CN212051079U - Sludge drying system - Google Patents

Abstract

The utility model discloses a sludge drying system, which comprises a feeding system, a drying system and a dried sludge collecting system which are sequentially communicated, wherein the drying system comprises a drying route and a rotary air-drying route, the inlet of the drying route and the inlet of the rotary air-drying route are both connected with the feeding system, the outlet of the drying route and the outlet of the rotary air-drying route are both communicated with the dried sludge collecting system, the feeding system comprises a control system which controls the feeding system to be communicated with the drying route or communicated with the rotary air-drying route, when the sludge drying system is in use, when the sludge amount is more than or equal to 100 tons/day, the feeding system sends the sludge into the drying route for drying under the control of the control system, when the sludge amount is less than 100 tons/day, the feeding system sends the sludge into the rotary air-drying route for drying under the control of the control system, the dried sludge is finally collected in the dried sludge collection system, so that the water content of the sludge can be reduced, and the energy utilization rate can be improved.

Description

Sludge drying system

Technical Field

The utility model is used for field sludge drying field especially relates to a sludge drying system.

Background

The original solid matters in the wastewater and the newly generated solid matters in the wastewater treatment are important components for forming the sludge, besides, the sludge also contains a large amount of organic pollutants, microorganisms, germs, heavy metal elements and other substances, if the sludge cannot be safely treated, the subsequent sludge treatment is influenced, the risk of secondary pollution is brought, and the environment is harmfully influenced, so that the importance of deep drying and dewatering of the sludge is obvious, but the problems of high water content of the sludge after drying treatment and excessive energy consumption in the sludge drying process generally exist in the conventional sludge drying process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a sludge drying system, it can effectively reduce the mud moisture content, improves energy utilization.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a sludge drying system, is including feeding system, mummification system and mummification mud collecting system who communicates in proper order, the mummification system air-dries the route including stoving route and rotation, the entry of stoving route with the rotatory entry of air-drying the route all with feeding system connects, the export of stoving route with the rotatory export of air-drying the route all with mummification mud collecting system intercommunication, feeding system includes control feeding system with stoving route intercommunication or feeding system with the rotatory control system who air-dries the route intercommunication.

Preferably, the feeding system further comprises a sludge feeding hopper and a conveyor which are sequentially communicated, and the control system is connected with the sludge feeding hopper and the conveyor.

Preferably, a stirrer is arranged in the sludge feeding hopper.

Preferably, the drying route comprises a first drying machine and a second drying machine which are sequentially communicated, the first drying machine is connected with the conveyor, and the second drying machine is communicated with the dried sludge collecting system.

Preferably, the rotary air drying route comprises a first drying machine and a third drying machine which are sequentially communicated, and the third drying machine is communicated with the dried sludge collecting system.

Preferably, the drying system further comprises a condenser, and the condenser is connected with the first drying machine, the second drying machine and the third drying machine.

Preferably, mummification sludge collection system is including the mummification sludge storage hopper and the outward transport device that connect gradually, mummification sludge storage hopper all with the second mummification machine with third mummification machine intercommunication.

Preferably, still include circulation quenching and tempering device, circulation quenching and tempering device's one end with mummification mud feed bin intercommunication, the other end with mud feed hopper intercommunication.

Preferably, the first drier adopts a heat pump evaporator, and the second drier adopts an annular dryer.

Preferably, the third drying machine comprises a bipolar permanent magnet variable frequency air compressor, a blower and a separating drum.

