CN116730040A

CN116730040A - Material conveying equipment

Info

Publication number: CN116730040A
Application number: CN202311016544.2A
Authority: CN
Inventors: 孙明明; 常少英; 李晓金; 赵继磊; 葛金林; 袁奋云; 贾思浩
Original assignee: Guoneng Longyuan Environmental Protection Co Ltd
Current assignee: Guoneng Longyuan Environmental Protection Co Ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2023-09-12

Abstract

The application relates to the technical field of sludge conveying and discloses material conveying equipment. The material conveying equipment comprises arch breaking equipment, a conveying device and a feed hopper, wherein the feed hopper is arranged at the feed end of the conveying device, so that materials are introduced into the conveying device, the arch breaking device is arranged in the feed hopper and comprises two arch breaking shafts which are rotatably arranged in the feed hopper, feeding channels through which the materials can pass are respectively formed between the two arch breaking shafts and the inner wall of the feed hopper, and the two arch breaking shafts are independently driven. When the material conveying equipment provided by the application is used, arch breaking can be performed through rotation of the arch breaking shafts, and the two arch breaking shafts are relatively independent, so that the arch breaking requirements of various conditions are met, the material can be conveyed normally, the arch breaking device is simple in structure, extra space occupation can not be increased, and further the space occupation of the material conveying equipment is reduced.

Description

Material conveying equipment

Technical Field

The application relates to the technical field of sludge conveying, in particular to material conveying equipment.

Background

Screw conveyors are classified into a shaft screw conveyor and a shaftless screw conveyor in conveying form, and are classified into a U-type screw conveyor and a tubular screw conveyor in appearance. The screw conveyor with shaft is suitable for non-sticky dry powder materials and small particle materials (such as cement, fly ash, lime, grain and the like). While shaftless screw conveyors are suitable for conveyors made of sticky and easily entangled materials (e.g., sludge, biomass, refuse, etc.). The working principle of the screw conveyor is that the rotating screw blade pushes the material to carry out screw conveying, wherein the force for preventing the material from rotating together with the screw conveyor blade is the weight of the material and the friction resistance of the screw conveyor shell to the material.

When the existing screw conveyor conveys materials with relatively high viscosity such as sludge, the materials are conveyed in a form of a bottom laying screw or a sliding frame without adopting a direct conveying screw. The device mainly comprises two conveying modes according to the differences of the sludge bin and the conveying device, wherein one conveying mode is a conveying mode of the sludge bin, the bottom laying spiral and the conveying spiral system, and the other conveying mode is a conveying mode of the sludge bin, the sliding frame, the transferring spiral and the conveying spiral system.

The whole system consists of a sludge bin, a bottom laying screw and a conveying screw, wherein the bottom laying screw and the conveying screw are formed by parallel arrangement of a plurality of screws in a conveying mode of the sludge bin, the bottom laying screw and the conveying screw. The bottom laying screw is fully laid at the bottom of the whole sludge bin, and the conveying screw is arranged at the bottom of the bottom laying screw. When the device works, the bottom laying screw rotates, the semi-dry sludge in the sludge bin is activated and transported to the lower-stage conveying screw, and the semi-dry sludge is sent to the subsequent sludge treatment and disposal system by the conveying screw. In the conveying screw system with the design mode, sludge is easy to adhere in a sludge hopper to form a bridge so as to cause interruption or blockage of feeding; the laying spiral and the conveying spiral are required to be arranged in an upper-lower two-stage mode, the axial direction is vertical, and the equipment is required to be large in upper-lower space and occupied area.

Under the conveying mode of sludge bin + balladeur train + transport spiral + conveying screw system, whole system includes the sludge bin, sets up the balladeur train in the sludge bin bottom, sets up the transport spiral in the sludge bin bottom, sets up the conveying spiral in the transport spiral bottom. When the device works, the sliding frame at the bottom of the sludge bin reciprocates to activate the semi-dry sludge, the activated semi-dry sludge falls into the transfer screw arranged at the bottom of the sludge bin under the action of gravity, and the sludge is conveyed to a subsequent sludge treatment and disposal system through the transfer screw and the transfer screw. In the conveying screw system with the design mode, a hydraulic station is required to be arranged on the carriage, the number of equipment in the system is large, and the system is complex; the transfer screw and the conveying screw are required to be arranged in an upper-lower two-stage mode, the axial direction is vertical, and the equipment is required to be large in upper-lower space and occupied area.

Disclosure of Invention

The application provides material conveying equipment for solving the problems of complex structure, large occupied space, and unsmooth conveying caused by bridging and arching of a feeding port of a conventional sludge storage and conveying system.

