CN112777911A

CN112777911A - Sludge drying equipment

Info

Publication number: CN112777911A
Application number: CN202011507000.2A
Authority: CN
Inventors: 项乐群; 李秀朝; 纪伟勇; 吴天炳; 蓝丽梅
Original assignee: Zhejiang Sanlian Environment Machinery Equipment Co ltd
Current assignee: Zhejiang Sanlian Environment Machinery Equipment Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-05-11
Anticipated expiration: 2040-12-18
Also published as: CN112777911B

Abstract

The invention discloses sludge drying equipment which comprises a machine base, wherein a drying rotary drum is transversely arranged on the machine base, the drying rotary drum comprises an air inlet end and an air outlet end, the air inlet end is provided with a material inlet, an inner rotary shaft penetrates through the drying rotary drum, a plurality of stirring and pushing rods are arranged on the inner rotary shaft, the stirring and pushing rods are distributed along the length direction of the inner rotary shaft of the rotary shaft, and a wind shield is arranged at one end, close to the air outlet end, of the inner rotary shaft. Can stop the hot flue gas that gets into from the air inlet end through the deep bead for the air current that arrives the end of giving vent to anger returns and gets into the mummification rotary drum, and the rotation of pivot forms the torrent in the mummification rotary drum in the cooperation, effectively promotes sludge drying equipment's mummification efficiency, extension equipment life.

Description

Sludge drying equipment

Technical Field

The invention relates to the technical field of sludge treatment, in particular to sludge drying equipment.

Background

With the large-scale construction of modern sewage treatment plants, the sludge yield is growing dramatically. The water content of the sludge is high (generally 98%), the water content is still more than 80% after dehydration, and the sludge is not easy to treat, and if the sludge is not properly treated and disposed, secondary pollution to the surrounding environment of a stacking area is caused. The rational treatment of sludge is a necessary requirement for maintaining the beautiful environment around us and protecting the health of us. Anaerobic digestion, high-temperature composting, incineration and landfill are the most common methods for sludge treatment and disposal, but the sludge with high water content is directly used for composting and landfill and is easy to cause new environmental pollution, and the sludge incineration treatment needs to be firstly dehydrated and dried or added with combustion auxiliary materials. Therefore, various sludge treatment methods generally require drying sludge in advance to reduce the water content of the sludge.

The traditional process for reducing the water content of the sludge is to carry out drying treatment on the sludge by adopting drying equipment at the high temperature of 200-700 ℃, and primary energy sources such as coal, oil, natural gas and the like are required to be consumed; in the drying process of the sludge, along with the reduction of the water content of the sludge, when the water content is reduced to about 60 percent, the sludge is in a cementation stage, and is easy to agglomerate, so that particles which are hard in surface, difficult to crush and still have thin mud inside are formed, and the water is difficult to remove; meanwhile, the sludge in the cementation stage is easy to adhere to the equipment, so that the drying efficiency is reduced, and the service life of the equipment is shortened; the problem of caking is a problem which has to be considered in the sludge drying process.

For example, a sludge crushing type drying device disclosed in chinese patent document, whose publication number "CN 105084707B" includes a horizontal drying main cylinder, a frame for positioning the drying main cylinder, and a rotor spindle, one end of the drying main cylinder is provided with a feeding end, the other end is provided with a discharging end, the drying main cylinder can rotate relative to the feeding end and the discharging end, the top of the feeding end is provided with a hot smoke inlet, the top of the discharging end is provided with a wet smoke outlet, the rotor spindle is located inside the drying main cylinder, the frame is provided with a bearing seat for positioning the rotor spindle, the frame is provided with a spindle driving motor capable of driving the rotor spindle to rotate and a main cylinder driving motor capable of driving the drying main cylinder to rotate, the rotation directions of the rotor spindle and the drying main cylinder are opposite, and the rotor spindle is provided with a plurality of stirring push rods. The device carries out sludge crushing by matching the rotor main shaft with the drying main barrel, but the flow velocity of hot flue gas in the device in the drying main barrel is higher, and sludge particles which are not crushed are carried to leave the drying main barrel, so that the discharge end is easy to block.

