Coal feeder flashboard

Abstract

The utility model provides a flashboard of a coal feeder, which relates to the technical field of flashboards and comprises a board sleeve, a flashboard, a sealing soft ring and a residual material bin. When the gate plate of the coal feeder works, the hydraulic cylinder drives the gate plate to slide in the plate groove, and when the gate plate is opened, materials enter the plate groove from the feeding port and are conveyed downwards. And when the flow needs to be adjusted or closed, the hydraulic cylinder pushes the gate plate to move to cover part or all of the feeding holes. In the moving process of the gate plate, residual materials in the plate groove and materials pushed out from the end of the gate plate are brought into the bin groove and fall into the collecting box through the discharging opening under the guide of the flow guide plate. When the flashboard is inserted into the feeding opening from the position between the upper sealing soft ring and the lower sealing soft ring, the two sealing soft rings can be compressed to contract towards the two sides, the sealing soft rings are tightly attached to the flashboard all the time through the elastic effect of the springs, and material leakage is prevented. Elastic sealing can adapt to slight abrasion of the flashboard, good sealing performance is continuously kept, the equipment maintenance cost is reduced, and the residual material bin achieves automatic collection of residual materials and avoids accumulation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate, especially relates to a coal feeder gate. BACKGROUND

[0002] The coal feeder gate is a key executive component for controlling coal conveying in a coal-fired industrial system, and is usually installed at a joint of a coal feeder, a raw coal bin, a coal conveying pipeline or a boiler inlet. Its core function is to achieve the dual functions of "flow interception" and "flow regulation" through mechanical opening and closing actions, intercept coal flow during system start / stop to avoid self-flow of coal. During normal operation, the coal supply is adjusted according to process requirements to ensure stable operation of the combustion system or the conveying system. This component is widely used in power plants, coal mine washing plants, heating boiler rooms and other scenes, especially in the fuel supply system of power plant boilers, and needs to be linked with coal feeders, belt conveyors, coal mills and other equipment, with extremely high requirements for sealing and reliability.

[0003] The existing coal feeder gate adopts a simple flat plate structure, and relies on direct contact between the gate and the door frame to achieve sealing. Under the condition of long-term operation and wear, the sealing gap is prone to appear, and poor sealing will cause uncontrolled coal flow to overflow or leak in. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of coal feeder gate, solve the problem that poor sealing will cause uncontrolled coal flow to overflow or leak in in the background technique described above.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of coal feeder gate, including sleeve, gate, sealing soft ring and residual material bin, the upper surface of the sleeve is provided with feed inlet, the inside of the sleeve is provided with plate groove, the plate groove separates the feed inlet into two parts, two groups of sealing soft ring are respectively fixed on the upper and lower surfaces of the plate groove in the position of the feed inlet, and the two groups of sealing soft ring are symmetrically arranged, the gate is slidably connected in the plate groove, the residual material bin is fixed at one end of the sleeve away from the gate, the inside of the residual material bin is provided with bin groove, the inside of the bin groove is fixedly connected with two groups of symmetrically arranged guide plates at lower end, one end of the two groups of guide plates is abutted, the upper surface of the guide plate is inclined, the highest point of the abutted end of the guide plate is higher than the lowest point of the opposite end of the abutted end of the guide plate, and the lowest end of the inclined surface of the guide plate is provided with vertically downward discharge port.

[0006] Preferably, the plate groove is communicated with the feed inlet, and the bin groove is communicated with the plate groove.

[0007] Preferably, the feed inlet is circular, the sealing soft ring is coaxially arranged with the feed inlet, and the surface area of the gate is greater than the opening area of the feed inlet.

[0008] Preferably, the sealing ring is hollow, and a plurality of springs are uniformly arranged in the sealing ring.

[0009] Preferably, one side of the feeding port is provided with a plate opening, and the plate opening is arranged on the plate sleeve.

