CN111891577A

CN111891577A - Curve anti-blocking hopper

Info

Publication number: CN111891577A
Application number: CN202010842690.0A
Authority: CN
Inventors: 赵东楼
Original assignee: ANHUI KANGDINA ELECTRIC POWER TECHNOLOGY CO LTD
Current assignee: ANHUI KANGDINA ELECTRIC POWER TECHNOLOGY CO LTD
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-11-06
Also published as: WO2022036798A1

Abstract

The invention provides a curve anti-blocking hopper which comprises a curve hopper, wherein the upper part of the curve hopper is large, the lower part of the curve hopper is small, an inner hopper wall is in smooth transition from top to bottom, a discharge valve is arranged below the curve hopper, a kicking hammer for striking the hopper wall is arranged on the outer hopper wall of the curve hopper, a cylinder is arranged beside the curve hopper and is fixedly connected with a cylinder support, and a telescopic path of a piston rod on the cylinder penetrates through the hopper wall and a discharge opening of the curve hopper. In the above scheme, the blockage is cleared up through the combined action of the kick-loosening hammer and the piston rod, the time and the labor are saved, the impact force is higher, the dredging of the blanking opening is facilitated, the problem of blanking blockage of the material funnel is solved, and the purpose of arch breaking and dredging is achieved.

Description

Curve anti-blocking hopper

Technical Field

The invention relates to the field of conveying and dredging of solid granular materials, in particular to a curve anti-blocking hopper.

Background

Most of the existing hoppers for feeding are in a vertically-arranged funnel shape, the upper ends of the hoppers are provided with feed inlets, the lower ends of the hoppers are provided with discharge outlets, and the hoppers are in a tapered tubular structure with a large upper part and a small lower part, such as a curved shrimp coal hopper, so that the pressure borne by the materials is gradually increased when the materials flow downwards, the cross-sectional area of through flow is smaller, and the friction and extrusion force between the materials and the hopper wall and between the materials are larger and larger; the materials are easy to extrude into an arch, and the downward flow of the materials is blocked; when the material granule is little, the ash is big, humidity is big, the stickness is big, the mobility in material and the hopper is very poor, can often take place blocking phenomenon, and the material in case the jam can seriously influence equipment safety, especially rubbish now.

The name is: in the application of the hopper bin wall to the air hammer (patent number: 201310052306.7), the air hammer at the piston rod end of the air cylinder is used for rapping the outer wall of the hopper to realize the dredging of the feed opening. It has better effect on dry powder or granular materials. However, the existing waste incineration power generation is more and more popularized, wherein the humidity and viscosity of materials to be incinerated are extremely large, the material blocking phenomenon is extremely easy to occur during the blanking, the blanking port cannot be effectively dredged by the rapping of the piston rod, the common method in the prior art is to open the observation port at the blanking port, a worker uses one material smashing drill rod to stretch into the observation port to dredge the material blocking position, and the mode is time-consuming, labor-consuming and has potential safety hazards. And the existing hopper is formed by splicing a plurality of sections of cylindrical structures, and the material is easily blocked and bridged at the splicing position.

Disclosure of Invention

The invention aims to provide a curve anti-blocking hopper which is safe to use and good in dredging effect.

In order to realize the purpose, the technical scheme is as follows: the utility model provides a stifled hopper is prevented to curve, includes big-end-up and interior headwall top-down rounding off's curve hopper, and the below of curve hopper is provided with the discharge valve, is provided with the hammer of kicking-off that hits the headwall on the outer headwall of curve hopper, and the side of curve hopper is provided with the cylinder, and the cylinder is fixed continuous with the cylinder support, and the headwall and the feed opening of curve hopper are passed in the flexible route of the piston rod on the cylinder.

In the scheme, the blockage is cleaned through the combined action of the kick-loosening hammer and the piston rod, so that the time and the labor are saved, the impact force is larger, the blockage of the blanking port is more favorably dredged, the problem of blanking blockage of the material funnel is solved, and the purposes of arch breaking and dredging are achieved.