Disclosure of Invention

Aiming at the problems that the flow velocity of hot flue gas is high in the sludge crushing process and wet sludge particles which are not crushed are carried to block the discharge end in the prior art, the invention provides the sludge drying equipment.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a sludge drying equipment, includes the frame, the mummification rotary drum is violently put on the frame, the mummification rotary drum includes air inlet end and air-out end, the air inlet end is provided with the material import, run through in the mummification rotary drum and be provided with interior pivot, be provided with a plurality of stirring pushing ram in the interior pivot, stirring pushing ram distributes along pivot adversion length direction, the one end that the adversion is close to the air-out end is provided with the deep bead. The sludge drying equipment disclosed by the invention is a direct drying mode by burning high-temperature hot flue gas, does not need conversion of a heat exchanger waste heat boiler, saves equipment investment and reduces engineering technical standards. The heat source for drying is exhaust hot air which enters from the air inlet end and is recycled in large quantity, the oxygen content is low, the dried materials are not easy to oxidize, and the quality of finished products is good. After the sludge enters the drying rotary drum from the material inlet, the sludge is broken into boiling particles in the high-speed rotation of the stirring and pushing rod, the specific surface area is quickly changed, the sludge is quickly pushed to move backwards, and the large amount of wet materials are prevented from being accumulated at the front end of the drying rotary drum; and as the drying drum is deeply driven, the water content of the sludge is reduced to 50-60%, the volume is reduced, and a sticky adhesive state begins to be formed. Because the stirring push rod continuously rotates, airflow in the drying rotary drum forms a vortex, hot air collides with the wind shield and returns to the air inlet end at the moment, the vortex is effectively impacted, the airflow in the drying rotary drum becomes a turbulent state, the boiling granular sludge is enabled to perform Brownian motion, fine particles can be bonded with particles with high humidity to reach certain dryness and are separated again by the stirring push rod, and the effect of uniform drying is achieved.

Preferably, the surface of the wind shield is in a water-drop shape and comprises a main plate body and a tip body arranged at the edge of the main plate body, a material stopping groove is arranged on the inner wall of the drying rotary drum corresponding to the wind shield, and the tip body extends into the material stopping groove. The water droplet shape deep bead rotates along with interior pivot, because the tip body can make the air current through the air-out end blocked return the mummification rotary drum in, so along with the rotation of the tip body, the air current is circumference backtracking, and the position that the tip body rotated all can make the air current to the air-in end backward flow, further promotes the brownian motion degree of mud granule. It is worth noting that the tip body can also scrape the sludge material accumulated at the air outlet end away from the inner wall of the drying rotary drum, so that the sludge adhered on the drying rotary drum is prevented from influencing the working efficiency of the sludge drying equipment.

Preferably, a material selecting ring is arranged at a port of the air outlet end of the drying rotary drum, the material selecting ring comprises an upper ring and a lower ring, lifting mechanisms are arranged on the upper ring and the lower ring, a tobacco material channel is arranged between the material selecting ring and the wind shield, and the tobacco material channel is annular. The material selecting ring is matched with the wind shield to form a discharge channel of smoke and sludge particles, namely a smoke channel. The technical staff adjusts the position of fitting with a contraceptive ring and lower ring through elevating system is adjustable, and then adjusts discharge passage's width to this moisture content and the particle size that obtains the mummification product of ideal, only reach certain particle size and moisture content requirement, just can get into the cigarette material passageway and discharge.

Preferably, a blocking and supporting structure is arranged between the machine base and the drying rotary drum, the blocking and supporting structure comprises a joint sleeve sleeved on the drying rotary drum and a supporting platform arranged at the bottom of the joint sleeve, and the supporting platform is connected with the machine base. The blocking and supporting structure is used for supporting the drying rotary drum, so that the drying rotary drum is suspended on the machine base and is convenient to rotate, and large transverse displacement in operation is prevented.

Preferably, the machine base is further provided with a drum driving mechanism, the drum driving mechanism comprises a driving chain arranged around the drying drum, and the drum driving mechanism can drive the drying drum to rotate.

Further, a spiral material coiling plate is arranged on the inner wall of the drying rotary drum, and the spiral direction of the spiral material coiling plate is opposite to the rotating direction of the inner rotating shaft. The rotary drum driving mechanism rotates the drying rotary drum through the driving chain. Spiral flitch is the helix and distributes in the mummification rotary drum, the mud granule in the mummification rotary drum advances along with the air current, and the granule that is not conform to the specification can't leave the mummification rotary drum and pile up in mummification rotary drum air-out end bottom, continuously rotate because of the mummification rotary drum this moment, and the direction of spiral flitch is opposite with the direction of rotation of interior pivot, this makes the mud that falls to mummification rotary drum air-out end bottom slide to the air inlet end along the coil stock board along the rotation of mummification rotary drum, and spiral flitch is along with the rotation of mummification rotary drum, the mud that will be located the below originally is copied and is played the top motion that inclines, remove to mummification rotary drum middle section simultaneously, with this realization to piling up the returning formula of the mud material of air-out end department and shift.