[0010] Preferably, the plate groove is parallel to the upper surface of the plate sleeve, the height dimension of the bin groove is consistent with the height dimension of the plate groove, and the thickness dimension of the gate plate is consistent with the height dimension of the plate groove.

[0011] Preferably, one end of the plate sleeve close to the plate opening is fixedly connected with a hydraulic cylinder, and an output shaft of the hydraulic cylinder is fixedly connected to the gate plate.

[0012] Preferably, the cross section of the end of the gate plate away from the hydraulic cylinder is trapezoidal, and the height dimension of the end surface is smaller than the thickness dimension of the gate plate.

[0013] Preferably, the lower end of the discharging port is provided with a sliding rail, the sliding rail is fixed to the lower surface of the plate sleeve, a collecting box is slidably connected to the sliding rail, and the end of the sliding rail close to the feeding port is fixedly connected with a limiting block.

[0014] Preferably, the upper surface of the collecting box is provided with a box opening, and the opening dimension of the box opening is greater than the opening dimension of the discharging port.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The hydraulic cylinder drives the gate plate to slide in the plate groove, when the gate plate is opened, the material enters the plate groove from the feeding port and is conveyed downward. When it is needed to adjust the flow or to be closed, the hydraulic cylinder pushes the gate plate to move to cover part or all of the feeding port. During the movement of the gate plate, the residual material in the plate groove and the material pushed out by the end of the gate plate are brought into the bin groove and fall into the collecting box through the discharging port under the guidance of the flow guide plate. When the gate plate is inserted into the feeding port from between the two sealing rings, the two sealing rings are compressed to shrink to the two sides, and the sealing ring is always tightly attached to the gate plate through the elastic effect of the spring, so that the material leakage is prevented. The elastic sealing can adapt to the slight wear of the gate plate, continuously maintain good sealing property and reduce the equipment maintenance cost. The design of the residual material bin and the flow guide plate realizes the automatic collection of the residual material and avoids the accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the gate plate structure of the coal feeder of the utility model;

[0018] Figure 2 It is a top view of the gate plate of the utility model;

[0019] Figure 3 It is Figure 2a sectional view at A-A of figure

[0020] Figure 4 for Figure 3 an enlarged view at B of figure

[0021] Figure 5 for an internal sectional view of the residual material bin of the utility model;

[0022] Figure 6 for a structure schematic diagram of the slide rail installation position of the utility model;

[0023] Figure 7 for a structure schematic diagram of the collection box of the utility model.

[0024] Reference numerals in the drawing: 1, plate sleeve; 11, plate opening; 12, feed opening; 13, plate groove; 2, hydraulic cylinder; 3, gate plate; 4, sealing soft ring; 41, spring; 5, residual material bin; 51, bin groove; 52, guide plate; 521, discharge opening; 53, slide rail; 531, limiting block; 6, collection box; 61, box opening. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The utility model provides a kind of gate plate of coal feeder, such as Figure 1 And Figure 2 As shown, including plate sleeve 1, gate plate 3, sealing soft ring 4 and residual material bin 5, the upper surface of plate sleeve 1 is provided with feed opening 12, and the inside of plate sleeve 1 is provided with plate groove 13, as Figure 3 And Figure 4 As shown, plate groove 13 is divided into upper and lower two parts by feed opening 12, and plate groove 13 is communicated with feed opening 12, and two groups of sealing soft ring 4 are respectively fixed on the upper and lower surfaces of plate groove 13 in the position of feed opening 12, and two groups of sealing soft ring 4 are symmetrically arranged, and gate plate 3 is slidably connected in plate groove 13, as Figure 5As shown in the drawings, the residual material bin 5 is fixed at the end of the plate sleeve 1 away from the gate plate 3. The inside of the residual material bin 5 is provided with a bin groove 51, which is in communication with the plate groove 13. The inside of the bin groove 51 is fixedly connected with two groups of symmetrical flow guide plates 52. One end of the two groups of flow guide plates 52 is in abutment. The upper surface of the flow guide plate 52 is a slope. The highest point of the abutment end of the flow guide plate 52 is higher than the lowest point of the opposite end of the abutment end. A vertical downward discharge port 521 is formed through the lowest end of the slope of the flow guide plate 52. The material can enter the plate groove 13 from the feeding port 12. The horizontal arrangement of the plate groove 13 facilitates the transverse sliding of the gate plate 3 to control the flow of the material. When the gate plate 3 slides to seal the discharge port 521, the material entering the discharge port 521 is cut off. At the same time, the end of the gate plate 3 pushes a small part of the material into the bin groove 51. Under the action of the slope of the flow guide plate 52, the material slides down the slope to the discharge port 521, avoiding the accumulation of residual material in the bin groove 51.

