CN212532723U - Split type sludge drying device - Google Patents
Split type sludge drying device Download PDFInfo
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- CN212532723U CN212532723U CN202021176663.6U CN202021176663U CN212532723U CN 212532723 U CN212532723 U CN 212532723U CN 202021176663 U CN202021176663 U CN 202021176663U CN 212532723 U CN212532723 U CN 212532723U
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Abstract
The utility model discloses a split type sludge drying device belongs to sludge treatment equipment technical field, especially relates to a device, include: the pre-drying device is provided with an interlayer; the double-auger drying device is provided with a hollow shaft, the hollow shaft is connected with the interlayer, the feeding end of the double-auger drying device is provided with a crushing device, and the crushing device is connected with the discharging end of the pre-drying device. The utility model discloses a pre-drying handles and mummification handles, improves sludge drying efficiency greatly, adds breaker and has increased sludge drying surface area, improves the dehydration rate greatly.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment equipment, especially, relate to a split type sludge drying device.
Background
The 'rich water does not fall into other fields' of agricultural culture civilization does not bring social problems such as treatment and disposal of sludge and does not cause the loss of organic matters in the areas. However, the urban living collective excrement accumulated by the large-scale industrial innovation has the characteristic of scale, the sewage, sludge and waste treatment becomes a derivative of urban economy until the urban environment is changed into new danger, and the sludge far away from farmlands loses the natural property and economic value of the sludge as fertilizer. In the case of industrial development, a series of sludge problems are caused, so that certain sludge drying is required, otherwise environmental problems become prominent.
The management of municipal sludge is a worldwide social and environmental problem. The advantages of sludge drying and its role in sludge management systems are becoming increasingly recognized. With the national emphasis on the green, cyclic and low-carbon technology, sludge drying treatment plays an important role in the treatment modes of mechanical dehydration, heat drying, anaerobic fermentation and drying incineration. The dewatered sludge is dried, so that the treatment targets of reduction, harmlessness and stabilization of the sludge are realized, and the sludge is greatly convenient to transport. In the prior art, the sludge drying equipment has complex structure, poor drying effect and high heat energy consumption, and does not meet the aims of green, circulation, low carbon and environmental protection.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems of complex structure and poor drying effect of the sludge drying equipment in the prior art.
The utility model provides a technical scheme as follows:
the utility model provides a split type sludge drying device which characterized in that includes:
the pre-drying device is provided with an interlayer;
the double-auger drying device is provided with a hollow shaft, the hollow shaft is connected with the interlayer, the feeding end of the double-auger drying device is provided with a crushing device, and the crushing device is connected with the discharging end of the pre-drying device.
Preferably, the interlayer inlet is connected with a heat conduction oil interface, the interlayer outlet is connected with a first pipeline, the first pipeline is connected with a second pipeline, the second pipeline is connected with the hollow shaft, and the hollow shaft outlet is connected with the heat conduction oil outlet through a third pipeline. The heat conducting oil is introduced into the interlayer to realize the pre-drying treatment of the sludge, and then the sludge enters the hollow shaft to realize the secondary drying treatment in the double-auger drying device.
Preferably, the third pipeline is provided with a branch, the branch and the first pipeline are connected with the second pipeline together, the first pipeline is provided with a first flow valve, and the branch is provided with a second flow valve. The temperature of the heat-conducting oil entering the hollow shaft is controlled by adjusting the opening or closing of the first flow valve and the second flow valve.
Preferably, the pre-drying device further comprises a feed inlet, and the feed inlet is in a conical expansion shape. Is beneficial to dispersing the fed sludge into thin cakes, thereby improving the drying efficiency.
Preferably, the pre-drying device further comprises a pre-drying chamber, the interlayer is arranged on the outer wall of the pre-drying chamber, a spiral conveying component is arranged in the pre-drying chamber, and the spiral conveying component is connected with the motor. The motor drives the spiral conveying part to convey sludge, and the heat conduction oil is introduced into the interlayer, so that the sludge is indirectly heated by the heat conduction oil in the conveying process.
