CN220376537U - Sludge treatment system - Google Patents

Abstract

The present application relates to a sludge treatment system, comprising: the sludge drying device is used for removing water in the wet sludge; the dry sludge conveying device is arranged at the discharge end of the sludge drying device; the dry mud bin is arranged at the discharge end of the dry mud conveying device; the cooling device is arranged at the outer side of the dry sludge conveying device and used for reducing the temperature of the dry sludge on the dry sludge conveying device; and the first fan is arranged in the dry mud bin and is used for ventilating the dry mud bin. The technical scheme of the application effectively solves the technical problems that the dry sludge treatment of the traditional sludge treatment system is not timely and the temperature of the dry sludge is high.

Description

Sludge treatment system

Technical Field

The application relates to the technical field of sludge treatment, in particular to a sludge treatment system.

Background

In the field of sludge treatment, wet sludge with a water content of 80% or more generally needs to be dehydrated and dried to reduce the water content in the sludge. At present, more than two sludge drying lines are generally arranged in a sludge drying workshop, so that the wet sludge is dehydrated and dried. When the sludge drying line works normally, a large amount of dry sludge is generated at the discharge end of the sludge drying line, and if the sludge drying line is not cleaned for a long time, a sludge treatment system is blocked and paralyzed. Therefore, a dry sludge conveying device is generally arranged at the discharge end of the sludge drying line so as to realize the transportation and treatment of dry sludge. And because the temperature of the dried sludge is high, the dried sludge needs to be cooled before entering a storage bin.

In the related art, a spraying system is generally arranged in a storage bin to realize the spraying and cooling of the dry sludge, so that dangerous phenomena such as smoldering and the like caused by high temperature of the dry sludge are avoided. However, spray cooling increases the water content of the dry sludge, which may cause the dry sludge to become wet sludge again, resulting in waste of the sludge dewatering and drying process.

Disclosure of Invention

The application provides a sludge treatment system to solve the technical problems of untimely dry sludge treatment and high dry sludge temperature of the traditional sludge treatment system.

To this end, embodiments of the present application provide a sludge treatment system, comprising:

the sludge drying device is used for removing water in the wet sludge;

the dry sludge conveying device is arranged at the discharge end of the sludge drying device;

the dry mud bin is arranged at the discharge end of the dry mud conveying device;

the cooling device is arranged at the outer side of the dry sludge conveying device and used for reducing the temperature of the dry sludge on the dry sludge conveying device; and

the first fan is arranged in the dry mud bin and is used for ventilating the dry mud bin.

In one possible embodiment, the sludge treatment system further comprises a first detection member disposed in the dry sludge bin, the first detection member being electrically connected to the first fan, the first detection member being configured to detect a temperature of the dry sludge in the dry sludge bin.

In one possible embodiment, the sludge treatment system further comprises a second detection member disposed in the dry sludge bin, the second detection member being electrically connected to the first fan, the second detection member being configured to detect a concentration of the combustible gas in the dry sludge bin.

In one possible embodiment, the sludge treatment system further comprises a fire-retardant gas providing device, the fire-retardant gas providing device is communicated with the dry sludge bin, and the second detecting member is electrically connected to the fire-retardant gas providing device.

In one possible embodiment, the sludge treatment system further comprises an arch breaking device arranged at the bottom of the dry sludge bin.

In one possible implementation mode, the cooling device comprises a cold source and a liquid pipe assembly, wherein a liquid inlet of the liquid pipe assembly is communicated with an outlet of the cold source, a liquid outlet of the liquid pipe assembly is communicated with an inlet of the cold source, and at least part of the liquid pipe assembly is wound on the dry mud conveying device.

In one possible implementation mode, the sludge drying device comprises a feeding component, a sludge drying machine and a heat source, wherein the feeding component is arranged at the feeding end of the sludge drying machine, and the dry sludge conveying device is arranged at the discharging end of the sludge drying machine; the heat source is used for heating and drying the wet sludge in the sludge dryer.

In one possible embodiment, the sludge drying device further comprises a dust removal assembly, and the dust removal assembly is arranged at the discharge end of the sludge drying machine.

In one possible embodiment, the dust removal assembly comprises a dust remover and a second fan, the dust remover is arranged at the discharge end of the sludge drier, and the second fan is arranged at the discharge end of the dust remover.