Drawings

FIGS. 1 and 2 are schematic structural diagrams of the present application;

FIGS. 3 and 4 are schematic diagrams of two positions of the material-breaking signal collector;

fig. 5, 6, and 7 are sectional views of the cylinder assembly.

Detailed Description

The utility model provides a curve prevents hopper that blocks up, includes big-end-up and interior headwall top-down rounding off's curve hopper 10, and the below of curve hopper 10 is provided with discharge valve 11, is provided with the kicking-loose hammer 50 of hitting the headwall on the outer headwall of curve hopper 10, and the side of curve hopper 10 is provided with cylinder 30, and cylinder 30 is fixed continuous with cylinder support 20, and the headwall and the feed opening of curve hopper 10 are passed to the flexible route of the piston rod 32 on the cylinder 30.

In the scheme, the inner wall of the smooth hopper is not easy to generate a repose angle, and the smooth degree of blanking can be ensured. Then the blockage is cleared up through the combined action of the kick-loosening hammer 50 and the piston rod 32, the piston rod 32 is directly inserted into a blanking hole to impact the blocked material to simulate the manual material tamping drill operation, time and labor are saved, the impact force is higher, the material moving is facilitated, the problem of blanking blockage of a material funnel is solved, and the purpose of arch breaking and dredging is achieved.

A material breaking signal collector 60 is arranged on the material conveying device 70 below the feed opening of the curve hopper 10, and a material breaking signal of the material breaking signal collector 60 is related to a driving signal of the piston rod 32 and the kicking hammer 50. After the discharge valve 11 is opened, the kick-loosening hammer 50 is started preferentially when a material breaking signal appears, and the piston rod 32 is continuously started if the material breaking signal does not disappear, so that automatic blockage clearing operation is realized without manual participation, and time and labor are saved.

The kick-type hammers 50 are at least 2 arranged on the periphery of the curved hopper 10 at the same height, the kick-type hammers 50 are at least two layers vertically, and at least 1 layer of the kick-type hammers 50 is arranged below the discharge valve 11. The kick-start hammer 50 arranged in multiple layers can cover all parts of the hopper, the lower part of the discharge valve 11 is easy to agglomerate due to the fact that the upper part of the discharge valve 11 is easy to agglomerate when the discharge valve 11 is closed, and the lower part of the discharge valve 11 is easy to block when the discharge valve is suddenly discharged, so the kick-start hammer 50 is arranged below the lower part of the discharge valve 11

The connection position of the air cylinder 30 and the curve hopper 10 is positioned above the discharge valve 11, and the telescopic path of the piston rod 32 penetrates through the discharge valve 11 and the discharge opening. The blockage removing stroke of the piston rod 32 above the discharge valve 11 is longer, and the blockage removing can be effectively carried out on the discharge valve 11 and the discharge opening.

The connection position of the air cylinder 30 and the curve hopper 10 is positioned below the discharge valve 11, and the telescopic path of the piston rod 32 penetrates through the discharge opening. The air cylinder 30 is disposed below the discharge valve 11 because a portion of the discharge valve 11 through which the piston rod 32 cannot pass, such as the star-shaped discharge valve 11, and the air cylinder 30 located above the discharge valve 11 is susceptible to being poured back into the junction by the material above the discharge valve 11 when the discharge valve 11 is closed.

Two air cylinders 30 are oppositely arranged on the curve hopper 10, the joints of the two air cylinders 30 and the curve hopper 10 are respectively positioned above and below the discharge valve 11, and the telescopic path of the piston rod 32 penetrates through the discharge valve 11 and/or the feed opening. Therefore, the piston rods 32 are arranged at two positions in two directions, so that the blockage cleaning area is larger, and the blockage at each position can be cleaned more conveniently.