The application provides material conveying equipment, which comprises a conveying device, a feed hopper and an arch breaking device, wherein the feed hopper is arranged at the feed end of the conveying device so as to introduce materials into the conveying device, the arch breaking device comprises two arch breaking shafts which are rotatably arranged in the feed hopper, feed channels through which the materials can pass are respectively formed between the two arch breaking shafts and between the arch breaking shafts and the inner wall of the feed hopper, and the two arch breaking shafts are independently driven.

Optionally, a feeding port is arranged at the feeding end of the conveying device, and the feeding port is opposite to the feeding channel between the two arch breaking shafts in the vertical direction.

Optionally, the material conveying device further comprises a first driving assembly and a second driving assembly which are respectively used for driving the two arch breaking shafts to rotate.

Optionally, the driving directions of the first driving component and the second driving component are the same or opposite.

Optionally, the operating frequencies of the first drive assembly and the second drive assembly are the same or different.

Optionally, the arch breaking shaft comprises a rotating shaft and a stirring plate arranged on the periphery of the rotating shaft.

Optionally, the material stirring plate extends along a fold shape, so that the material stirring plate is in a clip shape.

Optionally, the inner side wall of the feed hopper is a smooth wall extending in the vertical direction.

Optionally, the side wall and the bottom wall of the feeding hopper are in arc transition.

Optionally, a first protection layer is arranged on the inner wall of the feeding hopper.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

according to the material conveying equipment provided by the application, the arch breaking device is arranged in the feed hopper, the normal conveying of materials is not influenced by the arch breaking device, when the material conveying equipment is used, the materials can enter the conveying device through the feed channel so as to convey the materials through the conveying device, when the materials are arched or have an arching trend, the arch breaking can be carried out through the rotation of the arch breaking shafts, the two arch breaking shafts are relatively independent, so that the arch breaking requirements of various conditions are met, the materials can be conveyed normally, the arch breaking device is simple in structure, extra space occupation is not increased, and the space occupation of the material conveying equipment is further reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a front view of a material handling apparatus according to an embodiment of the present application;

FIG. 2 is a top view of a material conveying apparatus according to an embodiment of the present application;

fig. 3 is a right side view of the material conveying apparatus according to the embodiment of the present application.

Description of the reference numerals

1. A conveying device; 11. a conveying housing; 12. a helical blade; 13. a screw driving motor; 2. a feed hopper; 21. a feed channel; 22. a sidewall; 23. a bottom wall; 3. an arch breaking device; 31. breaking an arch shaft; 311. a rotating shaft; 312. a kick-out plate; 32. a first drive assembly; 33. a second drive assembly; 4. and a material level switch.

Detailed Description

In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be made. The embodiments of the present application and the features in the embodiments may be combined with each other without collision.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced otherwise than as described herein; it is apparent that the embodiments in the specification are only some embodiments of the present application, but not all embodiments.

As shown in fig. 1 to 3, the material conveying apparatus provided by the embodiment of the application includes a conveying device 1, a feed hopper 2 and an arch breaking device 3, the feed hopper 2 is disposed at a feed end of the conveying device 1 to introduce material into the conveying device 1, wherein the feed hopper 2 has a material inlet, and the material inlet faces upward for introducing the material, a bottom of the feed hopper 2 is communicated with a feed inlet of the conveying device 1, so that the material can enter the conveying device 1 through the feed inlet, and the conveying device 1 can convey the material introduced into the conveying device to a specified position.

The arch breaking device 3 comprises two arch breaking shafts 31 rotatably arranged in the feed hopper 2, a feeding channel 21 through which materials can pass is formed between the two arch breaking shafts 31 and between the arch breaking shafts 31 and the inner wall of the feed hopper 2, and the conveying device 1 is arranged at the tail end of the feed hopper 2 and below the arch breaking device 3. The material can enter through the feeding channel 21 between the two arch breaking shafts 31, and can also enter through the feeding channel 21 between the arch breaking shafts 31 and the side wall 22 of the feed hopper 2, and in the arch breaking process, the arch breaking shafts 31 can drive the material to move towards the feeding channel 21 formed between the arch breaking shafts 31 and the inner wall of the feed hopper 2, so that the material has a larger moving space, and the arch breaking effect of the material is ensured. The two arch breaking shafts 31 are independently driven, so that the two arch breaking shafts 31 are used in any cooperation according to the arch breaking requirement, the two arch breaking shafts 31 are mutually standby, the phenomenon that an arch cannot be broken due to the fact that a single arch breaking shaft 31 is damaged is avoided, and the conveying efficiency of materials is ensured. Wherein, broken arch shaft 31 can adopt materials such as carbon steel to make, ensures structural strength and life, and two broken arch shafts 31 each other do not contact at the rotation in-process to avoid scraping between the broken arch shaft 31 to bump the phenomenon emergence that causes broken arch shaft 31 to damage.

