CN114988057A - Thermal power plant's coal breakage pipe anti-sticking coal cleans stifled device - Google Patents
Thermal power plant's coal breakage pipe anti-sticking coal cleans stifled device Download PDFInfo
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- CN114988057A CN114988057A CN202210697966.XA CN202210697966A CN114988057A CN 114988057 A CN114988057 A CN 114988057A CN 202210697966 A CN202210697966 A CN 202210697966A CN 114988057 A CN114988057 A CN 114988057A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
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Abstract
The invention discloses a device for preventing coal from being blocked by a coal dropping pipe of a thermal power plant, which comprises a coal dropping pipeline module, wherein the coal dropping pipeline module comprises a pipeline assembly and a blocking cleaning assembly, the pipeline assembly is movably connected with the blocking cleaning assembly, and the blocking cleaning assembly comprises a gas storage bin, a compressed air pipe and a first control valve; and the pressure relief module comprises an air inlet assembly, a pressure relief assembly and an elastic sealing assembly. According to the invention, coal is conveyed through the pipeline assembly, and falls to the coal mill through the coal dropping pipe, compressed air is periodically output through the blockage cleaning assembly to clean the coal dropping pipe, and in the cleaning process, redundant compressed air in overpressure is discharged through the pressure relief module and is linked with the linkage module, so that the air inflow of the air inlet valve is synchronously reduced, the pressure is quickly reduced, and the influence of the overpressure on the equipment on the use safety is avoided.
Description
Technical Field
The invention relates to the technical field of thermal power plants, in particular to a device for preventing coal from being blocked by a coal dropping pipe of a thermal power plant.
Background
The coal feeder export coal breakage pipe in the coal feeder of thermal power factory export in the use surface is more and more coarse, and incoming material moisture content is high when adding rainy season, and viscosity is high, leads to the buggy adhesion on the coal breakage inside pipe wall, and it blocks up more and more to heal up causes the coal feeder export to the coal pulverizer entry the coal breakage pipe jam.
In the cleaning process of the coal dropping pipe, supercharging equipment is often needed to blow air in the pipeline to clean coal powder, and when the supercharging equipment is used, air is not smoothly discharged when the coal dropping pipe is seriously blocked, so that the overpressure phenomenon is easy to occur, the use safety of the equipment is influenced, and the long-time use of the equipment is not facilitated.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the problems occurring in the prior art.
Therefore, the invention aims to solve the technical problems that when the supercharging equipment is used, air is not smoothly discharged when the coal dropping pipe is seriously blocked, the overpressure phenomenon is easy to occur, and the use safety of the equipment is influenced.
In order to solve the technical problems, the invention provides the following technical scheme: the device for preventing the blockage of the coal sticking of the coal dropping pipe of the thermal power plant comprises a coal dropping pipeline module, wherein the coal dropping pipeline module comprises a pipeline assembly and a blockage clearing assembly, the pipeline assembly is movably connected with the blockage clearing assembly, and the blockage clearing assembly comprises a gas storage bin, a compressed air pipe and a first control valve; the pressure relief module comprises an air inlet assembly, a pressure relief assembly and an elastic sealing assembly, the air inlet assembly is movably connected with the pressure relief assembly and the elastic sealing assembly respectively, the air inlet assembly comprises a communicating conduit, and the air inlet assembly is communicated with the air storage bin through the communicating conduit; and the linkage module comprises a pushing assembly, a linkage assembly and a transmission assembly, the linkage assembly is movably connected with the pushing assembly and the transmission assembly respectively, the pressure relief assembly comprises a pressure relief pipe, the pushing assembly comprises a sealing bin, one end of the pressure relief pipe is communicated with the sealing bin, the transmission assembly comprises a driven gear and a traction rod, one end of the traction rod is fixedly connected with the driven gear, and the other end of the traction rod is fixedly connected with the control end of the first control valve.