The material cutting signal collector 60 comprises a material baffle 61 which is hinged above the material conveying device 70 in a suspending mode, the surface of the material baffle 61 is perpendicular to the material conveying direction, the lower end of the material baffle 61 is close to the working surface of the material conveying device 70 and is arranged at intervals, the shaft core direction of a hinge shaft 62 at the upper end of the material baffle 61 is located in the horizontal direction and perpendicular to the material conveying direction, and the hinge shaft 62 is connected with a corner collector 63. Thus, when the material conveying device 70 starts to convey material, the material on the material conveying device impacts the material baffle plate 61 to enable the material baffle plate to swing around the hinge shaft 62 for a certain angle, the angle signal collected by the corner collector 63 is a material conveying signal, and when the angle returns to zero and is too small, the material stopping signal is obtained.

The cylinder support 20 is fixedly arranged on the side wall of the curve hopper 10 above the feed opening, and the protective pipe 22 sleeved on the outer side of the cylinder body of the cylinder 30 is obliquely arranged on the cylinder support 20. Because the bucket diameter of the curve hopper 10 is large, the length of the piston rod 32 is limited by the conventional cylinder specification, in order to provide a long piston rod 32 to increase the mass of the piston rod and improve the striking impulse, a section of rod body of the piston rod 32 which retracts to the right position is still positioned outside the cylinder body, and in order to carry out containment on the piston rod, the protection pipe 22 is arranged, the whole cylinder can be arranged in the protection pipe, containment is obtained under the non-use state, and the length of the protection pipe 22 is usually designed to be consistent with the length of the cylinder assembly in the retraction state.

The extending direction of the piston rod 32 is biased towards the conveying direction of the material conveying device 70 below the discharge opening. Therefore, the blocked materials can be pushed to the downstream of the material conveying device 70 below the feed opening, and the materials are prevented from being piled up and blocked again after being pushed to the upstream and returning to the position of the feed opening and the newly falling materials at the feed opening. The anti-blocking dredging effect is optimal.

The front end of the piston rod 32 is conical or wedge-shaped or cylindrical. The taper or wedge shape facilitates cleaning.

The end of the protective tube 22 through which the piston rod 32 passes is connected with a buffer sleeve 40 through a flange, a retainer ring 42 is arranged on the buffer sleeve 40, an annular bulge 321 is arranged on the piston rod 32 behind the retainer ring 42, and the distance between the retainer ring 42 and the annular bulge 321 is smaller than the distance between the piston of the cylinder and the front end cover of the cylinder. When the piston of the cylinder kick occurs, the annular protrusion 321 contacts the retainer ring 42 before the piston of the cylinder impacts the front end cover, and the retainer ring 42 bears impact force generated by the kick, so that the front end cover of the cylinder is prevented from being damaged.

An annular step is arranged on the piston rod 32 in front of the retainer ring 42, and the distance between the retainer ring 42 and the annular step is smaller than the distance between the cylinder piston and the rear end cover thereof. Thus, when the piston rod 32 returns, the annular step contacts the retainer ring 42 before the cylinder piston impacts the rear end cover thereof, and the retainer ring 42 receives the impact force generated by the return stroke of the piston rod 32, thereby preventing the rear end cover of the cylinder from being damaged.

The retainer rings 42 are respectively arranged at two ends in the buffer sleeve 40, a spring 43 is sleeved on the rod body of the piston rod 32 between the two retainer rings 42, and when the spring 43 is compressed to the minimum, the cylinder piston is spaced from the front end cover and the rear end cover of the cylinder piston. In the above-mentioned scheme, when the piston rod 32 moves to reach the designed stroke, the annular protruded cylinder 321 on the piston rod will firstly strike the retainer ring 42 and the spring 43 in the buffer sleeve 40, and the spring 43 will generate an elastic force to counteract the inertia force of the piston rod 32 when being compressed, and the other structure bearing the elastic force of the spring 43 is that the cylinder bracket 20 fixedly connected with the buffer sleeve 40 has a higher structural strength and is not easily damaged, and the piston does not strike the cylinder end cover when the spring 43 is compressed to the shortest.

The cylinder support 20 is a square tube or round tube structure sleeved on the outer side of the cylinder body of the cylinder 30, and a pipe end flange of the cylinder support 20, through which the piston rod 32 passes, is connected with a buffer sleeve 40. Therefore, the buffer sleeve 40 is convenient to manufacture and install, the piston rod 32 is generally longer in length, so that the longer piston rod 32 is provided to increase the mass of the piston rod 32 and improve the striking impulse, a section of rod body of the piston rod 32 which retracts to the right position is still positioned outside the cylinder body, and enclosure is implemented for the piston rod 32.

