CN219173398U - Single screw conveyer - Google Patents

Abstract

The utility model relates to the technical field of sludge conveying treatment, in particular to a single-screw conveyor, which comprises a conveying pipe, a screw shaft and a power device; the side wall of the conveying pipe is provided with a feed inlet and a discharge outlet with opposite opening directions; the spiral shaft is rotatably arranged in the conveying pipe, a feeding section, a discharging section and a reverse pushing section are sequentially arranged on the spiral shaft, the feeding section is arranged between the feeding port and the discharging port, the discharging section is opposite to the discharging port, the reverse pushing section is arranged between the discharging port and the closed end of the conveying pipe, a forward pushing blade is arranged on the feeding section, and a reverse pushing blade is arranged on the reverse pushing section; the power device drives the screw shaft to rotate in the conveying pipe; the utility model is used for overcoming the defect that sludge is easy to agglomerate and block in the conveying process in the prior art, and can directly crush the sludge cake in the sludge conveying process without additionally providing a crusher, thereby reducing the production cost, reducing the equipment occupation space, preventing the sludge from agglomerating in the conveying process, avoiding the conveying blockage and improving the sludge conveying efficiency.

Description

Single screw conveyer

Technical Field

The utility model relates to the technical field of sludge conveying treatment, in particular to a single screw conveyor.

Background

Urban sludge is the mainstream trend of disposing sludge, and the mud can be pressed through the pressure filter earlier in the handling process, forms the mud cake that the moisture content is 60%, carries to next process and handles, however, because mud cake volume after pressing out and weight are great, if directly carry to next process, on the one hand, the unavoidable equipment that is damaged easily is smashed when falling into conveying equipment, shortens equipment life, increases cost of maintenance, on the other hand still needs to promote conveying equipment's accommodation space, satisfies the loading demand of bulky mud cake for equipment occupation place is big, manufacturing cost is high, consequently need carry out crushing treatment to mud cake before carrying.

The existing crushing treatment mode for mud cakes generally needs to use a crusher, namely the crusher and a conveyor are matched and used simultaneously, but the production cost and the occupied space of equipment are increased, and the mud cakes crushed by the crusher are easy to agglomerate for the second time in the transportation process of the conveyor, so that conveying blockage is caused, and the conveying efficiency is reduced.

Disclosure of Invention

The utility model provides the single-screw conveyor for overcoming the defects that the sludge conveying cost is high and caking and blocking are easy to occur in the conveying process in the prior art, and the single-screw conveyor can directly crush mud cakes in the sludge conveying process without additionally providing a crusher, so that the production cost is reduced, the occupied space of equipment is reduced, meanwhile, caking of the sludge in the conveying process can be prevented, the conveying blockage is avoided, and the sludge conveying efficiency is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme: a single screw conveyor comprises a conveying pipe, a screw shaft and a power device; the side wall of the conveying pipe is provided with a feed inlet and a discharge outlet with opposite opening directions; the screw shaft is rotatably arranged in the conveying pipe, a feeding section, a discharging section and a reverse pushing section are sequentially arranged on the screw shaft, the feeding section is arranged between the feeding port and the discharging port, the discharging section is opposite to the discharging port, the reverse pushing section is arranged between the discharging port and the closed end of the conveying pipe, a forward pushing blade is arranged on the feeding section, and a reverse pushing blade is arranged on the reverse pushing section; the power device drives the screw shaft to rotate in the conveying pipe.

Further, tooth-shaped structures are respectively arranged on the outer circumferential cambered surfaces of the forward pushing blade and the backward pushing blade.

Further, the forward pushing blade comprises a plurality of first spiral sheets and a plurality of second spiral sheets, the rotation directions of the first spiral sheets and the second spiral sheets are the same, and the first spiral sheets and the second spiral sheets are alternately wound on the feeding section along the axial direction of the spiral shaft in sequence.

Further, a notch is arranged at the joint of the first spiral sheet and the second spiral sheet.

Further, the butt joint of the first spiral sheet and the second spiral sheet is overlapped in a staggered mode, each first spiral sheet forms a discontinuous first spiral line, each second spiral sheet forms a discontinuous second spiral line, and the first spiral lines and the second spiral lines are wound in a staggered mode.

Further, a plurality of crushing rods are arranged on the discharging section.

