CN214148668U

CN214148668U - Sludge dryer

Info

Publication number: CN214148668U
Application number: CN202022870039.2U
Authority: CN
Inventors: 谷少博; 白婧
Original assignee: Hebei Yingzhuo Environmental Protection Technology Co ltd
Current assignee: Hebei Yingzhuo Environmental Protection Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-07
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a sludge dryer, which belongs to the field of environmental protection equipment and comprises a shell, wherein a feed inlet and a discharge outlet are arranged on the shell, a pair of hollow-structure rotating shafts are arranged along the length direction of the shell in a penetrating way, stirring blades are arranged on the rotating shafts and synchronously and reversely rotate under the action of a driving device, one end part of each rotating shaft is provided with a steam inlet, the other end part of each rotating shaft is a sealing structure, the shell is of a hollow structure, a steam conduction port is arranged on the side wall of each rotating shaft, which is positioned in the hollow structure of the shell, and a steam outlet is arranged on the outer wall of the shell; the outer edge of the stirring blade is made of an elastic material and is in contact with the inner wall of the housing. The utility model discloses a sludge drying machine is difficult for taking place to harden, adhere the phenomenon to dry evenly, abundant, high-efficient, the heat loss is low, long service life, and convenient to use is applicable to all sludge that need dry.

Description

Sludge dryer

Technical Field

The utility model belongs to the environmental protection equipment field, specifically speaking are sludge drying machines.

Background

Sludge is a byproduct produced in the processes of sewage treatment, waste treatment, garbage treatment and the like. The sludge has complex components, mainly contains about 90-95% of water, and other organic substances, various trace elements, pathogenic microorganisms, parasitic eggs, heavy metals and the like which can cause adverse effects on the environment, and can be recycled, so special recycling treatment needs to be carried out on the sludge. Before the recovery treatment, the sludge is dried to remove the water contained in the sludge and reduce the volume and weight.

In the related art, a sludge dryer is used to dry sludge. Steam type sludge drying machine mainly includes the casing and runs through the cavity pivot of casing, is equipped with stirring paddle leaf in the pivot, pours mud into the casing intracavity by the feed inlet on the casing during use, lets in steam in with the pivot and heats the pivot, and the pivot after the heating can play the effect of drying to mud, gets rid of the moisture that contains in the mud, and the mud of stoving completion is discharged by the discharge gate on the casing.

Because the mud is progressively dried under the rotatory propulsion of stirring paddle leaf, consequently take place the inside moist of mud piece surface drying easily in the drying process to and adhere, the phenomenon that hardens, not only influence the stoving effect, still increased the loss to equipment. In addition, because the steam only heats the rotating shaft, the steam circulation circuit is short, the heat of the steam cannot be fully utilized, the heat loss is high, the energy consumption is high, uneven drying is easy to cause, and the drying effect is influenced.

SUMMERY OF THE UTILITY MODEL

For solving exist among the prior art more not enough, the utility model aims at providing a sludge drying machine to reach and improve and adhere, harden, make to dry more evenly, and reduce the purpose of loss.

In order to achieve the above object, the utility model adopts the following technical scheme: a sludge dryer comprises a shell, wherein a feed inlet and a discharge outlet are formed in the shell, a pair of rotating shafts with hollow structures penetrate through the length direction of the shell, stirring blades are arranged on the rotating shafts and synchronously and reversely rotate under the action of a driving device, one end part of each rotating shaft is provided with a steam inlet, the other end part of each rotating shaft is provided with a sealing structure, the shell is of a hollow structure, a steam conduction port is formed in the side wall, located in the hollow structure of the shell, of each rotating shaft, and a steam outlet is formed in the outer wall of the shell; the outer edge of the stirring blade is made of an elastic material and is in contact with the inner wall of the housing.

As to the utility model limit: the rotating shaft comprises an outer wall with a hollow structure and a separating pipe sleeved in the outer wall, the separating pipe divides the hollow structure of the rotating shaft into an inner layer and an outer layer, a first communicating hole for communicating the inner layer with the outer layer is formed in the separating pipe, the outer wall of the rotating shaft is arranged in the shell, the separating pipe extends out of the end part of the outer wall of the rotating shaft and penetrates through the shell, and the steam conducting port is formed in the separating pipe.

As to the utility model limit: stirring paddle leaf is the heliciform and coils in the pivot, just two epaxial stirring paddle leaf of changeing staggers the setting in proper order.

As to the utility model limit: the driving device comprises a first motor, a gear is arranged at the output end of the first motor, gears are also arranged at the end parts of the two rotating shafts, and the first motor drives the two rotating shafts to rotate synchronously and reversely through gear transmission.