Preferably, the air inlet end is provided with an air inlet chamber communicated with the drying rotary drum, the material inlet is formed in the bottom of the air inlet chamber, the air outlet end is provided with an air outlet chamber communicated with the drying rotary drum, and the bottom of the air outlet chamber is provided with an inner rotary shaft driving assembly. The air inlet chamber is used for enabling high-temperature air with the temperature of 600-700 ℃ to enter the drying rotary drum to be in contact with the vaporous high-humidity sludge, so that the sludge material is dried quickly, and the drying effect is effectively improved. And the air outlet chamber is gradually changed into cold flue gas at the temperature of 150-200 ℃ for storage, so that the cold flue gas is discharged from the air outlet end. The inner rotary drive assembly comprises a drive motor, so that the inner rotary shaft continuously rotates directionally.

Preferably, a crushing rod is arranged on the stirring and propelling rod on one side of the inner rotating shaft close to the air inlet end, and the crushing rod is parallel to the inner rotating shaft. The crushing rod is stirred in the drying rotary drum along with the rotation of the stirring pushing rod, the crushing effect of the inner rotary shaft on sludge materials is effectively increased, and large sludge which enters the drying rotary drum at first is rapidly crushed to ensure that subsequent drying work is smoothly carried out.

Preferably, the drying drum is provided with a lifting plate on the inner wall, the lifting plate is parallel to the inner rotating shaft and is an arc-shaped plate. The lifting plate can lift the materials from the bottom of the drying drum to a high position for sliding and throwing, so that the sludge materials are conveniently crushed and dried; the lifting plate can be adjusted in angle, disassembled and replaced.

Preferably, one end of the drying rotary drum, which is close to the material inlet, is provided with a hot air guide plate, and the hot air guide plate is provided with an air guide hole. The air guide holes are regularly distributed along the radial direction of the circular surface of the hot air guide plate; the hot air guide plate can be disassembled and replaced. The arrangement ensures that the hot air is dispersed more scientifically and reasonably, and the heat is transferred to the sludge material more efficiently and quickly, so that the drying efficiency is improved; and the gas after the sludge is mixed by the hot air can be rapidly cooled and quenched in a very short time, so that the condition of generating dioxin again is avoided. Under the action of hot air, the sludge moves forward in a Brownian motion mode in the drying rotary drum, fine particles can be bonded with particles with high humidity to reach certain dryness and then are separated again, the uniform drying effect is achieved, and the fine particles slowly move to a material outlet when reaching certain dryness. And finally, the dried material is discharged from a dried material port at the bottom of the drying device, so that the effect of uniform drying is achieved.

Therefore, the invention has the following beneficial effects: (1) hot flue gas entering from the air inlet end can be blocked by the wind shield, so that air flow reaching the air outlet end returns to enter the drying rotary drum, and forms turbulence in the drying rotary drum by matching with the rotation of the inner rotary shaft, thereby effectively improving the drying efficiency of the sludge drying equipment and prolonging the service life of the equipment; (2) the spiral coil plate lifts sludge originally positioned below to move obliquely upwards along with the rotation of the drying rotary drum and simultaneously moves towards the middle section of the drying rotary drum, so that the sludge materials accumulated at the air outlet end are returned and transferred, and the transferred sludge materials participate in the drying and crushing process of the middle section of the drying rotary drum again; (3) along with the rotation of the tip body, the airflow is traced back in the circumferential direction, and the airflow can flow back to the air inlet end at the position where the tip body rotates, so that the Brownian motion degree of sludge particles is further improved; (4) the tip body can also scrape away the sludge material who piles up at the air-out end from the mummification rotary drum inner wall, avoids the mud that bonds on the mummification rotary drum to influence the work efficiency of sludge drying equipment.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a schematic structural view of the inner cavity of the drying drum in fig. 1.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

In the figure: 100-machine base, 110-blocking structure, 120-joint sleeve, 130-pallet, 200-spiral material coiling plate, 101-material inlet, 102-drying material port, 103-air inlet end, 104-air outlet end, 1-drying rotary drum, 2-inner rotary shaft, 3-stirring propelling rod, 31-crushing rod, 4-material stopping groove, 5-material selecting ring, 51-upper ring, 52-lower ring, 53-lifting mechanism, 6-rotary drum driving mechanism, 61-driving chain, 7-lifting plate, 8-wind shield, 81-tip body, 82-main plate body, 9-inner rotary shaft driving component, 10-hot air guide plate and 11-wind guide hole.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