According to the material conveying equipment provided by the application, the arch breaking device 3 is arranged in the feed hopper 2, the arch breaking device 3 does not influence the normal conveying of materials, when the material conveying equipment is used, the materials can enter the conveying device 1 through the feed channel 21 so as to be conveyed through the conveying device 1, when the materials are arched or have an arching trend, the arch breaking can be carried out through the rotation of the arch breaking shafts 31, the two arch breaking shafts 31 are relatively independent, so that the arch breaking requirements of various conditions are met, the materials can be conveyed normally, the arch breaking device 3 is simple in structure, the additional space occupation is not increased, and the space occupation of the material conveying equipment is further reduced. The material conveying equipment with the design mode is suitable for viscous materials such as sludge and the like.

As shown in fig. 2, the feed end of the conveyor 1 is provided with a feed opening which is located opposite to the feed channel 21 between the two arch-breaking shafts 31 in the vertical direction. Namely, two arch breaking shafts 31 are respectively arranged above the feed inlet of the conveying device 1 in an inclined manner so as to avoid influencing the material entering into the conveying device 1 through the feed hopper 2, so that the arch breaking device 3 can be arranged to break arch on one hand, and on the other hand, in the material discharging process, the arch breaking shafts 31 do not support the material so as to avoid the problem of material accumulation and material blockage.

In some embodiments, the arch breaking shaft 31 has an operation end, and the operation end of the arch breaking shaft 31 extends out of the feeding hopper 2, and a worker can drive the arch breaking shaft 31 to rotate by holding the operation end, so as to realize the arch breaking process of the material. Under this kind of design mode, the staff can independently control the rotation condition of broken arch shaft 31 to make the rotation of broken arch shaft 31 satisfy the broken arch demand of material, increase the convenience of operation.

In other embodiments, the material conveying apparatus further comprises a first drive assembly 32 and a second drive assembly 33 for driving the rotation of the two arch-breaking shafts 31, respectively. This kind of design mode can realize automated control to can provide sufficient driving force for broken arch shaft 31 through first drive assembly 32 and second drive assembly 33, ensure that broken arch shaft 31 can rotate in order to realize broken arch, and reduce the manual work participation, reduce the cost of labor.

Wherein the first drive assembly 32 and the second drive assembly 33 may each comprise a drive motor. Alternatively, the first and second drive assemblies 32 and 33 may each include variable frequency drive motors and speed reducers to enable a change in drive speed and drive direction, making the design and installation of the first and second drive assemblies 32 and 33 more flexible.

In some embodiments, the first drive assembly 32 and the second drive assembly 33 may operate intermittently in response to arching bridging of the material. When the material is smoothly discharged, the first driving assembly 32 and the second driving assembly 33 can not act, so that the electricity consumption is saved. Whether the material is smoothly discharged or not can be judged by the material level switch 4, and the material level switch 4 judges the material discharging state in a conventional technology, so that the material level switch is not described in detail herein.

The driving directions of the first driving component 32 and the second driving component 33 are the same or opposite, and can be selected according to the blanking states of the materials so as to meet the arch breaking requirements of different blanking states.

In some embodiments, the driving direction of the first driving assembly 32 and the second driving assembly 33 is the same. When the material level switch 4 detects that the material on two sides is unevenly discharged, the first driving assembly 32 and the second driving assembly 33 can drive the two arch breaking shafts 31 to rotate in the same direction, so that the material is pulled to one side with less material discharging, uniform material discharging is ensured, and further the uniformity of conveying of the subsequent materials is ensured.

In other embodiments, the first drive assembly 32 and the second drive assembly 33 are driven in opposite directions. When the material level switch 4 detects that the material on two sides is not smooth in discharging, and the conveying device 1 is less in discharging, the first driving assembly 32 and the second driving assembly 33 can drive the two arch breaking shafts 31 to reversely rotate so as to dial the material towards the middle, and the smoothness of discharging is ensured.

In addition, the working frequencies of the first driving component 32 and the second driving component 33 are the same or different, and the first driving component and the second driving component can be selected according to the blanking states of materials so as to meet the arch breaking requirements of different blanking states.