According to the sludge treatment system provided by the embodiment of the application, the sludge treatment system comprises: the sludge drying device is used for removing water in the wet sludge; the dry sludge conveying device is arranged at the discharge end of the sludge drying device; the dry mud bin is arranged at the discharge end of the dry mud conveying device; the cooling device is arranged at the outer side of the dry sludge conveying device and used for reducing the temperature of the dry sludge on the dry sludge conveying device; and the first fan is arranged in the dry mud bin and is used for ventilating the dry mud bin. According to the technical scheme, the concrete configuration of the sludge treatment system is optimized, so that the timely transfer of the dry sludge is realized, the dry sludge is prevented from accumulating at the discharge end of the sludge drying line, the sludge treatment process is smoother, and the sludge treatment efficiency is higher; meanwhile, the cooling device is adopted to cool the dry sludge in the transportation process and ventilate and cool the dry sludge in the storage, so that the means of cooling by spraying water in the dry sludge is avoided, the water content of the dry sludge is ensured, the storage temperature of the dry sludge is reduced, and the storage safety of the dry sludge is effectively improved. Specifically, the sludge treatment system is configured to at least comprise a combined component of a sludge drying device, a dry sludge conveying device, a dry sludge bin, a cooling device and a first fan, wherein the sludge drying device is used for dehydrating and drying wet sludge, and the dried sludge has a higher temperature; the dry sludge conveying device is used for conveying dry sludge to the dry sludge bin, so that accumulation of the dry sludge at the discharge end of the sludge drying device is reduced; the cooling device is used for cooling the dry sludge in the transportation process, reducing the temperature of the dry sludge entering the dry sludge bin and reducing the smoldering/smoldering risk of the dry sludge due to the Gao Wenzai dry sludge bin; the dry sludge bin is used for storing dry sludge; the first fan is used for carrying out aeration cooling treatment on the dry sludge stored in the dry sludge bin, and meanwhile, odor/odorous gas emitted by the dry sludge is prevented from being enriched in the dry sludge bin. Therefore, the dried sludge can be efficiently transported by the dry sludge conveying device, and the phenomenon that the operation of a sludge treatment system is influenced due to the accumulation of the dry sludge at the discharge end of the sludge drying device is avoided; meanwhile, the dry sludge in the transferring process is cooled by the cooling device, so that the dry sludge is kept at a lower temperature in a state of lower water content, and the process that a spraying system for cooling is configured in a dry sludge bin in the traditional sludge treatment process is avoided, and the temperature of the dry sludge is reduced by spraying water on the dry sludge.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model. In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort. One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic structural diagram of a sludge treatment system according to an embodiment of the present application.

Reference numerals illustrate:

100. a sludge drying device; 110. a feed assembly; 120. a sludge drier; 130. a heat source; 140. a dust removal assembly; 141. a dust remover; 142. a second fan;

200. a dry mud conveying device;

300. a dry mud bin;

400. a cooling device; 410. a cold source; 420. a liquid tube assembly;

500. a first fan; 600. a first detecting member; 700. a second detecting member; 800. a flame retardant gas supply device; 900. an arch breaking device.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

Referring to fig. 1, an embodiment of the present application provides a sludge treatment system, comprising: the device comprises a sludge drying device 100, a dried sludge conveying device 200, a dried sludge bin 300, a cooling device 400 and a first fan 500.

A sludge drying device 100 for removing moisture from wet sludge;

the dry sludge conveying device 200 is arranged at the discharge end of the sludge drying device 100;

the dry mud bin 300 is arranged at the discharge end of the dry mud conveying device 200;

the cooling device 400 is arranged outside the dry sludge conveying device 200 and is used for reducing the temperature of the dry sludge on the dry sludge conveying device 200; and

the first fan 500 is arranged on the dry mud bin 300, and the first fan 500 is used for ventilating the dry mud bin 300.

In the embodiment, the concrete configuration of the sludge treatment system is optimized to realize the timely transfer of the dry sludge, so that the dry sludge is prevented from accumulating at the discharge end of the sludge drying line, the sludge treatment process is smoother, and the sludge treatment efficiency is higher; meanwhile, the cooling device 400 is adopted to cool the dry sludge in the transportation process and the first fan 500 is adopted to ventilate and cool the dry sludge in the storage process, so that the means of cooling by spraying water in the dry sludge is avoided, the water content of the dry sludge is ensured, the storage temperature of the dry sludge is reduced, and the storage safety of the dry sludge is effectively improved.

