipe arranged in the sludge drying cavity and communicated with the supercharging device, and a spiral sludge discharge fan arranged on the sludge drying pipe; the device can greatly reduce energy loss in the sludge drying process and improve the sludge drying treatment efficiency.
Description
Technical Field
The utility model relates to the technical field of sludge treatment, in particular to a low-energy-consumption sludge drying device utilizing blast aeration waste heat.
Background
Many organizations and individuals at home and abroad carry out deeper research on the aspect of sludge drying, and a plurality of technologies are popularized and applied, mainly comprising heat drying, solar drying and biological drying. The heat drying process has the advantages of small occupied area and high drying speed, but has high energy consumption. The solar drying technology has the advantages of energy conservation, low operating cost, small environmental pollution and the like, but occupies a large area and is limited by weather conditions. The sludge biological drying utilizes biological heat energy generated by organic matter degradation in the microbial high-temperature aerobic fermentation process, and promotes water evaporation by a process control means, so that water is quickly removed. Although the sludge drying technology at present is continuously improved at home and abroad, such as optimizing a heat source, reducing process steps and optimizing operation parameters, the energy consumption of the drying process is determined to be higher by the characteristics of the process.
The waste heat generated by blast aeration is utilized to treat the sludge, and the sludge is dried, so that the energy loss in the treatment process can be greatly reduced; in view of the above, a device for dewatering and drying sludge with low energy consumption, high efficiency and more economy is sought, which has great social production value and meets the production requirement of sludge drying.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is as follows: reduce the energy consumption in the sludge drying process, improve the sludge drying treatment efficiency and provide a low-energy consumption sludge drying device with high economy and practicability.
The technical scheme of the utility model is as follows: a low-energy consumption type sludge drying device utilizing blast aeration waste heat comprises a support fixed on the ground, a sludge drying device arranged right above the support, and an outer wall heating device arranged on the sludge drying device;
the sludge drying device comprises a sludge drying cavity arranged on the bracket, a waste heat collecting pipe communicated with the blast aeration device and the sludge drying cavity, a supercharging device arranged at the joint of the preheating collecting pipe and the sludge drying cavity, a sludge drying pipe arranged in the sludge drying cavity and communicated with the supercharging device, and a spiral sludge discharge fan arranged on the sludge drying pipe;
the sludge drying cavity comprises a flat cavity with two semicircular arc surfaces at two sides, a sludge feeding hole which is arranged at one end of the flat cavity and has an upward opening, and a sludge discharging hole which is arranged on the side wall of the other end of the flat cavity;
the waste heat collecting pipe comprises a metal heat conduction inner pipe, a heat insulation outer pipe and a heat insulation material, wherein the heat insulation outer pipe wraps the periphery of the metal heat conduction inner pipe, and the heat insulation material is filled between the heat insulation outer pipe and the metal heat conduction inner pipe;
the sludge drying pipe comprises two drying pipe bodies which are horizontally arranged in parallel in the flat cavity and communicated with the supercharging device; the drying tube body is uniformly provided with waste heat exhaust holes and annular grooves at intervals;
the spiral mud discharging fan comprises a rotating ring arranged on the annular groove, and a mud discharging fan arranged on the rotating ring.
Further, outer wall heating device is including setting up solar heating pipe directly over the platykurtic cavity, lay the platykurtic cavity lower surface and with the water tank of solar heating pipe circulation intercommunication, and with the water tank intercommunication just is located the lateral wall heating pipe of platykurtic cavity both sides and the laminating of semicircle face.
The solar heating pipe utilizes solar energy to heat water in the water tank, and the side wall heating pipe heats the sludge drying cavity, so that the solar energy is fully utilized, and the energy consumption is effectively reduced.
Further, the interval between two drying tube bodies is less than the diameter of rotation of row's mud fan, is greater than the radius of rotation of row's mud fan to row's mud fan on two drying tube bodies sets up alternately.
Sludge can be stirred and cut by the sludge discharge fan arranged in a crossed manner, so that moisture in the sludge is fully dried, and the drying efficiency can be greatly improved.
Furthermore, a humidity sensor for detecting the water content of the sludge is arranged in the flat cavity. The humidity sensor can accurately detect the water content of the sludge and is used for determining that the sludge reaches the water content of an expected drying standard, so that drying transition is prevented, and energy consumption is increased.
Furthermore, the supercharging device comprises a supercharging cavity communicated with the waste heat collecting pipe and the flat cavity, a steam generator communicated with the supercharging cavity, and a one-way control valve arranged at the joint of the steam generator and the supercharging cavity.
The steam generator can introduce high-temperature steam into the pressurizing cavity, so that insufficient waste heat is prevented, and higher drying efficiency is ensured.
Further, the device also comprises a controller which is electrically connected with the spiral sludge discharge fan, the supercharging device and the outer wall heating device. The whole device is convenient to operate and use through the arrangement of the controller.