Preferably, a drying bin is arranged outside the hollow shaft, and the drying bin is connected with a wind control system. The drying bin is used for conveying dried sludge, and hot air generated in the process of drying the sludge is controlled by the air control system to circulate or be discharged.
Preferably, the air control system include with the first tuber pipe of mummification storehouse intercommunication, first tuber pipe is connected with second tuber pipe and third tuber pipe respectively, the second tuber pipe is connected with the draught fan, the draught fan is connected with the chimney, the third tuber pipe with mummification storehouse intercommunication, be equipped with circulating fan on the third tuber pipe. When the circulating fan works, a circulating loop is formed among the drying bin, the first pipeline and the third pipeline, heat preservation is facilitated, and when the draught fan works, the draught fan is used for exhausting redundant air in the system and exhausting the redundant air through a chimney after the redundant air is treated to reach the emission standard.
Preferably, a first valve is arranged on the first air pipe, and a second valve is arranged on the second air pipe. The first and second valves are used to control the flow of air in the respective ducts.
Preferably, the drying bin is also provided with a discharge hole. Used for discharging the treated dried sludge.
By adopting the technical means, the technical effects are as follows:
(1) the utility model discloses a pre-drying handles and mummification handles, improves sludge drying efficiency greatly, adds breaker and has increased sludge drying surface area, improves the dehydration rate greatly.
(2) The double-auger drying device is provided with a temperature regulator, each pipeline of the heat conducting oil is provided with a thermometer, and the control device controls the flow of the heat conducting oil pipeline according to the detection temperature of different thermometers, so that the effective utilization of heat is realized, and the energy is saved.
(3) The utility model discloses simple structure is compact, and occupation space is little, and is with low costs.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a pre-drying device; 1-1, interlayer; 1-2, pre-drying a cavity; 1-3, a feed inlet; 1-4, a screw conveying component; 1-5, a heat conducting oil interface; 1-6, a motor; 2. a double-auger drying device; 2-1, a hollow shaft; 2-2, a drying bin; 2-3 heat conducting oil outlet; 2-4, a discharge hole; 3. a crushing device; 3-1, a first pipeline; 3-2, a second pipeline; 3-2-1, branch circuit; 3-3, a third pipeline; 4-1, a first flow valve; 4-2, a second flow valve; 5-1, a first air pipe; 5-1-1, a first valve; 5-2, a second air pipe; 5-2-1, a second valve; 5-3, a third air pipe; 5-3-1, circulating fan; 6. an induced draft fan; 7. and (4) a chimney.
Detailed Description
A split type sludge drying device comprises a pre-drying device 1, wherein the pre-drying device 1 comprises a pre-drying chamber 1-2, an interlayer 1-1 is arranged on the outer wall of the pre-drying chamber 1-2, a spiral conveying part 1-4 is arranged in the pre-drying chamber 1-2, and the spiral conveying part 1-4 is connected with a motor 1-6. The motors 1-6 drive the spiral conveying parts 1-4 to convey sludge, and heat conduction oil is introduced into the interlayer 1-1, so that the sludge is indirectly heated by the heat conduction oil in the conveying process. The pre-drying device 1 further comprises a feed inlet 1-3, and the feed inlet 1-3 is in a conical expansion shape. Is beneficial to dispersing the fed sludge into thin cakes, thereby improving the drying efficiency. The water content of the sludge after the pre-drying treatment is 60-65%.