Specifically, the sludge treatment system is configured to at least comprise a sludge drying device 100, a dry sludge conveying device 200, a dry sludge bin 300, a cooling device 400 and a combined component of a first fan 500, wherein the sludge drying device 100 is used for dehydrating and drying wet sludge, and the dried dry sludge has a higher temperature; the dry sludge conveying device 200 is used for conveying dry sludge to the dry sludge bin 300, so that the accumulation of the dry sludge at the discharge end of the sludge drying device 100 is reduced; the cooling device 400 is used for cooling the dry sludge in the transportation process, reducing the temperature of the dry sludge entering the dry sludge bin 300, and reducing the risk of smoldering/smoldering of the dry sludge due to the Gao Wenzai dry sludge bin 300; the dry sludge bin 300 is used for storing dry sludge; the first fan 500 is disposed in the dry sludge bin 300, and is used for ventilating/changing air of the dry sludge bin 300 to reduce the temperature of the dry sludge bin 300, and at the same time, to prevent the odor/taste gas emitted from the dry sludge from being enriched in the dry sludge bin 300. Thus, the dried sludge can be efficiently transported by the dry sludge conveying device 200, and the phenomenon that the operation of a sludge treatment system is influenced due to the accumulation of the dry sludge at the discharge end of the sludge drying device 100 is avoided; meanwhile, the temperature reduction device 400 is used for carrying out temperature reduction treatment on the dry sludge in the transferring process, so that the dry sludge is kept at a lower temperature in a state of lower water content, and the process that a spraying system for temperature reduction is configured in the dry sludge bin 300 in the traditional sludge treatment process and the temperature of the dry sludge is reduced by spraying water is avoided.

In one example, the dry mud conveying apparatus 200 is a scraper conveyor or a screw conveyor. For example, and without limitation, the dry mud conveyor 200 is a scraper conveyor.

In one possible embodiment, the sludge treatment system further includes a first detecting member 600 disposed in the dry sludge bin 300, the first detecting member 600 being electrically connected to the first fan 500, the first detecting member 600 being configured to detect a temperature of the dry sludge in the dry sludge bin 300.

In this embodiment, the specific configuration of the sludge treatment system is further optimized. Specifically, the sludge treatment system is configured to include at least a combined member of the sludge drying apparatus 100, the dry sludge transporting apparatus 200, the dry sludge bin 300, the cooling apparatus 400, the first fan 500, and the first detecting element 600 is configured at the middle lower portion of the dry sludge bin 300, and is configured to detect the temperature of the dry sludge. Meanwhile, when the first detecting member 600 detects that the temperature of the dry sludge in the dry sludge bin 300 is greater than 70 ℃, the first detecting member 600 is connected with the first fan 500, and the operation frequency of the first fan 500 is increased, so that the temperature of the dry sludge in the dry sludge bin 300 is reduced by increasing the air exchanging amount, and the risk of smoldering/smoldering caused by overhigh temperature of the inner space of the dry sludge bin 300 is avoided.

In one example, the first sensing element 600 is a temperature sensor.

In one possible embodiment, the sludge treatment system further includes a second detecting member 700 disposed in the dry sludge bin 300, the second detecting member 700 being electrically connected to the first fan 500, the second detecting member 700 being configured to detect the concentration of the combustible gas in the dry sludge bin 300.

In this embodiment, the specific configuration of the sludge treatment system is further optimized. Specifically, the sludge treatment system is configured to include at least a combination of the sludge drying apparatus 100, the dry sludge transporting apparatus 200, the dry sludge hopper 300, the cooling apparatus 400, the first fan 500, and the second detecting member 700 is configured in an upper space of the dry sludge hopper 300 for detecting a concentration of the combustible gas in an environment within the dry sludge hopper 300. Meanwhile, when the second detecting member 700 detects that the concentration of the combustible gas in the dry sludge bin 300 is too high, the second detecting member 700 is connected with the first fan 500, and the operating frequency of the first fan 500 is increased, so that the out-of-standard combustible gas is sent out of the dry sludge bin 300, and meanwhile, the concentration of the combustible gas in the dry sludge bin 300 is diluted by fresh air, and serious safety accidents such as explosion and fire are avoided.

In one example, the second sensing member 700 is a combustible gas detection sensor.

In one possible embodiment, the sludge treatment system further includes a flame retardant gas providing device 800, the flame retardant gas providing device 800 being in communication with the dry sludge silo 300, the second detecting member 700 being electrically connected to the flame retardant gas providing device 800.