As shown in fig. 1 and 2, a sludge drying apparatus comprises a base 100, a drying drum 1 is transversely arranged on the base, the drying drum comprises an air inlet end 103 and an air outlet end 104, the air inlet end is provided with a material inlet 101, an inner rotating shaft 2 is arranged in the drying drum in a penetrating manner, a plurality of stirring push rods 3 are arranged on the inner rotating shaft, the stirring push rods are distributed along the length direction of the rotating shaft, and a wind shield 8 is arranged at one end of the inner rotating shaft close to the air outlet end. The sludge drying equipment disclosed by the invention is a direct drying mode by burning high-temperature hot flue gas, does not need conversion of a heat exchanger waste heat boiler, saves equipment investment and reduces engineering technical standards. The heat source for drying is exhaust hot air which enters from the air inlet end and is recycled in large quantity, the oxygen content is low, the dried materials are not easy to oxidize, and the quality of finished products is good. After the sludge enters the drying rotary drum from the material inlet, the sludge is broken into boiling particles in the high-speed rotation of the stirring and pushing rod, the specific surface area is quickly changed, the sludge is quickly pushed to move backwards, and the large amount of wet materials are prevented from being accumulated at the front end of the drying rotary drum; and as the drying drum is deeply driven, the water content of the sludge is reduced to 50-60%, the volume is reduced, and a sticky adhesive state begins to be formed. Because the stirring push rod continuously rotates, airflow in the drying rotary drum forms a vortex, hot air collides with the wind shield and returns to the air inlet end at the moment, the vortex is effectively impacted, the airflow in the drying rotary drum becomes a turbulent state, the boiling granular sludge is enabled to perform Brownian motion, fine particles can be bonded with particles with high humidity to reach certain dryness and are separated again by the stirring push rod, and the effect of uniform drying is achieved.

The deep bead face is the drop shape, including the mainboard body with set up in the tip body 81 at mainboard body 82 edge, it is provided with only silo 4 to correspond the deep bead on the mummification rotary drum inner wall, the tip body stretches into only in the silo. The water droplet shape deep bead rotates along with interior pivot, because the tip body can make the air current through the air-out end blocked return the mummification rotary drum in, so along with the rotation of the tip body, the air current is circumference backtracking, and the position that the tip body rotated all can make the air current to the air-in end backward flow, further promotes the brownian motion degree of mud granule. It is worth noting that the tip body can also scrape the sludge material accumulated at the air outlet end away from the inner wall of the drying rotary drum, so that the sludge adhered on the drying rotary drum is prevented from influencing the working efficiency of the sludge drying equipment.

As shown in fig. 4, a material selecting ring is arranged at a port of an air outlet end of the drying drum, the material selecting ring 5 comprises an upper ring 51 and a lower ring 52, lifting mechanisms 53 are arranged on the upper ring and the lower ring, a tobacco material channel is arranged between the material selecting ring and the wind shield, and the tobacco material channel is annular. The material selecting ring is matched with the wind shield to form a discharge channel of smoke and sludge particles, namely a smoke channel. The technical staff adjusts the position of fitting with a contraceptive ring and lower ring through elevating system is adjustable, and then adjusts discharge passage's width to this moisture content and the particle size that obtains the mummification product of ideal, only reach certain particle size and moisture content requirement, just can get into the cigarette material passageway and discharge.

As shown in fig. 3, a retaining structure 110 is disposed between the machine base and the drying drum, the retaining structure includes a joint sleeve 120 sleeved on the drying drum and a pallet 130 disposed at the bottom of the joint sleeve, and the pallet is connected to the machine base. Still be provided with rotary drum actuating mechanism 6 on the frame, rotary drum actuating mechanism is including the driving chain 61 that encircles the setting of mummification rotary drum, rotary drum actuating mechanism can drive the mummification rotary drum and rotate. Further, a spiral material coiling plate 200 is arranged on the inner wall of the drying rotary drum, and the spiral direction of the spiral material coiling plate is opposite to the rotating direction of the inner rotating shaft. The blocking and supporting structure is used for supporting the drying rotary drum, so that the drying rotary drum is suspended on the machine base and is convenient to rotate, and large transverse displacement in operation is prevented. The rotary drum driving mechanism rotates the drying rotary drum through the driving chain. Spiral flitch is the helix and distributes in the mummification rotary drum, the mud granule in the mummification rotary drum advances along with the air current, and the granule that is not conform to the specification can't leave the mummification rotary drum and pile up in mummification rotary drum air-out end bottom, continuously rotate because of the mummification rotary drum this moment, and the direction of spiral flitch is opposite with the direction of rotation of interior pivot, this makes the mud that falls to mummification rotary drum air-out end bottom slide to the air inlet end along the coil stock board along the rotation of mummification rotary drum, and spiral flitch is along with the rotation of mummification rotary drum, the mud that will be located the below originally is copied and is played the top motion that inclines, remove to mummification rotary drum middle section simultaneously, with this realization to piling up the returning formula of the mud material of air-out end department and shift.