[0027] As shown in the drawings, Figure 2 and Figure 4 The feeding port 12 is circular, and the sealing soft ring 4 is coaxially arranged with the feeding port 12. The surface area of the gate plate 3 is larger than the opening area of the feeding port 12. The sealing soft ring 4 is hollow. A plurality of springs 41 are uniformly arranged in the inside of the sealing soft ring 4. When the gate plate 3 slides, the sealing soft ring 4 is deformed under pressure. The spring 41 provides elastic support, so that the sealing soft ring 4 closely abuts the surface of the gate plate 3, forming a flexible seal. This structure can effectively prevent the leakage of material dust from the gap between the plate groove 13 and the gate plate 3. Compared with rigid sealing, elastic sealing can adapt to the slight wear of the gate plate 3, continuously maintain good sealing performance, and reduce equipment maintenance cost.

[0028] As shown in the drawings, Figure 1 and Figure 2 One side of the feeding port 12 is provided with a plate port 11, which is formed through the plate sleeve 1. The plate groove 13 is parallel to the upper surface of the plate sleeve 1. The height dimension of the bin groove 51 is consistent with that of the plate groove 13. The thickness dimension of the gate plate 3 is consistent with the height dimension of the plate groove 13. The end of the plate sleeve 1 close to the plate port 11 is fixedly connected with the hydraulic cylinder 2. The output shaft of the hydraulic cylinder 2 is fixedly connected with the gate plate 3. The hydraulic cylinder 2 drives the gate plate 3 to slide transversely in the plate groove 13.

[0029] As shown in the drawings, Figure 4 The cross section of the end of the gate plate 3 away from the hydraulic cylinder 2 is trapezoidal, and the height dimension of this end surface is smaller than the thickness dimension of the gate plate 3. The trapezoidal end surface design can make the gate plate 3 more smooth when inserted between the two sealing soft rings 4, facilitating the separation of the two sealing soft rings 4.

[0030] As shown in the drawings, Figure 6 and Figure 7As shown, the lower end of the discharge port 521 is provided with a sliding rail 53 fixed on the lower surface of the plate sleeve 1, and the collecting box 6 is slidingly connected to the sliding rail 53, and the end of the sliding rail 53 close to the feeding port 12 is fixedly connected with a limiting block 531. The limiting block 531 prevents the collecting box 6 from sliding out of the sliding rail 53. The upper surface of the collecting box 6 is provided with a box opening 61, and the opening size of the box opening 61 is greater than the opening size of the discharge port 521. The collecting box 6 can be pulled out along the sliding rail 53, so that the residual material can be easily cleaned, and the design that the box opening 61 is greater than the discharge port 521 ensures that all the materials fall into the collecting box 6, avoids the residual material from spilling, and keeps the environment around the equipment clean.