As a preferable scheme of the device for preventing coal from being blocked for the coal dropping pipe of the thermal power plant, the device comprises: the pipeline component comprises a coal dropping pipe, an electric door, a connecting pipe and an annular air pipe, one end of the coal dropping pipe is communicated with the connecting pipe through the electric door, the other end of the coal dropping pipe is connected with a flange, the annular air pipe is sleeved on the surface of the coal dropping pipe, the inner side of the annular air pipe is communicated with an injection pipe, and one end of the injection pipe is communicated with the coal dropping pipe.
As a preferable embodiment of the device for preventing coal blockage of a coal chute of a thermal power plant of the present invention, wherein: clear stifled subassembly includes first trachea, second trachea and second control valve, tracheal one end of second and first trachea intercommunication, the tracheal other end of second and annular trachea intercommunication, tracheal one end of first and gas storage bin intercommunication, the second control valve sets up in first tracheal outer wall, the one end intercommunication of gas storage bin has the pressure boost pipe.
As a preferable scheme of the device for preventing coal from being blocked for the coal dropping pipe of the thermal power plant, the device comprises: the air inlet assembly comprises an air inlet bin, a piston and a first spring, one end of the communicating conduit is communicated with the air inlet bin, one end of the first spring is connected with the air inlet bin, and the other end of the first spring is connected with the piston.
As a preferable scheme of the device for preventing coal from being blocked for the coal dropping pipe of the thermal power plant, the device comprises: the pressure relief assembly comprises a sealing sleeve, a push rod and a sealing cover, one end of the sealing sleeve and one end of the push rod are both connected with the sealing cover, one end of the sealing cover is fixedly connected with the air inlet bin, and the outer wall of the sealing sleeve is communicated with the pressure relief pipe.
As a preferable embodiment of the device for preventing coal blockage of a coal chute of a thermal power plant of the present invention, wherein: the elastic sealing assembly comprises a guide pillar, an air inlet, a loop bar and a second spring, one end of the guide pillar is connected with a piston, the air inlet is formed in the bottom of the inner wall of the guide pillar, one end of the loop bar is fixedly connected with the inner wall of the guide pillar, one end of the second spring is fixedly connected with the loop bar, the other end of the second spring is connected with a limiting rod, the top of the limiting rod penetrates through the outer side of the loop bar, and an air outlet is formed in the top of the guide pillar.
As a preferable embodiment of the device for preventing coal blockage of a coal chute of a thermal power plant of the present invention, wherein: the pressure relief module further comprises a clamping sealing assembly, the clamping sealing assembly comprises a circular plate, a sealing rubber plate, a sealing plug and an annular convex ring, two ends of the circular plate are respectively connected with the limiting rod and the sealing rubber plate, one ends of the sealing plug and the annular convex ring are respectively connected with the sealing rubber plate, an annular groove matched with the annular convex ring for use is formed in the inner wall of the guide pillar, and the outer wall of the sealing plug is meshed with the inner wall of the gas outlet.
As a preferable scheme of the device for preventing coal from being blocked for the coal dropping pipe of the thermal power plant, the device comprises: the promotion subassembly includes third spring and sealed push pedal, third spring and sealed push pedal all set up in the inner chamber of seal chamber, the both ends of third spring are connected with seal chamber and sealed push pedal respectively, the bottom and the gas storage storehouse fixed connection of seal chamber, the outer wall intercommunication of seal chamber has the pressure release discharge pipe.
As a preferable embodiment of the device for preventing coal blockage of a coal chute of a thermal power plant of the present invention, wherein: the linkage subassembly includes pinion rack, vaulting pole, pulley and drive gear, the one end and the sealed push pedal of pinion rack are connected, the surface and the drive gear meshing of pinion rack, the one end and the pinion rack fixed connection of vaulting pole, the one end and the vaulting pole of pulley are connected, the bottom of pulley and the bottom sliding connection of sealed storehouse inner wall.