Further, the crushing rod is obliquely arranged on the discharging section.

Further, the feeding port and the discharging port are respectively of a cylindrical structure, and the cylindrical structure is vertically installed with the conveying pipe.

Further, spline sleeves are respectively arranged at two ends of the screw shaft and are used for being connected with the power device and the conveying pipe.

Further, an access hole is formed in the conveying pipe.

Compared with the prior art, the utility model has the following beneficial effects:

when the single-screw conveyor provided by the utility model is used, mud enters the conveying pipe from the feed inlet, the power device drives the screw shaft to rotate, the screw shaft drives the forward pushing blades and the reverse pushing blades to spirally rotate at two sides of the discharge outlet, the mud is pushed to the discharge outlet from the feed inlet while being divided and crushed by the forward pushing blades under the action of the forward pushing blades, and mud which exceeds the discharge outlet and enters the closed end of the conveying channel is reversely pushed to the discharge outlet to be discharged under the action of the reverse pushing blades, so that the accumulation of mud at the end of the shaft is prevented, the conveying blockage is avoided, and the conveying efficiency is improved;

according to the utility model, on one hand, the mud can be crushed and conveyed in the conveying process of the mud, the mud is prevented from being coagulated in the conveying process, so that the mud discharged from the discharge hole is crushed and is convenient for subsequent treatment, and on the other hand, the mud can be fully discharged from the discharge hole through the cooperation of the forward pushing blade and the reverse pushing blade, the mud is prevented from being backlogged at the shaft end, the mud is further prevented from being blocked at the discharge hole, the concentrated stress is prevented from being generated on the screw shaft and the blades, the service life of the screw shaft is prolonged, and the conveying efficiency is improved.

Drawings

FIG. 1 is a front view of a single screw shaft conveyor according to the present utility model;

FIG. 2 is a top view of a single screw shaft conveyor according to the present utility model;

FIG. 3 is a schematic structural view of a screw shaft according to the present utility model;

fig. 4 is a front view of the screw shaft in the present utility model.

Reference numerals: 1-a conveying pipe; 2-a discharge hole; 3-a feed inlet; 4-power means; 5-a first flight; 6-a second flight; 7-back pushing the blades; 8-tooth structure; 9-crushing the rod; 10-spline housing; 11-access opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. The utility model is described in one of its examples in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1 to 4, the present embodiment provides a single screw conveyor comprising a conveying pipe 1, a screw shaft and a power device 4; the side wall of the conveying pipe 1 is provided with a feed inlet 3 and a discharge outlet 2 with opposite opening directions; the spiral shaft is rotatably arranged in the conveying pipe 1, a feeding section, a discharging section and a reverse pushing section are sequentially arranged on the spiral shaft, the feeding section is arranged between the feeding port 3 and the discharging port 2, the discharging section is opposite to the discharging port 2, the reverse pushing section is arranged between the discharging port 2 and the closed end of the conveying pipe 1, a forward pushing blade is arranged on the feeding section, and a reverse pushing blade 7 is arranged on the reverse pushing section; the power device 4 drives the screw shaft to rotate in the conveying pipe 1.

It should be noted that, the conveying pipe 1 is used for conveying the pug, and the pug enters into the conveying pipe 1 from the feed inlet 3, and is discharged through the discharge gate 2, wherein, the opening direction of the discharge gate 2 is preferably upwards, is convenient for accept the pug, and the opening direction of the discharge gate 2 is preferably downwards, is convenient for smooth and easy discharge of pug.

The spiral shaft is sequentially provided with a feeding section, a discharging section and a back-pushing section, the feeding section is arranged between the feeding port 3 and the discharging port 2, the discharging section is opposite to the discharging port 2, the back-pushing section is arranged between the discharging port 2 and the closed end of the conveying pipe 1, the feeding section is provided with a forward pushing blade, the back-pushing section is provided with a back-pushing blade 7, specifically, the feeding section is arranged between the feeding port 3 and the discharging port 2 on the conveying pipe 1, the discharging section corresponds to the discharging port 2 on the conveying pipe 1, the back-pushing section is arranged between the discharging port 2 and the closed end of the conveying pipe 1, namely, pug enters the conveying pipe 1 through the feeding port 3 and is discharged out of the conveying pipe 1 through the discharging port 2;