In this embodiment, the specific configuration of the sludge treatment system is further optimized. Specifically, the sludge treatment system is configured to include at least a combination of a sludge drying apparatus 100, a dry sludge transporting apparatus 200, a dry sludge hopper 300, a cooling apparatus 400, a first fan 500, a second detecting member 700, and a flame retardant gas providing apparatus 800, the flame retardant gas providing apparatus 800 being in communication with the dry sludge hopper 300 for providing a flame retardant gas to the dry sludge hopper 300. Meanwhile, the second detecting member 700 is coupled to the flame retardant gas providing device 800, and when the second detecting member 700 detects that the concentration of the combustible gas in the dry sludge bin 300 is too high, the flame retardant gas providing device 800 is coupled to the flame retardant gas providing device 800 and the flame retardant gas delivery amount of the flame retardant gas providing device 800 is instantaneously increased to rapidly dilute the concentration of the combustible gas in the dry sludge bin 300.

In one example, the flame retardant gas supply device 800 may supply an inert gas such as nitrogen, argon, or the like. For example, but not limited to, the flame retardant gas providing device 800 is a nitrogen generating device for providing nitrogen to the dry sludge hopper 300.

In an example, the flame retardant gas supply device 800 operates normally at 30Nm ³ /h～50Nm ³ The delivery amount/h provides the dry sludge silo 300 with a flame retardant gas. And when the second detecting member 700 detects that the concentration of the combustible gas in the dry sludge hopper 300 is too high, the flame retardant gas providing device 800 is controlled to be 60Nm ³ /h～100Nm ³ The delivery amount/h provides the dry sludge silo 300 with a flame retardant gas to rapidly dilute the combustible gas concentration. In addition, a second detectionThe member 700 is also configured in conjunction with the first fan 500, and may also increase the fan frequency of the first fan 500, thereby increasing the ventilation to dilute the combustible gas concentration.

In one possible embodiment, the sludge treatment system further comprises an arch breaking device 900, the arch breaking device 900 being provided at the bottom of the dry sludge silo 300.

In this embodiment, the specific configuration of the sludge treatment system is further optimized. Specifically, the sludge treatment system is configured to at least comprise a sludge drying device 100, a dry sludge conveying device 200, a dry sludge bin 300, a cooling device 400 and an arch breaking device 900, wherein the arch breaking device 900 is configured at the bottom of the dry sludge bin 300 and is used for stirring/turning dry sludge at the bottom of the dry sludge bin 300, so that the dry sludge at the bottom is prevented from being accumulated and compacted under the self gravity action of the dry sludge at the upper part, and the subsequent discharging is prevented from being influenced.

In one possible embodiment, the cooling device 400 includes a cold source 410 and a liquid pipe assembly 420, wherein a liquid inlet of the liquid pipe assembly 420 is communicated with an outlet of the cold source 410, a liquid outlet of the liquid pipe assembly 420 is communicated with an inlet of the cold source 410, and at least part of the liquid pipe assembly 420 is wound around the dry mud conveying device 200.

In this embodiment, the specific configuration of the cooling device 400 is optimized. Specifically, the cooling device 400 is configured as a liquid-cooled cooling device 400 including at least a heat sink 410 and a liquid tube assembly 420. The cold source 410 may be a refrigerant, supercooled water, or the like, and the liquid pipe assembly 420 is wound around the outside of the dry sludge transfer apparatus 200 to cool the high-temperature dry sludge in the dry sludge transfer apparatus 200. The liquid pipe assembly 420 may be disposed at the bottom or the middle lower portion of the dry mud conveying apparatus 200 by a serpentine travel, or may be spirally wound on the outer wall of the dry mud conveying apparatus 200.

In an example, the waste heat displaced by the cooling device 400 can also be used as a heat source of the sludge drying device 100 to heat, dehydrate and dry wet sludge. Therefore, the cyclic utilization of heat energy is realized, and the energy is saved.

In one possible implementation, the sludge drying device 100 includes a feeding component 110, a sludge drying machine 120 and a heat source 130, the feeding component 110 is disposed at a feeding end of the sludge drying machine 120, and the dry sludge conveying device is disposed at a discharging end of the sludge drying machine 120; the heat source 130 is used to heat and dry the wet sludge in the sludge dryer 120.

In this embodiment, the specific configuration of the sludge drying apparatus 100 is optimized. Specifically, the sludge drying apparatus 100 is configured to include at least a combination of a feed assembly 110, a sludge dryer 120, and a heat source 130, wherein the sludge dryer 120 is disposed between the feed assembly 110 and a dry sludge transfer device, and is configured to dehydrate and dry wet sludge so that the wet sludge having a water content of 80% or more is dried by the sludge dryer 120, and the dry sludge having a water content of 30% to 40% is obtained at a discharge end of the sludge dryer 120. The heat source 130 is used to provide heat to the sludge dryer 120 to ensure smooth dewatering of wet sludge.