The utility model has the beneficial effects that: the low-energy-consumption sludge drying device utilizing the blast aeration waste heat is provided, the blast aeration waste heat can be conveyed into the pressurizing cavity through the metal heat conduction inner pipe, and then the sludge is dried through the sludge drying pipe; the two drying pipe bodies arranged side by side can dry sludge and simultaneously enable the sludge discharge fan to cut the sludge, so that the drying efficiency is greatly improved; on one hand, the waste heat can be compensated through the arrangement of the steam generator; on the other hand, the device can be pressurized, so that the penetrating power of gas is increased, and the sludge can be dried; the solar heating pipe can be used for heating the sludge by utilizing solar energy, so that the energy consumption of the whole device is further effectively reduced.
Drawings
FIG. 1 is a schematic structural view of the whole of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a pressure intensifying apparatus according to embodiment 1 of the present invention;
FIG. 3 is a schematic view showing the structure of a sludge drying pipe in example 1 of the present invention;
FIG. 4 is a schematic structural view of an outer wall heating apparatus according to embodiment 2 of the present invention;
the system comprises a support 1, a sludge drying device 2, a sludge drying cavity 20, a flat cavity 200, a sludge feeding hole 201, a sludge discharging hole 202, a waste heat collecting pipe 21, a metal heat conduction inner pipe 210, a heat insulation outer pipe 211, a pressurizing device 22, a pressurizing cavity 220, a steam generator 221, a one-way control valve 222, a sludge drying pipe 23, a drying pipe body 230, a waste heat exhaust hole 231, an annular groove 232, a spiral sludge discharge fan 24, a rotating ring 240, a sludge discharge fan 241, an outer wall heating device 3, a solar heating pipe 30, a water tank 31 and a side wall heating pipe 32.
Detailed Description
Example 1: as shown in fig. 1, the low-energy consumption sludge drying device using blast aeration residual heat comprises a support 1 fixed on the ground, a sludge drying device 2 arranged right above the support 1, and an outer wall heating device 3 arranged on the sludge drying device 2;
the sludge drying device 2 comprises a sludge drying cavity 20 arranged on the bracket 1, a waste heat collecting pipe 21 communicated with the blast aeration device and the sludge drying cavity 20, a supercharging device 22 arranged at the joint of the preheating collecting pipe 21 and the sludge drying cavity 20, a sludge drying pipe 23 arranged in the sludge drying cavity 20 and communicated with the supercharging device 22, and a spiral sludge discharge fan 24 arranged on the sludge drying pipe 23;
the sludge drying cavity 20 comprises a flat cavity 200 with two semicircular arc surfaces on two sides, a sludge feed port 201 which is arranged at one end of the flat cavity 200 and has an upward opening, and a sludge discharge port 202 which is arranged on the side wall of the other end of the flat cavity 200;
as shown in fig. 2, the waste heat collecting pipe 21 includes a metal heat conducting inner pipe 210, a heat insulating outer pipe 211 wrapped around the metal heat conducting inner pipe 210, and a heat insulating material filled between the heat insulating outer pipe 211 and the metal heat conducting inner pipe 210;
as shown in fig. 3, the sludge drying pipe 23 includes two drying pipe bodies 230 horizontally arranged in parallel inside the flat cavity 200 and communicated with the pressurizing device 22; the drying tube body 230 is uniformly provided with residual heat exhaust holes 231 and annular grooves 232 at intervals;
the spiral mud discharging fan 24 comprises a rotating ring 240 arranged on the annular groove 232 and a mud discharging fan 241 arranged on the rotating ring 240.
The distance between the two drying pipe bodies 230 is smaller than the rotating diameter of the mud discharge fan 241 and larger than the rotating radius of the mud discharge fan 241, and the mud discharge fans 241 on the two drying pipe bodies 230 are arranged in a crossed manner.
A humidity sensor for detecting the water content of the sludge is arranged in the flat cavity 200.
As shown in fig. 2, the pressurizing device 22 includes a pressurizing chamber 220 communicating the waste heat collecting pipe 21 and the flat cavity 200, a steam generator 221 communicating with the pressurizing chamber 220, and a check valve 222 provided at a junction of the steam generator 221 and the pressurizing chamber 220.
And the device also comprises a controller which is electrically connected with the spiral sludge discharge fan 24, the supercharging device 22 and the outer wall heating device 3.
Wherein the heat insulation material is polystyrene foam; the outer wall heating device 3 adopts a commercially available electric heating device; the controller adopts a commercial PLC controller; the steam generator 221, the one-way control valve 222, and the humidity sensor are commercially available in the art and the specific product model can be selected by one skilled in the art as desired.