The air inlet end is provided with the inlet chamber of intercommunication mummification rotary drum, the material import sets up in the inlet chamber bottom, the end of giving vent to anger is provided with the room of giving vent to anger that communicates in the mummification rotary drum, it is provided with inner rotary shaft drive assembly 9 to give vent to anger the room bottom. The air inlet chamber is used for enabling high-temperature air with the temperature of 600-700 ℃ to enter the drying rotary drum to be in contact with the vaporous high-humidity sludge, so that the sludge material is dried quickly, and the drying effect is effectively improved. And the air outlet chamber is gradually changed into cold flue gas at the temperature of 150-200 ℃ for storage, so that the cold flue gas is discharged from the air outlet end. The inner rotary drive assembly comprises a drive motor, so that the inner rotary shaft continuously rotates directionally.

Be provided with on the stirring pushing ram that is close to air inlet end one side in the interior pivot and smash stick 31, it sets up to smash the stick and be on a parallel with the interior pivot. The crushing rod is stirred in the drying rotary drum along with the rotation of the stirring pushing rod, the crushing effect of the inner rotary shaft on sludge materials is effectively increased, and large sludge which enters the drying rotary drum at first is rapidly crushed to ensure that subsequent drying work is smoothly carried out.

Be provided with lifting plate 7 on the mummification rotary drum inner wall, lifting plate is on a parallel with the inner rotary shaft setting, lifting plate is the arc. The lifting plate can lift the materials from the bottom of the drying drum to a high position for sliding and throwing, so that the sludge materials are conveniently crushed and dried; the lifting plate can be adjusted in angle, disassembled and replaced.

One end of the drying rotary drum, which is close to the material inlet, is provided with a hot air guide plate 10, and the hot air guide plate is provided with an air guide hole 11. The air guide holes are regularly distributed along the radial direction of the circular surface of the hot air guide plate; the hot air guide plate can be disassembled and replaced. The arrangement ensures that the hot air is dispersed more scientifically and reasonably, and the heat is transferred to the sludge material more efficiently and quickly, so that the drying efficiency is improved; and the gas after the sludge is mixed by the hot air can be rapidly cooled and quenched in a very short time, so that the condition of generating dioxin again is avoided. Under the action of hot air, the sludge moves forward in a Brownian motion mode in the drying rotary drum, fine particles can be bonded with particles with high humidity to reach certain dryness and then are separated again, the uniform drying effect is achieved, and the fine particles slowly move to a material outlet when reaching certain dryness. And finally, the dried material is discharged from a dried material port 102 at the bottom of the drying device, so that the effect of uniform drying is achieved.