In one example, the feed assembly 110 may be a conveyor belt that transports wet sludge material or a wet sludge transfer vehicle that transports material.

In an example, the sludge dryer 120 is any one of a disc dryer, a paddle dryer, a hollow screw dryer, a steam rotary dryer, a drum dryer, or a flash dryer. For example, but not limited to, the sludge dryer 120 is a hollow screw dryer.

In one example, the heat source 130 may be electrical heat energy, steam heat energy, flue gas heat energy, conduction oil heat energy, or other waste heat energy. For example, but not limited to, the heat source 130 is steam heat energy.

In one possible embodiment, the sludge drying apparatus 100 further includes a dust removing assembly 140, and the dust removing assembly 140 is disposed at the discharge end of the sludge dryer 120.

In this embodiment, the specific configuration of the sludge drying apparatus 100 is further optimized. Specifically, the sludge drying device 100 is configured to at least comprise a combination component of a feeding component 110, a sludge drying machine 120, a heat source 130 and a dust removing component 140, wherein the dust removing component 140 is used for removing dust from high-temperature exhaust steam coming out of the sludge drying machine 120 through an exhaust port, so that dust pollution of surrounding environment is reduced.

In one possible embodiment, the dust removing assembly 140 includes a dust remover 141 and a second fan 142, the dust remover 141 is disposed at a discharge end of the sludge drier 120, and the second fan 142 is disposed at the discharge end of the dust remover 141.

In this embodiment, the specific configuration of the dust removing assembly 140 is optimized. Specifically, the dust removing assembly 140 is configured to at least comprise a combined component of a dust remover 141 and a second fan 142, the dust remover 141 is of a dust removing cloth bag type structure, and the second fan 142 is used for sucking high-temperature exhaust steam in the sludge drying machine 120, so that the high-temperature exhaust steam is discharged into the surrounding environment after dust removal treatment by the dust remover 141.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A sludge treatment system, comprising:

the sludge drying device is used for removing water in the wet sludge;

the dry sludge conveying device is arranged at the discharge end of the sludge drying device;

the dry mud bin is arranged at the discharge end of the dry mud conveying device;

the cooling device is arranged at the outer side of the dry sludge conveying device and used for reducing the temperature of the dry sludge on the dry sludge conveying device; and

the first fan is arranged on the dry mud bin and is used for ventilating the dry mud bin.

2. The sludge treatment system of claim 1 further comprising a first detection member disposed within the dry sludge hopper, the first detection member being electrically coupled to the first fan, the first detection member being configured to detect a temperature of the dry sludge within the dry sludge hopper.

3. The sludge treatment system of claim 1 further comprising a second detection member disposed within the dry sludge hopper, the second detection member being electrically connected to the first fan, the second detection member being configured to detect a concentration of combustible gas within the dry sludge hopper.

4. A sludge treatment system as claimed in claim 3, further comprising a fire retardant gas providing means in communication with the dry sludge hopper, the second detection member being electrically connected to the fire retardant gas providing means.

5. The sludge treatment system of claim 1 further comprising an arch breaking device disposed at a bottom of the dry sludge bin.

6. The sludge treatment system of claim 1, wherein the cooling device comprises a cold source and a liquid pipe assembly, a liquid inlet of the liquid pipe assembly is communicated with an outlet of the cold source, a liquid outlet of the liquid pipe assembly is communicated with an inlet of the cold source, and at least part of the liquid pipe assembly is wound around the dry sludge conveying device.

7. The sludge treatment system of claim 1, wherein the sludge drying device comprises a feeding component, a sludge dryer and a heat source, the feeding component is arranged at a feeding end of the sludge dryer, and the dry sludge conveying device is arranged at a discharging end of the sludge dryer; the heat source is used for heating and drying wet sludge in the sludge dryer.

8. The sludge treatment system of claim 7, wherein the sludge drying apparatus further comprises a dust removal assembly disposed at a discharge end of the sludge dryer.

9. The sludge treatment system of claim 8, wherein the dust removal assembly comprises a dust remover and a second fan, the dust remover is disposed at a discharge end of the sludge drier, and the second fan is disposed at a discharge end of the dust remover.