As a preferable embodiment of the device for preventing coal blockage of a coal chute of a thermal power plant of the present invention, wherein: the drive assembly still includes rotary rod, driving gear and driving chain, the outer wall of rotary rod and drive gear's inner wall fixed connection, the both ends of rotary rod all with the inner wall swing joint of sealed bin, the driving gear sets up in the outer wall of rotary rod, the one end and the driving gear meshing of driving chain inner circle, the other end and the driven gear meshing of driving chain inner circle.
The invention has the beneficial effects that: according to the invention, the coal is conveyed through the pipeline assembly, and falls to the coal mill through the coal dropping pipe, compressed air is periodically output through the blockage cleaning assembly to clean the coal dropping pipe, redundant compressed air in overpressure is discharged through the pressure relief module in the cleaning process, and the compressed air is linked with the linkage module, so that the air inflow of the air inlet valve is synchronously reduced, the pressure is rapidly reduced, and the influence of the overpressure on the use safety of equipment is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a diagram showing an installation structure of the apparatus in the first, second, and third embodiments.
Fig. 2 is a mounting structure view of a pressure relief module and a linkage module in the first, second, and third embodiments.
Fig. 3 is a schematic structural diagram of a pressure relief module in a second embodiment.
Fig. 4 is a top view of a second embodiment of the elastomeric seal assembly.
Fig. 5 is a sectional view of the elastomeric seal assembly of fig. 4 taken along the line a-a in a second embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides a device for preventing coal from being stuck in a coal chute of a thermal power plant, which includes a coal chute module 100, the coal chute module 100 includes a pipe assembly 101 and a blockage clearing assembly 102, the pipe assembly 101 is movably connected to the blockage clearing assembly 102, and the blockage clearing assembly 102 includes a gas storage bin 102a, a compressed air pipe 102g and a first control valve 102 f.
In the process of conveying coal in a thermal power plant, the coal is conveyed through the pipeline assembly, so that the coal is conveyed from a raw coal bunker to a coal mill, the coal is easily adhered to the inner wall of the coal dropping pipe 101a in the conveying process, the blockage cleaning assembly 102 is periodically opened, and compressed air is output to clean the coal adhered to the inner wall of the coal dropping pipe 101 a.
The pressure relief module 200, the pressure relief module 200 includes air intake component 201, pressure relief component 202 and elasticity seal assembly 203, air intake component 201 respectively with pressure relief component 202 and elasticity seal assembly 203 swing joint, air intake component 201 includes communicating pipe 201b, air intake component 201 communicates with the gas storage chamber 102a through communicating pipe 201 b.
When cleaning operation is carried out through compressed air, under some conditions, more coal adheres to the coal dropping pipe 101a, so that the compressed air is not smooth in circulation, air cannot be discharged in time, external compressed air continuously enters the compressed air bottle, the compressed air bottle is prone to overpressure, and potential safety hazards exist.
Through the communication of air inlet assembly 201 and gas storage bin 102a, when the overpressure phenomenon occurs, compressed air drives elastic sealing assembly 203 to move integrally, and clamping sealing assembly 204 is opened through pressure relief assembly 202, so that redundant compressed air is discharged, and pressure relief is completed.
The linkage module 300 comprises a pushing component 301, a linkage component 302 and a transmission component 303, wherein the linkage component 302 is movably connected with the pushing component 301 and the transmission component 303 respectively.
In the pressure relief process, the discharged compressed air drives the pushing component 301 to operate, the linkage component 302 is started through the pushing component 301, so that the transmission component 303 is started, the first control valve 102f is closed, the input amount of the external compressed air is reduced, the air pressure in the air storage bin 102a falls back quickly, and the overpressure phenomenon is avoided.
The pipeline assembly 101 comprises a coal dropping pipe 101a, an electric door 101b, a connecting pipe 101c and an annular air pipe 101d, one end of the coal dropping pipe 101a is communicated with the connecting pipe 101c through the electric door 101b, the other end of the coal dropping pipe 101a is connected with a flange 101f, the annular air pipe 101d is sleeved on the surface of the coal dropping pipe 101a, the inner side of the annular air pipe 101d is communicated with an injection pipe 101e, and one end of the injection pipe 101e is communicated with the coal dropping pipe 101 a.