As to the utility model limit: the tip intercommunication of feed inlet is provided with the feeding body, is provided with in the feeding body to be used for the inspiratory suction device of mud.

As a further limitation to the present invention: the steam conducting port is arranged at one end of the separating pipe far away from the steam inlet.

As a further limitation to the present invention: the suction device comprises a packing auger arranged inside the feeding pipe body.

As to the utility model discloses a further limit again: the stirring paddle is of a hollow structure, and a second communicating hole used for communicating the stirring paddle with the outer layer is formed in the position, corresponding to the stirring paddle, on the outer wall of the rotating shaft.

As to the utility model discloses a further limit again: the packing auger is driven by a second motor, and the second motor is arranged at one end of the feeding pipe body close to the feeding hole.

As a further limitation to the present invention: the stirring paddle comprises a metal layer with a hollow structure, and an elastic material layer is coated outside the metal layer.

Since the technical scheme is used, compared with the prior art, the utility model, the beneficial effect who gains lies in:

(1) the utility model discloses a be provided with a pair of contra-rotating's pivot in the casing, can extrude, pulverize the mud piece in the rotatory in-process of pivot, stirring paddle's outer fringe is made by elastic material and contacts with the inner wall of casing, make stirring paddle's edge contact with the casing inner wall in the motion process, not only can make stirring paddle and inner wall produce the extrusion effect to mud, prevent to harden, the stirring paddle outer fringe that has elasticity can also play the striking off effect to the mud that adheres to on the inner wall in the in-process that contacts with the inner wall, the phenomenon of having improved adhesion inner wall, the loss to equipment has been reduced, life has been prolonged; in addition, steam for heating enters the hollow structure of the shell through the steam conduction port after passing through the rotating shaft, so that the shell is heated by the steam, the steam exhausted from the rotating shaft is utilized, the heat loss is reduced, and the heating is more sufficient and uniform;

(2) the utility model discloses a be equipped with the partition tube in the pivot, can divide into inlayer and skin with the hollow structure of pivot, the skin is because being closer to mud, therefore the temperature is lower, and the inlayer is because keeping away from mud, therefore can keep at higher temperature, the utility model discloses a steam conduction mouth sets up on the partition tube, only makes the inlayer steam of higher temperature let in the casing, makes the casing obtain better effect of heating under the condition that does not influence pivot skin temperature;

(3) the paddle of the utility model is of a hollow structure and is communicated with the outer layer, when steam for heating is introduced into the outer layer, the paddle can also be heated to a certain extent, so that the sludge is heated more fully, and the drying efficiency is improved; the stirring paddle comprises a metal layer and an elastic material layer coated outside the metal layer, the metal layer can ensure the hardness and the heat conductivity of the paddle, and the elastic material layer can ensure that the stirring paddle is in elastic contact with the inner wall of the shell and does not damage the inner wall of the shell;

(4) the utility model discloses the tip intercommunication of feed inlet is provided with the feeding body, and the inside of feeding body is provided with suction device, and the feeding body can be sucked the mud that is less than the feed inlet, with prior art in need with mud rising back pour into by the feed inlet compare, it is more convenient to use.

To sum up, the utility model discloses a sludge drying machine is difficult for taking place to harden, adhere the phenomenon to dry evenly, abundant, high-efficient, the heat loss is low, long service life, and convenient to use is applicable to all sludge that need dry.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of an internal structure of a rotating shaft according to an embodiment of the present invention;

fig. 3 is the internal structure schematic diagram of the stirring paddle blade in the embodiment of the present invention.

In the figure: 1-shell, 2-feed inlet, 3-discharge outlet, 4-rotating shaft, 41-outer wall, 42-separating tube, 5-stirring blade, 51-metal layer, 52-elastic material layer, 6-steam inlet, 7-steam conducting port, 8-steam outlet, 9-inner layer, 10-outer layer, 11-first communicating hole, 12-second communicating hole, 13-first motor, 14-first gear, 15-second gear, 16-third gear, 17-feed tube body, 18-auger and 19-second motor.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the sludge dryer described herein is a preferred embodiment, and is for the purpose of illustration and explanation only, and is not to be construed as a limitation of the present invention.

The present invention relates to a bearing phrase or a positional relationship such as "up", "down", "left", "right", etc., which is based on the bearing relationships of fig. 1 to fig. 3 of the drawings of the present invention, and is only for convenience of description of the present invention and for simplification of description, and is not a specific bearing, a specific bearing structure and operation which a device or an element indicating or implicit must have, and therefore cannot be understood as a limitation to the protection of the present invention.