In some embodiments, the operating frequencies of the first drive assembly 32 and the second drive assembly 33 are the same, such that the two arch-breaking shafts 31 rotate in synchronization. Specifically, when the material level switch 4 detects that the material discharging conditions on both sides are the same, the first driving assembly 32 and the second driving assembly 33 can rotate synchronously.

In other embodiments, the operating frequencies of the first drive assembly 32 and the second drive assembly 33 are different such that the two arch-breaking shafts 31 are rotated alternately. Specifically, when the material level switch 4 detects that one side of the material is blocked, the first driving assembly 32 and the second driving assembly 33 can alternately rotate, so as to realize unblocking of the one side of the material.

In addition, the arch breaking device 3 of the present application further includes a controller and the above-mentioned material level switch 4, where the material level switch 4 is used to observe the material discharging condition and feed back the material discharging condition to the controller, and the controller sends out a corresponding working signal according to the information fed back by the material level switch 4, so that the first driving component 32 and the second driving component 33 can perform corresponding actions, thereby meeting the arch breaking requirement. Specifically, when the material level switch 4 detects that the material is arched, an arch breaking signal is fed back to the controller, and the controller sends out an arch breaking command after receiving the arch breaking signal, so that the first driving assembly 32 and the second driving assembly 33 can perform corresponding operations according to the arch breaking situation. Or when the material level switch 4 detects that the material has the arch-forming trend, an arch-forming signal is fed back to the controller, and the controller sends an arch-forming command after receiving the arch-forming signal, so that the first driving assembly 32 and the second driving assembly 33 can perform corresponding operations according to the arch-forming condition. The arching trend of the material feeding device means that the material feeding is not smooth, so that the material has a trend of gradual accumulation.

Under the design mode, the two arch breaking shafts 31 can operate in a mutually matched mode according to the sludge arch-forming bridging condition, and can adopt an intermittent or continuous operation mode according to the site conditions such as sludge viscosity and the like so as to meet the sludge arch breaking requirements under different states.

The arch breaking shaft 31 comprises a rotating shaft 311 and a stirring plate 312 arranged on the periphery of the rotating shaft 311, and the rotating shaft 311 drives the stirring plate 312, so that the stirring plate 312 stirs materials to break arches of the materials.

In some embodiments, the two rotating shafts 311 of the two arch breaking shafts 31 are arranged in parallel, the material stirring plates are in a plate-shaped structure, a plurality of material stirring plates are arranged on each rotating shaft 311, and the plurality of material stirring plates are arranged at intervals and are alternately distributed along two sides of the rotating shaft, so that the material stirring effect is ensured. In addition, the two rotating shafts 311 are not interfered with each other in the rotating process, so as to avoid influencing the arch breaking effect.

In other embodiments, as shown in connection with fig. 1 and 2, the deflector plate 312 extends in a fold such that the deflector plate 312 is clip-shaped. Specifically, the kick-out plate 312 has two parts, one part of the kick-out plate 312 is protruded toward one side with respect to the axis of the rotation shaft 311, and the other part of the kick-out plate 312 is protruded toward the other side of the rotation shaft 311 with respect to the axis of the rotation shaft 311, so that the two protruded parts are respectively located at both sides of the rotation shaft 311. The broken arch shaft 31 of this kind of design mode can realize the broken arch of great scope with less weight, simple structure, and weight is little, can satisfy broken arch demand simultaneously, and broken arch shaft 31 is at the rotation in-process, can cut the material that arches to the continuity of material is destroyed briefly, and then can make the material broken arch smoothly, and enters into conveyor 1 under self gravity effect in, guarantees broken arch effect. The protruding portion of the arch breaking shaft 31 should be always located at one side of the feeding port of the conveying device 1 in the vertical direction during the rotation process, so as to avoid affecting the normal discharging of the material.

As shown in fig. 3, the inner side wall of the feeding hopper 2 is a smooth wall extending along the vertical direction, so that the material is prevented from adhering to the inner side wall of the feeding hopper 2. It will be appreciated that the shape of the entire side wall 22 is not limited, as long as it is ensured that the inner side wall of the feed hopper 2 is planar.

As shown in fig. 3, the side wall 22 and the bottom wall 23 of the feed hopper 2 are curved in transition to facilitate the entry of material into the conveyor 1. Specifically, the feeder hopper 2 has a plurality of lateral walls 22 and diapire 23, and all arc transition between diapire 23 and the a plurality of lateral walls 22, and the material export setting of feeder hopper 2 is on diapire 23 to make the material enter into behind the feeder hopper 2, can directly enter into conveyor 1 from the material export, and after the material piles up in feeder hopper 2, the material will slide to diapire 23 along the arcwall face, and then in the conveyor 1, ensures the conveying effect of material.