Through the setting of electrically operated gate 101b, can make in the clear stifled operation, the one end of coal breakage pipe 101a is sealed, avoids the air current to flow to unfixed, influences the clearance effect, and electrically operated gate 101b one end is connected with raw coal bunker feeding device.
The blockage clearing component 102 comprises a first air pipe 102b, a second air pipe 102c and a second control valve 102d, one end of the second air pipe 102c is communicated with the first air pipe 102b, the other end of the second air pipe 102c is communicated with the annular air pipe 101d, one end of the first air pipe 102b is communicated with the air storage bin 102a, the second control valve 102d is arranged on the outer wall of the first air pipe 102b, one end of the air storage bin 102a is communicated with a pressure increasing pipe 102e, one end of the pressure increasing pipe 102e is communicated with a pressure increasing pump, and one end of the compressed air pipe 102g is communicated with an external compressed air source, so that power can be supplied to cleaning operation in real time.
During the blockage cleaning operation, the user opens the second control valve 102d, so that the compressed air in the gas storage bin 102a enters the annular gas pipe 101d through the first gas pipe 102b and the second gas pipe 102c, and finally enters the coal dropping pipe 101a through the injection pipe 101e, thereby performing the injection cleaning operation.
Example 2
Referring to fig. 1 to 5, a second embodiment of the present invention is based on the above embodiment.
The air inlet assembly 201 comprises an air inlet bin 201a, a piston 201c and a first spring 201d, wherein one end of the communication conduit 201b is communicated with the air inlet bin 201a, one end of the first spring 201d is connected with the air inlet bin 201a, and the other end of the first spring 201d is connected with the piston 201 c.
In the cleaning operation, when the coal dropping pipe 101a is seriously blocked, air is not smoothly discharged, the air storage bin 102a has overpressure phenomenon, the air storage bin 102a is communicated with the air inlet bin 201a through the communicating conduit 201b, when the air inlet bin 201a has overpressure, the piston 201c is lifted through the pressure of compressed air, the first spring 201d is stretched to generate deformation, and the piston 201c is lifted through the pressure of the air, so that the elastic sealing component 203 and the clamping sealing component 204 positioned on the surface of the piston 201c are integrally displaced.
The pressure relief assembly 202 comprises a sealing sleeve 202a, a push rod 202b and a sealing cover 202c, one end of each of the sealing sleeve 202a and the push rod 202b is connected with the sealing cover 202c, one end of the sealing cover 202c is fixedly connected with the air inlet bin 201a, and the outer wall of the sealing sleeve 202a is communicated with a pressure relief pipe 202 d.
The elastic sealing assembly 203 comprises a guide pillar 203a, an air inlet 203b, a loop bar 203c and a second spring 203d, one end of the guide pillar 203a is connected with the piston 201c, the air inlet 203b is arranged at the bottom of the inner wall of the guide pillar 203a, one end of the loop bar 203c is fixedly connected with the inner wall of the guide pillar 203a, one end of the second spring 203d is fixedly connected with the loop bar 203c, the other end of the second spring 203d is connected with a limiting rod 203e, the top of the limiting rod 203e penetrates through to the outer side of the loop bar 203c, and an air outlet 203g is formed in the top of the guide pillar 203 a.
The outer wall of the guide post 203a is connected with the inner wall of the sealing sleeve 202a in a sliding mode, when the guide post 203a ascends, the sealing plug 204c located in the inner cavity of the guide post is in contact with the ejector rod 202b, the ascending displacement of the guide post 203a continues, the ejector rod 202b is fixedly installed, the sealing plug 204c is stressed to move, the sealing rubber plate 204b is driven to move through the movement of the sealing plug 204c, the sealing effect of the sealing rubber plate 204b and the annular convex ring 204d is relieved, compressed air is discharged into the inner cavity of the sealing sleeve 202a through the air inlet 203b and the air outlet 203g, and finally the compressed air is discharged through the pressure relief pipe 202d to achieve pressure relief.