Embodiment a sludge dryer

The embodiment is shown in fig. 1 to 3, and is a sludge dryer, which includes a casing 1, a feeding port 2 and a discharging port 3 are provided on the casing 1, a pair of rotating shafts 4 are provided along the length direction of the casing 1, and stirring blades 5 are provided on the rotating shafts 4, and rotate synchronously and reversely under the action of a driving device.

The rotating shaft 4 is provided to penetrate the housing 1 along the longitudinal direction of the housing 1, and the rotating shaft 4 has a hollow structure. In order to heat the sludge, steam needs to be introduced into the rotating shaft 4 to heat the rotating shaft 4. In this embodiment, the left end portions of the two rotating shafts 4 are both provided with the steam inlets 6, and of course, the steam inlets 6 of the two rotating shafts 4 may also be connected to be combined into one steam inlet. In order to make full use of the steam, the right end of the rotating shaft 4 is a sealing structure, the housing 1 is a hollow structure, a steam conduction port 7 is arranged on the side wall of the rotating shaft 4 located in the hollow structure of the housing 1, as shown in fig. 1, the arrow direction in the figure is the flow direction of the steam, after the steam enters the rotating shaft 4 from the steam inlet 6, the steam flows into the hollow structure of the housing 1 through the steam conduction port 7 of the rotating shaft 4 to heat the housing 1, and correspondingly, a steam outlet 8 is arranged on the outer wall 41 of the housing 1. In order to heat the casing 1 more fully, the steam conducting port 7 is arranged at one end of the rotating shaft 4 far away from the steam inlet 6, and the steam outlet 8 is arranged at one end of the casing 1 far away from the steam conducting port 7. Thus, the sludge entering from the feeding hole 2 can be uniformly heated under the action of the heated rotating shaft 4 and the shell 1, and the effect of accelerating the evaporation of water is achieved.

Further, in order to make the heat utilization more sufficient and reasonable, the rotating shaft 4 comprises a cylindrical outer wall 41 with a hollow structure and a separating pipe 42 sleeved in the outer wall 41 and extending from the end of the outer wall 41, the separating pipe 42 divides the hollow structure of the rotating shaft 4 into an inner layer 9 and an outer layer 10, the separating pipe 42 is provided with a first through hole 11 for communicating the inner layer 9 and the outer layer 10, the outer wall 41 is arranged in the shell 1, and the separating pipe 42 extends from the end of the outer wall 41 and penetrates through the shell 1. Accordingly, the steam conduction port 7 is provided on the partition pipe 42 of the rotation shaft 4. So set up, outer 10 is because being closer to mud, therefore the temperature is lower, and inlayer 9 is because keeping away from mud, consequently can maintain higher temperature, only makes the inlayer 9 steam of higher temperature let in casing 1, makes casing 1 obtain better effect of heating under the condition that does not influence the outer 10 temperature of pivot 4. The end of the outer wall 41 in this embodiment is a sealed structure, but it is also possible to communicate the end of the outer wall 41 with the outside to form a passage for discharging steam as needed, so that the steam in the outer layer 10 is directly discharged to the outside.

Be provided with stirring paddle 5 in pivot 4, stirring paddle 5 is the heliciform and coils on the outer wall 41 of pivot 4, and two epaxial stirring paddle 5 of pivot 4 stagger the setting in proper order. So set up, can guarantee that the paddle when stirring mud impels mud by feed inlet 2 to discharge gate 3, paddle interact on two pivot 4 also can produce the extrusion to cubic mud to a certain extent, pulverizes cubic mud, guarantees the stoving effect.

The stirring blade 5 is a hollow structure and comprises a hollow metal layer 51 and an elastic material layer 52 coated outside the metal layer 51, namely, the outer edge of the stirring blade 5 is made of an elastic material, and the elastic material can be selected from rubber or thermoplastic elastomer. The size of the stirring blade 5 is matched with the inner wall of the shell 1, so that when the stirring blade 5 rotates along with the rotating shaft 4, the outer edge made of elastic materials is contacted with the inner wall of the shell 1. So set up, can not only make stirring paddle 5 and inner wall produce the extrusion to mud, prevent to harden, have the in-process that elastic stirring paddle 5 outer fringe and inner wall contacted and can also play the effect of striking off to adnexed mud on the inner wall, improved the phenomenon of adhesion inner wall, reduced the loss to equipment, prolonged life.