One of the above technical solutions has at least one of the following advantages or beneficial effects: when the sludge drying system is used, when the amount of sludge is more than or equal to 100 tons/day, the feeding system sends the sludge into the drying route for drying under the control of the control system, when the amount of sludge is less than 100 tons/day, the feeding system sends the sludge into the rotary air drying route for drying under the control of the control system, and the dried sludge is finally collected in the dried sludge collection system, so that the moisture content of the sludge can be reduced and the energy utilization rate can be improved.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic diagram of an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, an embodiment of the present invention provides a sludge drying system, including a feeding system 1, a drying system 2 and a dried sludge collection system 3 which are sequentially connected, where the drying system 2 includes a drying route 21 and a rotary air-drying route 22, an inlet of the drying route 21 and an inlet of the rotary air-drying route 22 are both connected to the feeding system 1, an outlet of the drying route 21 and an outlet of the rotary air-drying route 22 are both connected to the dried sludge collection system 3, the feeding system 1 includes a control system 12 for controlling the feeding system 1 to be connected to the drying route 21 or the feeding system 1 to be connected to the rotary air-drying route 22, in a using process, when a sludge amount is greater than or equal to 100 tons/day, the feeding system 1 sends the sludge into the drying route 21 for drying under the control of the control system 12, when the sludge amount is less than 100 tons/day, the feeding system 1 is under the control of the control system 12, and (3) conveying the sludge into a rotary air drying route 22 for drying, and finally collecting the dried sludge in a dried sludge collection system 3 for treatment. This kind of mode of selecting different mummification routes according to different sludge volumes under the prerequisite of guaranteeing effective mummification mud, can also improve energy utilization, saves electric power, and in addition, two mummification routes can also improve the fault-tolerant rate of whole mummification system 2, and when one of them mummification route appeared unusually, can also continue to use another mummification route through manual intervention's mode for deal with sludge mummification system's emergency, avoid whole system failure.

Referring to fig. 1, the feeding system 1 further includes a sludge feeding funnel 13 and a conveyor 14 which are sequentially communicated, the control system 12 is connected with the sludge feeding funnel 13 and the conveyor 14, the sludge feeding funnel 13 is used for containing sludge to be dried, in the using process, the sludge enters the conveyor 14 from the sludge feeding funnel 13, the control system 12 adjusts the conveyor 14 according to the amount of the sludge, when the control system 12 senses that the amount of the sludge entering the sludge feeding funnel 13 is greater than or equal to 100 tons/day, the control system 12 switches the conveyor 14 to the drying route 21, so that the sludge enters the drying route 21 for drying, thereby achieving the dewatering effect, when the control system 12 senses that the amount of the sludge entering the sludge feeding funnel 13 is less than 100 tons/day, the control system 12 switches the conveyor 14 to the rotary air drying route 22, so that the sludge enters the rotary air drying route 22 for drying, wherein conveyer 14 adopts tubular elastic connecting rod formula jigging conveyer, and its conveying precision is higher, and can carry at the short distance, effectively saves sludge drying's area, reduces investment cost.

Specifically, the stirrer 11 is arranged in the sludge feeding hopper 13, and the stirrer 11 simultaneously extrudes and relaxes the sludge, so that the sludge is conditioned and the sludge is promoted to move towards the lower end of the hopper.

Referring to fig. 1, specifically, the drying route 21 includes a first drier 210 and a second drier 211 which are sequentially communicated, the first drier 210 is connected with the conveyor 14, the second drier 211 is communicated with the dried sludge collection system 3, in the using process, the sludge firstly enters the first drier 210 for primary drying, and then enters the second drier 211 for secondary drying, the water content in the sludge can be greatly reduced through the two-time drying mode, so that the water content of the sludge reaches the set requirement, and the two-time drying is also beneficial to sludge granulation. The first drier 210 adopts a heat pump evaporator, the heat pump evaporator absorbs outdoor air firstly in the using process, then the air is heated by the acting of the compressor, finally the heated air is moved to the inside of the first drier 210, the moisture in the water-containing sludge in the first drier 210 is evaporated and taken away by the hot air, and the mode can achieve the effect of taking away most of the moisture in the sludge by circulating for many times. Second desiccator 211 adopts ring dress drying device, and ring dress drying device further evaporates the moisture in the mud through the mode of toasting for moisture content in the mud is lower, and ring dress drying device's ring dress structure can make the area of contact that gets into in second desiccator 211 mud and drying device bigger, and the stoving effect is better.