The pressure relief module 200 further comprises a clamping sealing assembly 204, the clamping sealing assembly 204 comprises a circular plate 204a, a sealing rubber plate 204b, a sealing plug 204c and an annular convex ring 204d, two ends of the circular plate 204a are respectively connected with a limiting rod 203e and the sealing rubber plate 204b, one ends of the sealing plug 204c and the annular convex ring 204d are both connected with the sealing rubber plate 204b, an annular groove 203f matched with the annular convex ring 204d for use is formed in the inner wall of the guide pillar 203a, the sealing effect is better through matching of the annular convex ring 204d and the annular groove 203f, the phenomenon of leakage under the normal-pressure use condition is avoided, the outer wall of the sealing plug 204c is meshed with the inner wall of the air outlet 203g, the tolerance matching relationship between the outer wall and the inner wall is transition fit, and the precise transmission of equipment is prevented from being influenced by clamping stagnation and abrasion of the sealing plug 204c in the stress displacement process.
Example 3
Referring to fig. 1 and 2, a third embodiment of the present invention is based on the above two embodiments.
The pushing assembly 301 comprises a third spring 301b and a sealing push plate 301c, the third spring 301b and the sealing push plate 301c are both arranged in an inner cavity of the sealing bin 301a, two ends of the third spring 301b are respectively connected with the sealing bin 301a and the sealing push plate 301c, the bottom of the sealing bin 301a is fixedly connected with the gas storage bin 102a, and the outer wall of the sealing bin 301a is communicated with a pressure relief discharge pipe 301 d.
The excess compressed air is discharged into the capsule 301a through the pressure relief pipe 202d, the air pressure in the capsule 301a is increased, the pressure of the compressed air displaces the seal push plate 301c, and the displacement of the seal push plate 301c causes the third spring 301b to be stretched.
The linkage assembly 302 comprises a toothed plate 302a, a supporting rod 302b, a pulley 302c and a driving gear 302d, one end of the toothed plate 302a is connected with a sealing push plate 301c, the surface of the toothed plate 302a is meshed with the driving gear 302d, one end of the supporting rod 302b is fixedly connected with the toothed plate 302a, one end of the pulley 302c is connected with the supporting rod 302b, the bottom of the pulley 302c is connected with the bottom of the inner wall of the sealing bin 301a in a sliding manner, the toothed plate 302a can be effectively supported through the arrangement of the supporting rod 302b and the pulley 302c, the phenomenon that the toothed plate 302a shakes and deviates in the forced moving process is avoided, and accurate and stable transmission of the toothed plate 302a is ensured.
The sealing push plate 301c moves to drive the toothed plate 302a to move, the toothed plate 302a moves to drive the driving gear 302d to rotate, and the driving gear 302d rotates to drive the rotating rod 303a to rotate.
When the sealing push plate 301c is pressed to move, the end face of the sealing push plate moves to be in contact with the end face of the pressure relief exhaust pipe 301d, a gap is formed between the sealing push plate and the pressure relief exhaust pipe 301c, and redundant compressed air is exhausted along the pressure relief exhaust pipe 301d to achieve pressure relief.
The transmission assembly 303 further comprises a rotating rod 303a, a driving gear 303b and a transmission chain 303c, wherein the outer wall of the rotating rod 303a is fixedly connected with the inner wall of the driving gear 302d, two ends of the rotating rod 303a are movably connected with the inner wall of the sealing bin 301a, the driving gear 303b is arranged on the outer wall of the rotating rod 303a, one end of the inner ring of the transmission chain 303c is meshed with the driving gear 303b, and the other end of the inner ring of the transmission chain 303c is meshed with the driven gear 303 d.