[0031] As shown in the drawings, Figure 1 and Figure 2 As shown, during work, the hydraulic cylinder 2 drives the gate plate 3 to slide in the plate groove 13, and when the gate plate 3 is opened, the material enters the plate groove 13 from the feeding port 12 and is conveyed downward. When it is necessary to adjust the flow or to close, the hydraulic cylinder 2 pushes the gate plate 3 to move and cover part or all of the feeding port 12. During the movement of the gate plate 3, the residual material in the plate groove 13 and the material pushed out by the end of the gate plate 3 are brought into the residual material bin 51 and fall into the collecting box 6 through the discharge port 521 under the guidance of the flow guide plate 52. When the gate plate 3 is inserted into the feeding port 12 from between the two upper and lower sealing soft rings 4, the two sealing soft rings 4 are compressed and shrink to the two sides, and the sealing soft ring 4 is always tightly attached to the gate plate 3 through the elastic action of the spring 41, so that the material leakage is prevented. The elastic sealing can adapt to the slight wear of the gate plate 3, continuously maintain good sealing performance, and reduce the equipment maintenance cost. The design of the residual material bin 5 and the flow guide plate 52 realizes automatic collection of residual material and avoids accumulation.

[0032] Although the embodiments of the present application have been disclosed as above, they are not limited to the application and implementation listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the drawings shown and described herein.

Claims

1. A coal feeder gate, characterised in that, Including the board nest (1), the shutter (3), the sealing soft ring (4) and the residual material warehouse (5), the upper surface of the board nest (1) is equipped with the feed inlet (12) through, the inside of the board nest (1) is equipped with the board groove (13), the board groove (13) is divided into two parts of upper and lower with the feed inlet (12), two groups of sealing soft ring (4) are fixed on the upper and lower surfaces of the board groove (13) in the position of the feed inlet (12) respectively and two groups of sealing soft ring (4) are symmetrically arranged, the shutter (3) is slidably connected in the board groove (13), the residual material warehouse (5) is fixed in the board nest (1) away from the shutter (3) one end, the inside of the residual material warehouse (5) is equipped with the warehouse groove (51), the inside lower end of the warehouse groove (51) is fixedly connected with two groups of symmetrically arranged guide plates (52), one end of two groups of guide plates (52) is attached, the upper surface of the guide plate (52) is inclined, the highest point of the guide plate (52) attached end is higher than the lowest point of the opposite end of the guide plate (52) attached end, and the lowest end of the inclined surface of the guide plate (52) is equipped with the vertical downward discharge port (521) through.

2. The coal feeder gate according to claim 1, wherein, The board groove (13) is communicated with the feed inlet (12), and the warehouse groove (51) is communicated with the board groove (13).

3. The gate of a coal feeder according to claim 1, characterized in that, The feed inlet (12) is circular, the sealing soft ring (4) is coaxially arranged with the feed inlet (12), and the surface area of the shutter (3) is greater than the opening area of the feed inlet (12).

4. A coal gate according to claim 3, wherein The sealing soft ring (4) is hollow, and a plurality of springs (41) are uniformly arranged in the sealing soft ring (4).

5. The gate according to claim 1, wherein One side of the feed inlet (12) is provided with a board port (11), and the board port (11) is through in the board nest (1).

6. The gate according to claim 1, wherein The board groove (13) is parallel to the upper surface of the board nest (1), the height dimension of the warehouse groove (51) is consistent with that of the board groove (13), and the thickness dimension of the shutter (3) is consistent with the height dimension of the board groove (13).

7. The gate according to claim 5, wherein The board nest (1) is fixedly connected with a hydraulic cylinder (2) at one end close to the board port (11), and the output shaft of the hydraulic cylinder (2) is fixedly connected with the shutter (3).

8. A coal gate according to claim 7, characterised in that The cross section of the shutter (3) away from the hydraulic cylinder (2) is trapezoidal, and the height dimension of this end surface is less than the thickness dimension of the shutter (3).

9. The coal feeder gate according to claim 1, wherein, The lower end of the discharge port (521) is provided with a slide rail (53), the slide rail (53) is fixed on the lower surface of the board nest (1), the slide rail (53) is slidably connected with a collecting box (6), and the slide rail (53) is fixedly connected with a limiting block (531) at one end close to the feed inlet (12).

10. A coal gate according to claim 9, wherein The upper surface of the collecting box (6) is provided with a box port (61), and the opening size of the box port (61) is greater than that of the discharge port (521).

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