One end of the buffer sleeve 40 is connected with the cylinder support 20, via holes 411 are formed in the end plates 41 at the two ends of the buffer sleeve 40, check rings 42 are arranged on the inner side plate surfaces of the two end plates 41, the peripheral size of each check ring 42 is larger than the aperture of each via hole 411, the inner hole size of each check ring 42 is smaller than the aperture of each via hole 411, and two ends of a spring 43 arranged in the buffer sleeve 40 are abutted to the check rings 42 respectively. The arrangement of the buffer sleeve 40 ensures that the spring retainer ring is used for limiting the moving distance of the piston rod when the piston rod 32 extends out or retracts into an extreme position, thereby playing a role in limiting, buffering and protecting and avoiding the phenomenon that the piston impacts the end cover of the cylinder.

The outer peripheral dimension of the annular step and the annular protrusion 321 is smaller than the aperture of the end plate via hole 411, and the outer peripheral dimension of the step is larger than the inner hole dimension of the retainer ring 42. One protrusion 321 is provided near the end of the piston rod 32, and the distance between the two protrusions 321 corresponds to the stroke of the piston. For example, when the piston rod 32 is extended and the piston is about to approach the front end cover of the cylinder, the cylinder of the protrusion 321 first contacts the spring retainer 42 installed in the buffer sleeve, and the speed of the piston rod 32 is reduced under the buffer action of the compression spring 43, so that the impact of the piston on the front end cover of the cylinder is obviously relieved, and vice versa.

The cleaning brush ring 44 is arranged at the outer end nozzle of the buffer sleeve 40. The cleaning brush ring 44 is used to remove the coke ash adhered to the piston rod 32 in the furnace wall, and prevent the coke ash from accumulating and blocking the tube body 22.

The cleaning brush ring 44 is a ring-shaped brush as shown in fig. 5. The annular brush is beneficial to cleaning fine granular coke ash.

The cleaning brush ring 44 is an annular brush blade with the blade opening facing outward as shown in fig. 6. The brush shovel facilitates cleaning of foreign matter attached to the piston rod 32.

Claims

1. The utility model provides a stifled hopper is prevented to curve which characterized in that: the kick-start hammer comprises a curve hopper (10) which is large in top and small in bottom and has an inner hopper wall in smooth transition from top to bottom, a discharge valve (11) is arranged below the curve hopper (10), a kick-start hammer (50) for striking the hopper wall is arranged on the outer hopper wall of the curve hopper (10), a cylinder (30) is arranged beside the curve hopper (10), the cylinder (30) is fixedly connected with a cylinder support (20), and a telescopic path of a piston rod (32) on the cylinder (30) penetrates through the hopper wall and a discharge opening of the curve hopper (10).

2. The curved line anti-clogging hopper of claim 1, wherein: and a material-breaking signal collector (60) is arranged on the material conveying device (70) below the discharging opening of the curve hopper (10), and a material-breaking signal of the material-breaking signal collector (60) is related to a piston rod (32) and a driving signal of the kick-start hammer (50).

3. The curved line anti-clogging hopper of claim 1, wherein: the kick-type hammer (50) is at least 2 in the circumferential direction of a curve hopper (10) at the same height, the kick-type hammer (50) is at least vertically arranged in two layers, and at least 1 layer of the kick-type hammer (50) is arranged below a discharge valve (11).

4. The curved line anti-clogging hopper of claim 1, wherein: the connecting position of the air cylinder (30) and the curve hopper (10) is positioned above the discharge valve (11), and the telescopic path of the piston rod (32) penetrates through the discharge valve (11) and the discharge opening.

5. The curved line anti-clogging hopper of claim 1, wherein: the connecting position of the air cylinder (30) and the curve hopper (10) is positioned below the discharge valve (11), and the telescopic path of the piston rod (32) penetrates through the discharge hole.