A split type sludge drying device also comprises a double-auger drying device 2 with a hollow shaft 2-1, wherein the hollow shaft 2-1 is connected with the interlayer 1-1; a drying bin 2-2 is arranged outside the hollow shaft 2-1. The double-auger drying device 2 is characterized in that a crushing device 3 is arranged at the feed end of the double-auger drying device 2, and the crushing device 3 is meshed through a gear and drives the gear to rotate under the driving of external force so as to crush sludge. The crushing device 3 is respectively connected with the discharge end of the pre-drying device 1 and the drying bin 2-2. The drying bin 2-2 is connected with an air control system. The air control system comprises a first air pipe 5-1 communicated with the drying bin 2-2, the first air pipe 5-1 is respectively connected with a second air pipe 5-2 and a third air pipe 5-3, the second air pipe 5-2 is connected with an induced draft fan 6, the induced draft fan 6 is connected with a chimney, the third air pipe 5-3 is communicated with the drying bin 2-2, and a circulating fan 5-3-1 is arranged on the third air pipe 5-3. The first air pipe 5-1 is provided with a first valve 5-1-1, and the second air pipe 5-2 is provided with a second valve 5-2-1.
An inlet of the interlayer 1-1 is connected with a heat conduction oil interface 1-5, an outlet of the interlayer 1-1 is connected with a first pipeline 3-1, the first pipeline 3-1 is connected with a second pipeline 3-2, the second pipeline 3-2 is connected with the hollow shaft 2-1, and an outlet of the hollow shaft 2-1 is connected with a heat conduction oil outlet 2-3 through a third pipeline 3-3. The third pipeline 3-3 is provided with a branch 3-2-1, the branch 3-2-1 and the first pipeline 3-1 are connected with the second pipeline 3-2 together, the first pipeline 3-1 is provided with a first flow valve 4-1, the branch 3-2 is provided with a second flow valve 4-2, and the temperature of the heat transfer oil entering the hollow shaft is controlled by adjusting the opening or closing of the first flow valve 4-1 and the second flow valve 4-2.
The drying bin 2-2 is also provided with a discharge port 2-4. Used for discharging the treated dried sludge.
The working principle of the utility model is as follows:
(1) starting equipment, preheating the device, wherein heat conduction oil enters an interlayer 1-1 through a heat conduction oil interface 1-5, sequentially enters a hollow shaft 2-1 through an outlet of the interlayer 1-1 through a first pipeline 3-1 and a second pipeline 3-2, is conveyed to a heat conduction oil outlet 2-3 through a third pipeline 3-3 and is discharged, or is conveyed to a branch 3-2-1 and circularly enters the hollow shaft 2-1 through the branch 3-2-1;
(2) the temperature of heat conducting oil entering the hollow shaft 2-1 is controlled by adjusting the opening or closing of the first flow valve 4-1 and the second flow valve 4-2, so that the generation of toxic gases such as ammonia gas and the like due to overhigh temperature is prevented;
(3) when the temperature of the double-auger drying device 2 does not reach the set temperature T0When the temperature in the system is low, the first valve 5-1-1 is opened (or the opening degree is adjusted to be large), the second valve 5-2-1 is closed, and the drying bin 2-2, the first pipeline 3-1 and the third pipeline 3-3 form an internal circulation system under the drive of the circulating fan 5-3-1, so that heat loss is prevented, and the temperature of the drying bin 2-2 is maintained; on the contrary, the first valve 5-1-1 is closed, the second valve 5-2-1 is opened (or the opening degree is adjusted to be large), hot gas and dried and evaporated water vapor are pumped out under the action of the draught fan 6 and discharged through a chimney, and the danger caused by overhigh pressure in the drying bin 2-2 is prevented;
(4) sludge to be treated is added into a pre-drying device 1 from a feed inlet 1-3, the feed inlet 1-3 is in a conical enlarged shape, which is beneficial to dispersing the fed sludge into thin cakes, so that the drying efficiency is improved, the sludge is conveyed into a pre-drying cavity 1-2 through a spiral conveying part 1-4 under the driving of a motor 1-6, the water content of the sludge is 60-65% after the sludge is subjected to the indirect drying treatment through heat conducting oil of an interlayer 1-1, and the sludge is likely to be caked, so that the sludge after the pre-drying treatment enters a crushing device 3, the crushing device 3 is in gear engagement, an external force drives the gear to rotate, the sludge is crushed, the caking and blockage of equipment are prevented, the crushed sludge enters a drying bin 2-2 of a double-auger drying device 2, the double-auger drying device 2 comprises two hollow shafts 2-1, the two hollow shafts 2-1 are arranged in the drying bin 2-2, the outer wall of the hollow shaft 2-1 is of a spiral structure, external force drives the hollow shaft 2-1 to rotate, so that sludge is driven to rotate and convey in the drying bin 2-2, meanwhile, heat conduction oil in the hollow shaft 2-1 heats and dries the sludge, and the dried sludge is discharged through the discharge port 2-4.