Referring to fig. 1, the rotary air drying line 22 includes a first drier 210 and a third drier 221 which are sequentially communicated, the third drier 221 is communicated with a dried sludge collection system 3, when the amount of sludge is less than 100 tons/day, the sludge is dried through the rotary air drying line 22, similarly, the sludge firstly enters the first drier 210 for primary drying and then enters the third drier 221 for secondary drying, the moisture content in the sludge is greatly reduced by the secondary drying, wherein the third drier 221 includes a bipolar permanent magnet variable frequency air compressor, a blower and a separation barrel, the bipolar permanent magnet variable frequency air compressor compresses and heats air and then blows the air through the blower to generate high-heat strong air flow, the high-heat strong air flow enters the separation barrel to generate high-speed rotating air flow, the high-speed rotating air flow drives the sludge in the separation barrel to rotate at high speed, so that the sludge collides in the separation barrel, thereby be extruded moisture and come to take away through the hot-air, accomplish the mummification process, wherein, bipolar permanent magnetism frequency conversion air compressor machine can produce local shock wave at the feed inlet, is favorable to broken mud, and after mud is broken, the surface area increases, makes the amount of wind that mud contacted in unit volume increase, more does benefit to the sludge drying.

Referring to fig. 1, the drying system 2 further includes a condenser, and the condenser is connected to the first drying machine 210, the second drying machine 211 and the third drying machine 221, and is used for rapidly cooling and collecting moisture carried out by sludge, so as to improve the drying efficiency of the sludge, and also has a deodorizing function.

Referring to fig. 1, the dried sludge collection system 3 includes a dried sludge bin 31 and an outward transportation device 32 which are connected in sequence, the dried sludge bin 31 is communicated with a second drier 211 and a third drier 221, the sludge dried by a drying line 21 is discharged from the second drier 211 and enters the dried sludge bin 31, the sludge dried by a rotary air-drying line 22 is discharged from the third drier 221 and enters the dried sludge bin 31, the dried sludge bin 31 collects the sludge, part of the dried sludge is transported to the outside by the outward transportation device 32, and the other part of the dried sludge is left in the dried sludge bin 31 for conditioning.

Specifically, referring to fig. 1, in some embodiments, the sludge drying system further includes a circulation conditioning device 4, one end of the circulation conditioning device 4 is communicated with the dried sludge bin 31, and the other end of the circulation conditioning device is communicated with the sludge feeding funnel 13, when the water content of the sludge in the sludge feeding funnel 13 is high, the sludge after drying is conveyed to the sludge feeding funnel 13 through the circulation conditioning device 4, and conditioning and stirring are performed through the stirrer 11, so that the water content in the sludge feeding funnel 13 is reduced, and the drying efficiency of the sludge drying system is higher.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims (10)

1. A sludge drying system is characterized in that: including feeding system, mummification system and mummification mud collecting system who communicates in proper order, the mummification system air-dries the route including stoving route and rotation, the entry of stoving route with the rotatory entry that air-dries the route all with feeding system connects, the export of stoving route with the rotatory export that air-dries the route all with mummification mud collecting system communicates, feeding system is including control feeding system with stoving route intercommunication or with the rotatory control system who air-dries the route intercommunication.

2. The sludge drying system of claim 1, wherein: the feeding system further comprises a sludge feeding hopper and a conveyor which are sequentially communicated, and the control system is connected with the sludge feeding hopper and the conveyor.

3. The sludge drying system of claim 2, wherein: and a stirrer is arranged in the sludge feeding funnel.

4. The sludge drying system of claim 2, wherein: the drying route comprises a first drying machine and a second drying machine which are sequentially communicated, the first drying machine is connected with the conveyor, and the second drying machine is communicated with the dried sludge collecting system.

5. The sludge drying system of claim 4, wherein: the rotary air drying route comprises a first drying machine and a third drying machine which are sequentially communicated, and the third drying machine is communicated with the dried sludge collecting system.

6. The sludge drying system of claim 5, wherein: the drying system further comprises a condenser, and the condenser is connected with the first drying machine, the second drying machine and the third drying machine.

7. The sludge drying system of claim 6, wherein: the drying sludge collecting system comprises a drying sludge bin and an outward conveying device which are sequentially connected, and the drying sludge bin is communicated with the second drying machine and the third drying machine.

8. The sludge drying system of claim 7, wherein: still include circulation quenching and tempering device, circulation quenching and tempering device's one end with mummification mud feed bin intercommunication, the other end with mud feed hopper intercommunication.

9. The sludge drying system of claim 4, wherein: the first drier adopts a heat pump evaporator, and the second drier adopts an annular dryer.

10. The sludge drying system of claim 5, wherein: the third drier comprises a bipolar permanent magnet variable frequency air compressor, an air blower and a separating cylinder.

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