wherein, forward pushing vane sets up on the feed section for when the screw axis rotates, promote the pug that feed inlet 3 department got into to discharge gate 2 discharge, carry out broken stirring to the pug simultaneously at the in-process of carrying, prevent pug caking, reverse pushing vane 7 sets up on the reverse pushing section, and reverse pushing vane 7 and forward pushing vane's the direction of rotation are opposite, be used for avoiding the pug not to discharge through discharge gate 2 and pile up the condition at the conveyer pipe 1 blind end, avoid the accumulation of pug for a long time to cause discharge gate 2 to block up, be equivalent to forward pushing vane and reverse pushing vane 7 to be located the both sides of discharge gate 2 respectively, forward pushing vane is with pug gradually from feed inlet 3 to discharge gate 2, reverse pushing vane 7 then restriction pug surpasses discharge gate 2 and gets into the blind end, can be with the pug reverse pushing back discharge gate 2 that surpasses discharge gate 2, in order to prevent the axle head material backlog.

The power means 4 is used to drive the screw shaft to rotate within the delivery tube 1, wherein the power means 4 may be provided as a drive motor.

When the device is used, mud enters the conveying pipe 1 from the feed inlet 3, the power device 4 drives the screw shaft to rotate, the screw shaft drives the forward pushing blades and the reverse pushing blades 7 to spirally rotate on two sides of the discharge port 2, the mud is divided and crushed by the forward pushing blades under the action of the forward pushing blades and pushed to the discharge port 2 from the feed inlet 3 to be discharged, and the mud exceeding the discharge port 2 and entering the closed end of the conveying channel is reversely pushed to the discharge port 2 to be discharged under the action of the reverse pushing blades 7, so that the accumulation of mud at the shaft end is prevented, the conveying blockage is avoided, and the conveying efficiency is improved.

In the conventional art, the mud is crushed and stirred by means of the crusher, namely, the crusher and the conveyor are matched and used simultaneously, so that the production cost and the occupied space of equipment are increased, and in addition, the mud cake crushed by the crusher is easy to agglomerate for the second time in the transportation process of the conveyor, so that conveying blockage is caused, and the conveying efficiency is reduced.

The single-screw conveyor provided by the utility model can be used for crushing and conveying the pugs in the conveying process of the pugs, so that the pugs discharged from the discharge port 2 are prevented from being coagulated in the conveying process, the pugs are crushed and are convenient for subsequent treatment, and on the other hand, the pugs can be fully discharged from the discharge port 2 through the cooperation of the forward pushing blade and the reverse pushing blade 7, the pugs are prevented from being backlogged at the shaft end, the pugs are further prevented from being blocked at the discharge port 2, the concentrated stress on the screw shaft and the blades is prevented, the service life of the screw shaft is prolonged, and the conveying efficiency is improved.

Correspondingly, the utility model is not only used in the sludge energy treatment industry, but also applicable to the working conditions of conveying and crushing all soft materials similar to other sludge materials.

Further, as shown in fig. 3, in order to reduce the adhesion amount of the pugs on the wall of the conveying pipe 1, tooth-shaped structures 8 are respectively arranged on the outer circumferential cambered surfaces of the forward pushing blades and the backward pushing blades 7, the pugs on the wall surface of the conveying pipe 1 are scraped by the tooth-shaped structures 8, the residue amount of the pugs is reduced, meanwhile, the screw shaft is convenient to flexibly rotate, and the screw shaft is prevented from being blocked by the butt joint of the residual pugs.

Further, as shown in fig. 3, in order to fully crush the pugs and avoid the pugs from coagulating, the forward pushing vane in this embodiment includes a plurality of first spiral slices 5 and a plurality of second spiral slices 6, the first spiral slices 5 and the second spiral slices 6 have the same rotation direction, and the first spiral slices 5 and the second spiral slices 6 are alternately wound on the feeding section along the axial direction of the spiral shaft in turn.

It should be noted that in this embodiment, through setting up the area of contact between two sets of spiral slices increase forward blade and the pug, can carry out abundant breakage to the pug, simultaneously, the spiral direction of first spiral slice 5 is the same with second spiral slice 6, is equivalent to first spiral slice and second spiral slice and has formed the helix on the screw axis, can satisfy the function of pushing the pug to discharge gate 2 from feed inlet 3, can carry out the crushing cutting of multi-angle to the pug again for the pug is broken abundant, reduces the jam that condenses, improves conveying efficiency.