The driving gear 303b and the transmission chain 303c are driven to rotate by the rotation of the rotating rod 303a, the driven gear 303d is driven to rotate by the rotation of the transmission chain 303c, and the traction rod 303e is driven to rotate by the rotation of the driven gear 303d, so that the first control valve 102f is closed, the air input quantity is reduced, and the overpressure state in the air storage bin 102a is better controlled.
After the pressure relief operation is finished, the equipment is reset through energy storage when the plurality of groups of springs are stressed and deformed, and therefore one-time automatic pressure relief operation is finished.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a thermal power plant's coal breakage pipe prevents that sticky coal cleans device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the coal dropping pipeline module (100) comprises a pipeline assembly (101) and a blockage clearing assembly (102), the pipeline assembly (101) is movably connected with the blockage clearing assembly (102), and the blockage clearing assembly (102) comprises a gas storage bin (102 a), a compressed air pipe (102 g) and a first control valve (102 f); and the number of the first and second groups,
the pressure relief module (200), the pressure relief module (200) comprises an air inlet component (201), a pressure relief component (202) and an elastic sealing component (203), the air inlet component (201) is movably connected with the pressure relief component (202) and the elastic sealing component (203) respectively, the air inlet component (201) comprises a communicating conduit (201 b), and the air inlet component (201) is communicated with the air storage bin (102 a) through the communicating conduit (201 b); and the number of the first and second groups,
the linkage module (300) comprises a pushing assembly (301), a linkage assembly (302) and a transmission assembly (303), wherein the linkage assembly (302) is movably connected with the pushing assembly (301) and the transmission assembly (303) respectively;
the pressure relief assembly (202) comprises a pressure relief pipe (202 d);
the pushing assembly (301) comprises a sealing bin (301 a), and one end of the pressure relief pipe (202 d) is communicated with the sealing bin (301 a);
the transmission assembly (303) comprises a driven gear (303 d) and a traction rod (303 e), one end of the traction rod (303 e) is fixedly connected with the driven gear (303 d), and the other end of the traction rod (303 e) is fixedly connected with the control end of the first control valve (102 f).
2. The thermal power plant coal chute blockage preventing device as recited in claim 1, wherein: the pipeline component (101) comprises a coal dropping pipe (101 a), an electric door (101 b), a connecting pipe (101 c) and an annular air pipe (101 d), one end of the coal dropping pipe (101 a) is communicated with the connecting pipe (101 c) through the electric door (101 b), the other end of the coal dropping pipe (101 a) is connected with a flange (101 f), the annular air pipe (101 d) is sleeved on the surface of the coal dropping pipe (101 a), the inner side of the annular air pipe (101 d) is communicated with an injection pipe (101 e), and one end of the injection pipe (101 e) is communicated with the coal dropping pipe (101 a).
3. The thermal power plant coal chute blockage preventing device as recited in claim 2, wherein: the blockage clearing assembly (102) comprises a first air pipe (102 b), a second air pipe (102 c) and a second control valve (102 d), one end of the second air pipe (102 c) is communicated with the first air pipe (102 b), the other end of the second air pipe (102 c) is communicated with an annular air pipe (101 d), one end of the first air pipe (102 b) is communicated with an air storage bin (102 a), the second control valve (102 d) is arranged on the outer wall of the first air pipe (102 b), and one end of the air storage bin (102 a) is communicated with a pressure increasing pipe (102 e).
4. The thermal power plant coal chute blockage preventing device as defined in any one of claims 1 to 3, wherein: the air inlet assembly (201) comprises an air inlet bin (201 a), a piston (201 c) and a first spring (201 d), one end of the communication conduit (201 b) is communicated with the air inlet bin (201 a), one end of the first spring (201 d) is connected with the air inlet bin (201 a), and the other end of the first spring (201 d) is connected with the piston (201 c).