The inner wall of the feed hopper 2 of the application is provided with a first protective layer. The feeding hopper 2 can be supported by carbon steel or other materials, and the first protective layer can be a lining polytetrafluoroethylene plate, a PP (polypropylene) plate, a high polymer Polyethylene (PE) plate and the like, and can be selected according to the type of sludge. The first protective layer can prevent the inner wall of the feed hopper 2 from being corroded, and meanwhile, the abrasion of the inner wall of the feed hopper 2 is avoided, and the service life of the feed hopper 2 is ensured.

The conveying device 1 of the application comprises a conveying shell 11 and a spiral blade 12 rotatably arranged in the conveying shell 11, wherein a spiral driving motor 13 for driving the spiral blade 12 to rotate is arranged at the end part of the conveying shell 11. Wherein, the helical blade 12 is made of carbon steel or other materials, and the biaxial or shaftless screw is selected according to the site conditions such as site conveying distance, sludge property and the like, and the conveying distance of the helical blade 12 can reach 10m at maximum. The spiral driving motor 13 adopts a variable frequency motor to adjust the discharge amount of the materials.

Further preferably, the inner wall of the conveying housing 11 is provided with a second protective layer, wherein the second protective layer may be a polytetrafluoroethylene lining plate, a PP (polypropylene) plate, a high polymer Polyethylene (PE) plate, etc., and may be selected according to the type of sludge. The second protective layer can prevent the inner wall of the conveying casing 11 from being corroded, and at the same time, avoid abrasion of the inner wall of the conveying casing 11, and ensure the service life of the conveying casing 11.

The material conveying equipment of this kind of design mode is at normal operating time, the material enters into the inside of feeder hopper 2 through the material import of feeder hopper 2, the feed inlet of rethread conveying casing 11 enters into in the conveying casing 11, helical blade 12 is with the material of feed inlet department outward, when the arch-forming bridging of feed inlet position department, the material of accessible arch-forming bridge is broken to arch-forming bridge's material activation, arch-forming bridge material is collapsed after being broken the arch, rely on gravity effect to get into conveying casing 11 and carry towards the discharge gate through helical blade 12, in order to transport to the assigned position.

The material inlet of the conventional feed hopper 2 is used for ensuring normal material conveying, and the material inlet is ensured to be more than 2 m. By adopting the material conveying equipment, the arch of the material can be effectively prevented by the cooperation of the two arch breaking shafts 31, so that the width of the material inlet of the feeding hopper 2 can be reduced to 1-1.5m, and the material bin (10 m ³ ) Is required for blanking.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. 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 application. Thus, the present application is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a material conveying equipment, its characterized in that includes conveyor (1), feeder hopper (2) and broken hunch device (3), feeder hopper (2) set up conveyor (1)'s feed end, with introduce the material in conveyor (1), broken hunch device (3) are including setting up with rotatable mode two broken hunch axle (31) in feeder hopper (2), two between broken hunch axle (31) and broken hunch axle (31) with be formed with respectively between the inner wall of feeder hopper (2) feed channel (21) that can supply the material to pass, two between broken hunch axle (31).

2. A material conveying apparatus according to claim 1, characterized in that the feed end of the conveying device (1) is provided with a feed opening, which is opposite to the position of the feed channel (21) between the two arch-breaking shafts (31) in the vertical direction.

3. The material conveying apparatus according to claim 1, further comprising a first drive assembly (32) and a second drive assembly (33) for driving the rotation of the two crushing shafts (31), respectively.

4. A material conveying apparatus according to claim 3, characterized in that the driving directions of the first driving assembly (32) and the second driving assembly (33) are the same or opposite.

5. A material conveying apparatus according to claim 3, characterized in that the operating frequencies of the first drive assembly (32) and the second drive assembly (33) are the same or different.

6. The material conveying apparatus according to claim 1, wherein the arch breaking shaft (31) comprises a rotating shaft (311) and a deflector plate (312) arranged at the periphery of the rotating shaft (311).

7. The material conveying apparatus as claimed in claim 6, wherein the deflector (312) extends in a fold-like manner such that the deflector (312) is clip-like.

8. The material conveying apparatus according to claim 1, characterized in that the inner side wall of the feed hopper (2) is a smooth wall extending in a vertical direction.

9. The material conveying apparatus according to claim 1, characterized in that the arc-shaped transition between the side wall (22) and the bottom wall (23) of the feed hopper (2).

10. The material conveying apparatus according to claim 1, characterized in that the inner wall of the feed hopper (2) is provided with a first protective layer.