The working principle and the method of the device are as follows:
the sludge to be dried enters the sludge feeding hole 201, hot air generated by the blowing device is introduced into the waste heat collecting pipe 21, the hot air is conveyed into the pressurizing cavity 220 through the metal heat conduction inner pipe 210, is pressurized by the steam generator 221 and then enters the two sludge drying pipes 23, and then is ejected out through the waste heat exhaust holes 231 to be subjected to heating and drying treatment on the sludge; meanwhile, the spiral sludge discharge fan 24 rotates to perform cross cutting on the sludge, so that the sludge is fully dried; the moisture content detected by the humidity sensor reaches the drying standard, so that the sludge is discharged from the sludge discharge port 202.
Example 2:
the difference from example 1 is:
as shown in fig. 4, the outer wall heating device 3 includes a solar heating pipe 30 disposed right above the flat cavity 200, a water tank 31 laid on the lower surface of the flat cavity 200 and in circulating communication with the solar heating pipe 30, and a sidewall heating pipe 32 communicated with the water tank 31 and located at both sides of the flat cavity 200 and attached to the semicircular arc surface.
Claims (6)
1. A low-energy consumption type sludge drying device utilizing blast aeration waste heat is characterized by comprising a support (1) fixed on the ground, a sludge drying device (2) arranged right above the support (1), and an outer wall heating device (3) arranged on the sludge drying device (2);
the sludge drying device (2) comprises a sludge drying cavity (20) arranged on the bracket (1), a waste heat collecting pipe (21) communicated with the blast aeration device and the sludge drying cavity (20), a supercharging device (22) arranged at the joint of the waste heat collecting pipe (21) and the sludge drying cavity (20), a sludge drying pipe (23) arranged in the sludge drying cavity (20) and communicated with the supercharging device (22), and a spiral sludge discharge fan (24) arranged on the sludge drying pipe (23);
the sludge drying cavity (20) comprises a flat cavity (200) with two semicircular arc surfaces at two sides, a sludge feeding hole (201) which is arranged at one end of the flat cavity (200) and has an upward opening, and a sludge discharging hole (202) which is arranged on the side wall of the other end of the flat cavity (200);
the waste heat collecting pipe (21) comprises a metal heat conduction inner pipe (210), a heat insulation outer pipe (211) wrapped on the periphery of the metal heat conduction inner pipe (210), and a heat insulation material filled between the heat insulation outer pipe (211) and the metal heat conduction inner pipe (210);
the sludge drying pipe (23) comprises two drying pipe bodies (230) which are horizontally arranged in parallel in the flat cavity (200) and communicated with the supercharging device (22); the drying tube body (230) is uniformly provided with waste heat exhaust holes (231) and annular grooves (232) at intervals;
mud fan (24) are arranged including setting up swivel becket (240) on ring channel (232) to the spiral, install row mud fan (241) on swivel becket (240).
2. The sludge drying device with low energy consumption by using the waste heat of blast aeration according to claim 1, wherein the outer wall heating device (3) comprises a solar heating pipe (30) arranged right above the flat cavity (200), a water tank (31) laid on the lower surface of the flat cavity (200) and in circulating communication with the solar heating pipe (30), and a side wall heating pipe (32) which is in communication with the water tank (31) and is positioned at two sides of the flat cavity (200) and attached to the semicircular arc surface.
3. The sludge drying device using the residual heat of blast aeration according to claim 1, wherein the distance between the two drying pipe bodies (230) is smaller than the rotation diameter of the sludge discharge fan (241) and larger than the rotation radius of the sludge discharge fan (241), and the sludge discharge fans (241) on the two drying pipe bodies (230) are arranged in a crossing manner.
4. The low-energy-consumption sludge drying device utilizing the waste heat of blast aeration according to claim 1, wherein a humidity sensor for detecting the water content of the sludge is arranged in the flat cavity (200).
5. The sludge drying device with low energy consumption by using the waste heat of blast aeration according to claim 1, wherein the pressurizing device (22) comprises a pressurizing cavity (220) for communicating the waste heat collecting pipe (21) and the flat cavity (200), a steam generator (221) communicated with the pressurizing cavity (220), and a one-way control valve (222) arranged at the joint of the steam generator (221) and the pressurizing cavity (220).
6. The low-energy-consumption sludge drying device utilizing the waste heat of blast aeration according to claim 1, further comprising a controller electrically connected with the spiral sludge discharge fan (24), the supercharging device (22) and the outer wall heating device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122053848.9U CN215327682U (en) | 2021-08-27 | 2021-08-27 | Low-energy-consumption sludge drying device utilizing blast aeration waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122053848.9U CN215327682U (en) | 2021-08-27 | 2021-08-27 | Low-energy-consumption sludge drying device utilizing blast aeration waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215327682U true CN215327682U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122053848.9U Active CN215327682U (en) | 2021-08-27 | 2021-08-27 | Low-energy-consumption sludge drying device utilizing blast aeration waste heat |
Country Status (1)
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| CN (1) | CN215327682U (en) |
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2021
- 2021-08-27 CN CN202122053848.9U patent/CN215327682U/en active Active
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