5. The device for preventing coal from being blocked in a coal chute of a thermal power plant as claimed in claim 4, wherein: the pressure relief assembly (202) comprises a sealing sleeve (202 a), a push rod (202 b) and a sealing cover (202 c), one end of the sealing sleeve (202 a) and one end of the push rod (202 b) are both connected with the sealing cover (202 c), one end of the sealing cover (202 c) is fixedly connected with the air inlet bin (201 a), and the outer wall of the sealing sleeve (202 a) is communicated with the pressure relief pipe (202 d).
6. The thermal power plant coal chute blockage preventing device as recited in claim 5, wherein: the elastic sealing assembly (203) comprises a guide post (203 a), an air inlet (203 b), a sleeve rod (203 c) and a second spring (203 d), one end of the guide post (203 a) is connected with a piston (201 c), the air inlet (203 b) is arranged at the bottom of the inner wall of the guide post (203 a), one end of the sleeve rod (203 c) is fixedly connected with the inner wall of the guide post (203 a), one end of the second spring (203 d) is fixedly connected with the sleeve rod (203 c), the other end of the second spring (203 d) is connected with a limiting rod (203 e), the top of the limiting rod (203 e) penetrates through the outer side of the sleeve rod (203 c), and an air outlet (203 g) is formed in the top of the guide post (203 a).
7. The thermal power plant coal chute blockage preventing device as recited in claim 6, wherein: the pressure relief module (200) further comprises a clamping sealing assembly (204), the clamping sealing assembly (204) comprises a circular plate (204 a), a sealing rubber plate (204 b), a sealing plug (204 c) and an annular convex ring (204 d), two ends of the circular plate (204 a) are respectively connected with a limiting rod (203 e) and the sealing rubber plate (204 b), one ends of the sealing plug (204 c) and the annular convex ring (204 d) are respectively connected with the sealing rubber plate (204 b), an annular groove (203 f) matched with the annular convex ring (204 d) for use is formed in the inner wall of the guide pillar (203 a), and the outer wall of the sealing plug (204 c) is meshed with the inner wall of the air outlet (203 g).
8. The device for preventing coal from being blocked in a coal chute of a thermal power plant as claimed in claim 7, wherein: promote subassembly (301) and include third spring (301 b) and sealed push pedal (301 c), third spring (301 b) and sealed push pedal (301 c) all set up in the inner chamber of seal chamber (301 a), the both ends of third spring (301 b) are connected with seal chamber (301 a) and sealed push pedal (301 c) respectively, the bottom and the gas storage storehouse (102 a) fixed connection of seal chamber (301 a), the outer wall intercommunication of seal chamber (301 a) has pressure release discharge pipe (301 d).
9. The thermal power plant coal chute blockage preventing device as recited in claim 8, wherein: linkage subassembly (302) includes pinion rack (302 a), vaulting pole (302 b), pulley (302 c) and drive gear (302 d), the one end and the sealed push pedal (301 c) of pinion rack (302 a) are connected, the surface and the meshing of drive gear (302 d) of pinion rack (302 a), the one end and pinion rack (302 a) fixed connection of vaulting pole (302 b), the one end and the vaulting pole (302 b) of pulley (302 c) are connected, the bottom and the bottom sliding connection of sealed storehouse (301 a) inner wall of pulley (302 c).
10. The thermal power plant coal chute blockage preventing device as recited in claim 9, wherein: drive assembly (303) still include rotary rod (303 a), driving gear (303 b) and driving chain (303 c), the outer wall of rotary rod (303 a) and the inner wall fixed connection of drive gear (302 d), the both ends of rotary rod (303 a) all with the inner wall swing joint of sealed storehouse (301 a), driving gear (303 b) set up in the outer wall of rotary rod (303 a), the one end and the driving gear (303 b) meshing of driving chain (303 c) inner circle, the other end and driven gear (303 d) meshing of driving chain (303 c) inner circle.
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| CN202210697966.XA CN114988057B (en) | 2022-06-20 | 2022-06-20 | Anti-sticking coal-cleaning device for coal dropping pipe of thermal power plant |
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| CN114988057B (en) | 2024-01-30 |
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