Further, in order to make the stress distribution on the forward pushing vane uniform and avoid stress concentration, in this embodiment, a gap is provided at the butt joint of the first spiral sheet 5 and the second spiral sheet 6.

In this embodiment, the first spiral sheet 5 and the second spiral sheet 6 are not continuous, that is, the first spiral sheet 5 and the second spiral sheet 6 do not form a sealed wrapping and winding in the radial direction of the spiral shaft, but a gap is left between the first spiral sheet 5 and the second spiral sheet, and the gap is used to release a part of the acting force between the pug and the positive pushing blade, so as to avoid stress concentration.

Further, in order to fully crush and cut the pug and avoid the pug from condensing, the butt joint of the first spiral sheet 5 and the second spiral sheet 6 is staggered and overlapped, each first spiral sheet 5 forms a discontinuous first spiral line, each second spiral sheet 6 forms a discontinuous second spiral line, and the first spiral line and the second spiral line are wound in a staggered manner.

It should be noted that, on the traditional conveying shaft, the blades are set to be continuous winding, that is, the blades form a complete continuous spiral line on the conveying shaft, the pug is continuously pushed along the single spiral line, the pug is not fully broken, the pug is easy to be extruded linearly and is easy to be piled up at the shaft end to cause conveying blockage, in this embodiment, the first spiral sheet 5 and the second spiral sheet 6 are preferably arranged in a staggered manner, each adjacent first spiral sheet 5 on the spiral shaft forms a discontinuous first spiral line, each adjacent second spiral sheet 6 on the spiral shaft forms another discontinuous second spiral line, and the first spiral line and the second spiral line are staggered and wound, that is, the peak dislocation arrangement equivalent to the first spiral line and the second spiral line, so that the pug can be cut for many times in the conveying process, the positive pushing blade can fully break the pug, and avoid coagulation blockage.

Further, in order to facilitate processing of the spiral sheet and improve the contact area between the spiral sheet and the pug, and improve the crushing and cutting effects on the pug, in this embodiment, the first spiral sheet 5 and the second spiral sheet 6 are respectively in a belt-shaped structure, and two ends of the belt-shaped structure are both plane ends.

Further, as shown in fig. 1-4, in order to avoid the coagulation of the pug at the discharge opening 2, the discharge section is provided with crushing bars 9.

It should be noted that, when the forward pushing vane and the backward pushing vane 7 push the pug at both sides of the discharge hole 2, the crushed pug may be agglomerated secondarily under the action of the extrusion force, so in this embodiment, a plurality of crushing rods 9 are disposed on the discharge section of the screw shaft, and the crushing rods 9 are distributed along the circumference of the screw shaft and are preferably staggered, so as to be used for beating the pug during the rotation of the screw shaft, and secondarily agglomerating and bridging the crushed pug, so as to ensure that the pug is still in a crushed state after being discharged from the discharge hole 2.

Further, in order to improve the beating ability of the crushing rod 9 to the mud material while avoiding breakage of the crushing rod 9, an angle is preferably formed between the axis of the crushing rod 9 and the axis of the screw shaft in this embodiment.

It should be noted that, in this embodiment, the crushing rod 9 is disposed on the screw shaft in an inclined manner, on the one hand, the contact area between the crushing rod 9 and the pug can be increased due to the inclined arrangement of the crushing rod 9, the pug is convenient to cut into, and the pug is cut in an inclined manner, and meanwhile, the impact force of the pug on the crushing rod 9 can be reduced, so that the crushing rod 9 is not easy to break, on the other hand, the connection area between the crushing rod 9 and the screw shaft is increased due to the inclined arrangement of the crushing rod 9, and the installation stability is improved.

Further, in this embodiment, the acute angle opening between the crushing rod 9 and the screw shaft is preferably oriented towards the feeding section, and it should be noted that, when the acute angle opening between the crushing rod 9 and the screw shaft is oriented towards the feeding section, the crushing rod 9 can block part of mud blocking and accumulating at the shaft end, so as to reduce the situation that the mud is blocked at the discharge port 2, and improve the conveying efficiency.

Further, as shown in fig. 1-4, in this embodiment, in order to facilitate installation and connection of the screw shaft, spline sleeves 10 are respectively disposed at two ends of the screw shaft, and the spline sleeves 10 are used for connection with the power device 4 and the conveying pipe 1.