In order to heat the sludge more fully, the second communication hole 12 for communicating the stirring blade 5 with the outer layer 10 is formed in the outer wall 41 of the rotating shaft 4 and corresponds to the stirring blade 5, steam in the outer layer 10 can enter the hollow structure of the blade through the second communication hole 12, the hollow structure of the blade is made of metal, the hardness of the blade is guaranteed, the heat conducting performance is good, and the sludge is heated more fully.

The rotation of the rotating shaft 4 is driven by a driving device. The driving device comprises a first motor 13, a first gear 14 is arranged at the output end of the first motor 13, and a second gear 15 and a third gear 16 are respectively arranged at the end parts of the two rotating shafts 4. The first motor 13 drives the two rotating shafts 4 to synchronously and reversely move through gear transmission.

Since the feed port 2 is usually disposed at one end of the casing 1 far from the ground, the sludge needs to be transported to a position higher than the feed port 2 and then poured from the feed port 2, which is inconvenient to use. Therefore, a feeding pipe body 17 is provided in communication with the end of the feeding port 2, the feeding pipe body 17 has a hollow pipe structure provided obliquely to the ground, and a suction device for sucking sludge is provided in the feeding pipe body 17, so that the feeding can be started by inserting the lower end of the feeding pipe body 17 into the sludge during feeding. In this embodiment, the suction device comprises a screw 18 disposed inside the feeding pipe 17, and the screw is driven by a second motor 19 disposed on a side of the feeding pipe 17 close to the feeding port 2. Of course, the suction device can be a pump instead of the auger 18.

When the sludge drying device is used, steam is introduced into the rotating shafts 4 through the steam inlet 6, the rotating shafts 4 and the shell 1 are preheated, after preheating is completed, the second motor 19 is started, the packing auger 18 rotates, sludge is sucked to the feeding hole 2, the sludge enters the shell 1 through the feeding hole 2, the first motor 13 is started, the two rotating shafts 4 start to rotate, the sludge is stirred, conveyed and dried, and the dried sludge is discharged through the discharging hole 3.

Claims

1. The utility model provides a sludge drying machine, includes the casing, be provided with feed inlet and discharge gate on the casing, run through the pivot that is provided with a pair of hollow structure along casing length direction, be provided with stirring paddle leaf in the pivot to under drive arrangement's effect synchronous, reverse rotation, its characterized in that: one end of the rotating shaft is provided with a steam inlet, the other end of the rotating shaft is a sealing structure, the shell is of a hollow structure, the side wall of the rotating shaft, which is positioned in the hollow structure of the shell, is provided with a steam conduction port, and the outer wall of the shell is provided with a steam outlet; the outer edge of the stirring blade is made of an elastic material and is in contact with the inner wall of the housing.

2. The sludge dryer as claimed in claim 1, wherein: the rotating shaft comprises an outer wall with a hollow structure and a separating pipe sleeved in the outer wall, the separating pipe divides the hollow structure of the rotating shaft into an inner layer and an outer layer, a first communicating hole for communicating the inner layer with the outer layer is formed in the separating pipe, the outer wall of the rotating shaft is arranged in the shell, the separating pipe extends out of the end part of the outer wall of the rotating shaft and penetrates through the shell, and the steam conducting port is formed in the separating pipe.

3. The sludge dryer as claimed in claim 2, wherein: the steam conducting port is arranged at one end of the separating pipe far away from the steam inlet.

4. The sludge dryer as claimed in claim 3, wherein: the stirring paddle is of a hollow structure, and a second communicating hole used for communicating the stirring paddle with the outer layer is formed in the position, corresponding to the stirring paddle, on the outer wall of the rotating shaft.

5. The sludge dryer according to claim 4, wherein: the stirring paddle comprises a metal layer with a hollow structure, and an elastic material layer is coated outside the metal layer.

6. The sludge dryer as claimed in claim 1, wherein: stirring paddle leaf is the heliciform and coils in the pivot, and two epaxial stirring paddle leaf of changeing staggers the setting in proper order.

7. The sludge dryer as claimed in claim 1, wherein: the driving device comprises a first motor, a gear is arranged at the output end of the first motor, a gear is arranged at the end part of the rotating shaft, and the first motor drives the two rotating shafts to rotate synchronously and reversely through gear transmission.

8. The sludge dryer according to any one of claims 1 to 7, wherein: the tip intercommunication of feed inlet is provided with the feeding body, is provided with in the feeding body to be used for the inspiratory suction device of mud.

9. The sludge dryer as claimed in claim 8, wherein: the suction device comprises a packing auger arranged inside the feeding pipe body.

10. The sludge dryer as claimed in claim 9, wherein: the packing auger is driven by a second motor, and the second motor is arranged at one end of the feeding pipe body close to the feeding hole.