Claims (9)
1. The utility model provides a split type sludge drying device which characterized in that includes:
the pre-drying device (1) is provided with an interlayer (1-1);
the double-auger drying device (2) is provided with a hollow shaft, the hollow shaft (2-1) is connected with the interlayer (1-1), the feeding end of the double-auger drying device (2) is provided with a crushing device (3), and the crushing device (3) is connected with the discharging end of the pre-drying device (1).
2. The split type sludge drying device according to claim 1, wherein a heat conducting oil port (1-5) is connected to an inlet of the interlayer (1-1), an outlet of the interlayer (1-1) is connected to a first pipeline (3-1), the first pipeline (3-1) is connected to a second pipeline (3-2), the second pipeline (3-2) is connected to the hollow shaft (2-1), and an outlet of the hollow shaft (2-1) is connected to the heat conducting oil outlet (2-3) through a third pipeline (3-3).
3. The split type sludge drying device according to claim 2, wherein the third pipeline (3-3) is provided with a branch (3-2-1), the branch (3-2-1) and the first pipeline (3-1) are connected with the second pipeline (3-2) together, the first pipeline (3-1) is provided with a first flow valve (4-1), and the branch (3-2-1) is provided with a second flow valve (4-2).
4. The split type sludge drying device according to claim 1, wherein the pre-drying device (1) further comprises a feeding hole (1-3), and the feeding hole (1-3) is in a conical enlarged shape.
5. The split type sludge drying device according to claim 1, wherein the pre-drying device (1) further comprises a pre-drying chamber (1-2), the interlayer (1-1) is arranged on the outer wall of the pre-drying chamber (1-2), a spiral conveying component (1-4) is arranged in the pre-drying chamber (1-2), and the spiral conveying component (1-4) is connected with a motor (1-6).
6. The split type sludge drying device according to claim 1, wherein a drying bin (2-2) is arranged outside the hollow shaft (2-1), and the drying bin (2-2) is connected with an air control system.
7. The split type sludge drying device of claim 6, wherein the air control system comprises a first air pipe (5-1) communicated with the drying chamber (2-2), the first air pipe (5-1) is respectively connected with a second air pipe (5-2) and a third air pipe (5-3), the second air pipe (5-2) is connected with an induced draft fan (6), the induced draft fan (6) is connected with a chimney (7), the third air pipe (5-3) is communicated with the drying chamber (2-2), and a circulating fan (5-3-1) is arranged on the third air pipe (5-3).
8. The split type sludge drying device of claim 7, wherein a first valve (5-1-1) is disposed on the first air pipe (5-1), and a second valve (5-2-1) is disposed on the second air pipe (5-2).
9. The split type sludge drying device according to claim 6, wherein the drying bin (2-2) is further provided with a discharge hole (2-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021176663.6U CN212532723U (en) | 2020-06-23 | 2020-06-23 | Split type sludge drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021176663.6U CN212532723U (en) | 2020-06-23 | 2020-06-23 | Split type sludge drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212532723U true CN212532723U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021176663.6U Active CN212532723U (en) | 2020-06-23 | 2020-06-23 | Split type sludge drying device |
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|---|---|
| CN (1) | CN212532723U (en) |
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- 2020-06-23 CN CN202021176663.6U patent/CN212532723U/en active Active
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