In this embodiment, wet sludge material is lifted from the bottom to the top of the drying drum by the lifting plate disposed in the drying drum while entering the drying drum through the material inlet. When falling from the top, the sludge is crushed and pushed by the stirring and pushing rod rotating at high speed and the crushing rod on the stirring and pushing rod, and the sludge is repeatedly stirred and fully contacted with high-temperature hot air to evaporate and dry the water. During the propelling process of the sludge, large materials are crushed into small blocks with wet surfaces, the small blocks are contacted with hot air, and the small blocks are rapidly propelled to the middle and rear sections of the drying rotary drum through the stirring and propelling rod. The small materials are crushed into particles by the stirring pushing rod, the moisture content is reduced to 50-60%, the volume is reduced, and a sticky adhesive state begins to be formed. Because the stirring push rod continuously rotates, airflow in the drying rotary drum forms a vortex, hot air collides with the wind shield and returns to the air inlet end at the moment, the vortex is effectively impacted, the airflow in the drying rotary drum becomes a turbulent state, the boiling granular sludge is enabled to perform Brownian motion, fine particles can be bonded with particles with high humidity to reach certain dryness and are separated again by the stirring push rod, and the effect of uniform drying is achieved. And the granule that arrives the air-out end but is not conform to the specification can't leave the mummification rotary drum and just piles up in mummification rotary drum air-out end bottom, continues to rotate because of the mummification rotary drum this moment, because the direction of spiral flitch is opposite with the direction of rotation of interior pivot, this makes the mud that falls to mummification rotary drum air-out end bottom remove along the coil stock board to the inlet end along the rotation of mummification rotary drum. The spiral coil stock board is along with the rotation of mummification rotary drum, and the mud that will be located the below originally is copied and is played the motion to the slant top, and mud slides along with gravity to mummification rotary drum middle section nature in the spiral coil stock board of slope backward below to being taken to the high point and falling into the rotation range of stirring pushing ram after, to this realization is to piling up the formula of returning of the mud material of air-out end department and transferring, make these mud materials that are transferred participate in the mummification crushing process in mummification rotary drum middle section once more. In this embodiment, the drum driving mechanism is provided with an external rotation motor, the drying drum rotates in a reciprocating manner under the driving of the external rotation motor, the internal rotation shaft driving assembly is provided with an internal rotation motor connected to the internal rotation shaft, and the internal rotation motor drives the internal rotation shaft and the stirring and pushing rod assembly thereon to keep rotating continuously at a high speed in one direction. The sludge material which meets the preset specification of the material selecting ring is discharged from the smoke material channel and falls into a dry material port on the machine base. And the cold flue gas with reduced temperature and carrying a large amount of water vapor enters the gas outlet chamber from the flue gas channel and enters the subsequent tail gas purification device for treatment.

In addition to the above embodiments, the technical features of the present invention can be re-selected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention which are not described in detail should be regarded as the specific embodiments of the present invention and are within the protection scope of the present invention.

Claims

1. The utility model provides a sludge drying equipment, characterized by, includes the frame, the mummification rotary drum is violently put on the frame, the mummification rotary drum includes air inlet end and air-out end, the air inlet end is provided with the material import, run through being provided with interior pivot in the mummification rotary drum, be provided with a plurality of stirring pushing ram in the interior pivot, stirring pushing ram distributes along pivot adversion length direction, the one end that the adversion is close to the air-out end is provided with the deep bead.

2. The sludge drying equipment as claimed in claim 1, wherein the wind screen is drop-shaped and comprises a main board body and a tip body arranged at the edge of the main board body, the drying drum is provided with a material stopping groove corresponding to the wind screen on the inner wall, and the tip body extends into the material stopping groove.

3. The sludge drying apparatus as claimed in claim 1, wherein a spiral material coiling plate is disposed on the inner wall of the drying drum, and the spiral direction of the spiral material coiling plate is opposite to the rotation direction of the inner rotating shaft.

4. The sludge drying apparatus as claimed in claim 1, wherein a retaining structure is disposed between the machine base and the drying drum, the retaining structure includes a joint sleeve sleeved on the drying drum and a supporting platform disposed at the bottom of the joint sleeve, and the supporting platform is connected to the machine base.

5. The sludge drying apparatus as claimed in claim 1, wherein the air inlet end is provided with an air inlet chamber communicated with the drying drum, the material inlet is arranged at the bottom of the air inlet chamber, the air outlet end is provided with an air outlet chamber communicated with the drying drum, and the bottom of the air outlet chamber is provided with an inner rotating shaft driving assembly.

6. The sludge drying apparatus as claimed in claim 1, wherein the stirring and propelling rod on the inner rotating shaft near the air inlet end is provided with a crushing rod, and the crushing rod is parallel to the inner rotating shaft.

7. The sludge drying apparatus as claimed in claim 1, wherein a lifting plate is disposed on the inner wall of the drying drum, the lifting plate is disposed parallel to the inner rotating shaft, and the lifting plate is an arc-shaped plate.

8. The sludge drying apparatus as claimed in claim 5, wherein a baffle ring is disposed on an inner wall of the drying drum near one end of the material outlet, a discharge guide plate is disposed on the baffle ring, the discharge guide plate is a bent plate, and the discharge plate is bent toward the axis direction of the inner rotating shaft.

9. The sludge drying device according to claim 5, wherein the base is provided with a dried material port, the dried material port is arranged outside the material outlet, and a cold smoke outlet is arranged above the dried material port.

10. The sludge drying apparatus as claimed in claim 1, wherein a hot air guiding plate is disposed at an end of the drying drum close to the material inlet, and the hot air guiding plate is provided with an air guiding hole.