The spline housing 10 is welded at both ends of the screw shaft, and the spline housing 10 is connected with the power device 4 and the shaft end bearing mechanism, so as to improve the connection stability between the screw shaft and the power device 4 and between the screw shaft and the conveying pipe 1.

Further, in order to improve the mechanical strength and the connection stability of the screw conveyor shaft integrated device, it is preferable that the forward pushing blade, the reverse pushing blade 7, and the crushing rod 9 are welded to the screw shaft as a whole, respectively.

Further, as shown in fig. 1-2, in order to facilitate the entry of the pugs into the conveying pipe 1, in this embodiment, the feed inlet 3 and the discharge outlet 2 are respectively cylindrical structures, and the cylindrical structures are vertically installed with the conveying pipe 1.

Further, as shown in fig. 1-2, in order to facilitate maintenance of the screw shaft in the delivery pipe 1, an access opening 11 is provided in the delivery pipe 1.

Working principle:

according to the single-screw conveyor provided by the utility model, pugs enter the conveying pipe 1 from the feed inlet 3, the power device 4 drives the screw shaft to rotate, the positive pushing blades on the screw shaft enable the pugs to be pushed to the discharge outlet 2, in the pushing process, the pugs are beaten and cracked into fragments by the tooth-shaped structures 8 on the arc surfaces of the peripheries of the blades, the pugs are prevented from being condensed on the wall of the conveying pipe 1, meanwhile, the counter pushing blades 7 on the screw shaft can reversely push the pugs which exceed the discharge outlet 2 and enter the closed end of the conveying pipe 1 to the discharge outlet 2, so that the pugs at the end of the shaft are prevented from being accumulated and blocked, and the pugs at the position of the discharge outlet 2 are beaten by the crushing rod 9 arranged at the position of the discharge outlet 2, so that secondary caking of the pugs is prevented, and the pugs discharged from the discharge outlet 2 are still in a crushed state.

In the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances. In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc., or direct/indirect use in other related technical fields, which are within the spirit and principle of the present utility model, should be included in the scope of the claims of the present utility model.

Claims (10)

1. The single screw conveyor is characterized by comprising a conveying pipe, a screw shaft and a power device;

the side wall of the conveying pipe is provided with a feed inlet and a discharge outlet with opposite opening directions;

the screw shaft is rotatably arranged in the conveying pipe, a feeding section, a discharging section and a reverse pushing section are sequentially arranged on the screw shaft, the feeding section is arranged between the feeding port and the discharging port, the discharging section is opposite to the discharging port, the reverse pushing section is arranged between the discharging port and the closed end of the conveying pipe, a forward pushing blade is arranged on the feeding section, and a reverse pushing blade is arranged on the reverse pushing section;

the power device drives the screw shaft to rotate in the conveying pipe.

2. The single screw conveyor according to claim 1, wherein tooth-shaped structures are respectively arranged on the outer circumferential cambered surfaces of the forward pushing vane and the reverse pushing vane.

3. A single screw conveyor according to claim 2, wherein the forward pushing vane comprises a plurality of first screw flights and a plurality of second screw flights, the first screw flights and the second screw flights have the same direction of rotation, and the first screw flights and the second screw flights are alternately wound on the feeding section in turn along the axial direction of the screw shaft.

4. A single screw conveyor according to claim 3, wherein the first flight and the second flight are notched at their interface.

5. A single screw conveyor as in claim 4 wherein the butt joint of the first and second flights is offset overlapping, each first flight forming an intermittent first helix and each second flight forming an intermittent second helix, the first and second helices being intertwined.

6. A single screw conveyor according to claim 1, characterized in that the discharge section is provided with crushing bars.

7. The single screw conveyor of claim 6, wherein said breaker bar is disposed diagonally to said discharge section.

8. A single screw conveyor according to any one of claims 1-7, wherein said inlet and said outlet are each of a cylindrical configuration mounted perpendicular to said conveying pipe.

9. The single screw conveyor of claim 8, wherein spline housing is provided at each end of the screw shaft, the spline housing being adapted to be connected to the power unit and the conveying pipe.

10. A single screw conveyor according to claim 8, wherein said conveying pipe is provided with access openings.

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