6. The curved line anti-clogging hopper of claim 1, wherein: the two cylinders (30) are arranged on the curve hopper (10) oppositely, the connecting positions of the two cylinders (30) and the curve hopper (10) are respectively positioned above and below the discharge valve (11), and the telescopic path of the piston rod (32) penetrates through the discharge valve (11) and/or the discharge opening.

7. The curved line anti-clogging hopper of claim 2, wherein: disconnected material signal collector (60) articulate striker plate (61) in feeding device (70) top including the suspension, and the face and the defeated material direction of striker plate (61) are perpendicular, and the lower extreme of striker plate (61) closes on and interval arrangement with the working face of feeding device (70), and the axle core direction of striker plate (61) upper end articulated shaft (62) is located the horizontal direction and the defeated material direction of perpendicular to, and articulated shaft (62) link to each other with corner collector (63).

8. The impact beam cushioning structure according to claim 1, wherein: the air cylinder support (20) is fixedly arranged on the side wall of the curve hopper (10) above the feed opening, and the air cylinder support (20) is sleeved with a protection pipe (22) arranged on the outer side of the air cylinder (30) in an inclined mode.

9. The curvilinear anti-clogging hopper according to claim 1, 4 or 5, characterized in that: the extending direction of the piston rod (32) deviates the conveying direction of the material conveying device (70) below the discharge opening.

10. The curved line anti-clogging hopper according to claim 1 or 8, characterized in that: the front end of the piston rod (32) is conical, wedge-shaped or cylindrical.

11. The curved line anti-clogging hopper of claim 8, wherein: the end of the protective pipe (22) through which the piston rod (32) passes is connected with a buffer sleeve (40) through a flange, a retainer ring (42) is arranged on the buffer sleeve (40), an annular bulge (321) is arranged on the piston rod (32) behind the retainer ring (42), and the distance between the retainer ring (42) and the annular bulge (321) is smaller than the distance between the cylinder piston and the front end cover thereof.

12. The curvilinear anti-clogging hopper of claim 9, wherein: the piston rod (32) in front of the retainer ring (42) is provided with an annular step, and the distance between the retainer ring (42) and the annular step is smaller than the distance between the cylinder piston and the rear end cover thereof.

13. The impact beam cushioning structure according to claim 10, wherein: the two ends of the inner part of the buffer sleeve (40) are respectively provided with one retainer ring (42), a spring (43) is sleeved on the rod body of the piston rod (32) between the two retainer rings (42), and when the spring (43) is compressed to the minimum, the cylinder piston is spaced from the front end cover and the rear end cover of the cylinder piston.

14. The impact beam cushioning structure according to claim 8, wherein: the cylinder support (20) is of a square tube or round tube structure sleeved on the outer side of the cylinder body of the cylinder (30), and a pipe end flange of the cylinder support (20) for the piston rod (32) to pass through is connected with a buffer sleeve (40).

15. The impact beam cushioning structure according to claim 8, wherein: one end of the buffer sleeve (40) is connected with the cylinder support (20) and the end plates (41) at the two ends of the buffer sleeve (40) are provided with through holes (411), the inner side plate surfaces of the two end plates (41) are provided with check rings (42), the peripheral size of each check ring (42) is larger than the aperture of each through hole (411) and the inner hole size of each check ring (42) is smaller than the aperture of each through hole (411), and the two ends of a spring (43) arranged in the buffer sleeve (40) are abutted to the check rings (42) respectively.

16. The impact beam cushioning structure according to claim 9, wherein: the peripheral size of the annular step and the annular bulge (321) is smaller than the aperture of the end plate via hole (411), and the peripheral size of the step is larger than the size of an inner hole of the retainer ring (42).

17. The impact beam cushioning structure according to claim 8, wherein: a cleaning brush ring (44) is arranged at the outer end pipe orifice of the buffer sleeve (40).

18. The decoking mechanism of claim 17, wherein: the cleaning brush ring (44) is an annular brush.

19. The decoking mechanism of claim 17, wherein: the cleaning brush ring (44) is an annular brush shovel with an outward shovel opening.