CN213355595U - Clear stifled device of thermal power factory feed bin - Google Patents

Abstract

The utility model relates to a thermal power factory feed bin unblock device, include silo and the fluffy coal that is located silo inner chamber bottom, including installing in silo import department single-column adjustable portal frame, install assembly pulley one on the single-column adjustable portal frame, silo top one side fixed mounting has electric hoist, electric hoist's output is connected with wire rope's one end, wire rope's the other end walks around assembly pulley one, and be connected with the hanging flower basket platform, silo top opposite side installs high-pressure plunger pump, high-pressure plunger pump is connected with the squirt through metal collapsible tube, still include safety rope and safety lock, through detachable portal frame and electric hoist, adopt the electronic lifting hanging flower basket to go up and out, eliminate the fluffy coal and collapse the risk of burying to the operation personnel; the one-time cleaning operation area is large, labor force is released, operation efficiency is improved, the two schemes are beneficial for operators to escape rapidly, the operation environment in the bin is monitored remotely in real time, and safety risks are monitored dynamically.

Description

Clear stifled device of thermal power factory feed bin

Technical Field

The utility model relates to an electric power technical field specifically is a clear stifled device of thermal power factory feed bin.

Background

Since 2012, along with the change of supply and demand situations of coal markets, the price of electric coal is high all the way, the operation pressure of a thermal power plant is continuously increased, coal blending combustion gradually becomes a great legal treasure for reducing fuel cost of each thermal power plant, and the purchase proportion of mixed coal, poor lean coal and even coal slime is continuously increased. The coal slime has the characteristics of fine granularity, high particle content, strong water retention, high water content, high viscosity and the like, is difficult to stack, store and convey, runs off when meeting water, flies when being dried in the air, is generally placed in an open coal yard or a dry coal shed for airing, and is conveyed to a boiler through a belt conveyor to burn and generate power after being semi-dried. However, the coal slurry airing and half-drying process is difficult to grasp, and in addition, the fuel supply is tense in certain time periods, the phenomenon that the coal slurry is not aired in place and needs to be sent into a boiler occurs sometimes, when the coal slurry fluidity is too poor, if the time control is not good, the coal slurry can be hardened in a coal blending link when entering a silo, the phenomena of coal blockage, coal fluffing and hole digging occur at the discharge opening of the silo or even at a higher part, the coal cannot be taken out by a disc coal feeder, the coal blending and coal feeding operation of a generator set is influenced, and the coal feeding interruption is even caused in serious cases.

After the silo, the raw coal bin and the like are filled with coal, the mechanical vibrator, the air cannon, the sledge hammer and other means are used for assisting in dredging the coal, if the means cannot work, the coal needs to enter the silo for manual dredging. The safety and the economical efficiency of the unit are directly influenced by the manual dredging efficiency, the manual dredging of the fluffy coal is carried out in a limited space such as a silo or a raw coal bin, the operation per se has great safety risks, and in recent years, the accidents of human death such as burying and suffocation are caused by insufficient safety measures in the manual dredging process of the fluffy coal.

Therefore, the existing bin blockage removal has the following defects:

1. coal poking operators stand on the common coal pile or even the lower part of the coal pile to poke coal, the operation space is narrow, and the accident of burying is easily caused by the collapse of fluffy coal.

2. The fluffy coal is cleaned by using a poking bar or compressed air, the one-time cleaning operation surface is small, the labor intensity is high, the working efficiency is low, and the operation time is long.

3. The dust is serious in the operation process, and the damage to the body of an operator is large.

4. The escape passage is narrow in space, collapse and vibration of the fluffy coal can affect the structural force of other areas of the fluffy coal, the fluffy coal in adjacent areas can fall off, the large-area fluffy coal is not suitable for cleaning, and the escape process depends on the psychological quality, the psychological quality and the flexibility of limbs of operators.

5. The safety risk in the coal poking operation process is observed and identified in a close range by operators and guardians entering the silo, and the guardians at the other stations outside the silo play a very limited role.

Disclosure of Invention

An object of the utility model is to provide a clear stifled device of thermal power factory feed bin to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a thermal power factory feed bin unblock device, includes silo and the fluffy coal that is located silo inner chamber bottom, is including installing in the adjustable portal frame of silo import department single-column, install assembly pulley one on the adjustable portal frame of single-column, silo top one side fixed mounting has electric hoist, electric hoist's output is connected with wire rope's one end, wire rope's the other end is walked around assembly pulley one to be connected with the hanging flower basket platform, high-pressure plunger pump is installed to silo top opposite side, high-pressure plunger pump is connected with the squirt through metal collapsible tube, still includes the safety rope, the one end of safety rope is fixed outside the silo, the other end of safety rope is through the safe hasp of assembly pulley two back system, the safety hasp is connected on the safety belt on one's body of operation.

Preferably, the single-upright-column adjustable portal frame comprises upright columns and cross arms, the upright columns are composed of a plurality of sections of steel pipes, adjacent steel pipes are connected through flanges, the steel pipes are DN100 steel pipes, and the length of each section of steel pipe is not more than 2 meters; the cross arm comprises two channel steels, the back parts of web plates of the two channel steels are welded, a steel wire rope lifting channel is reserved between the two channel steels, and a plurality of positioning holes are formed in the surfaces of the channel steels; the first pulley block comprises two fixed pulleys, one fixed pulley is fixed at the tail end of the cross arm through a positioning hole, and the other fixed pulley is installed on the positioning hole far away from the tail end of the cross arm.

Preferably, the hanging flower basket platform is including dismantling the bottom plate and the four curb plates of connection, pass through high strength bolt connection between bottom plate and the four curb plates, be equipped with the stopping preparation cap on the high strength bolt, the size of hanging flower basket platform is 120x120x50 centimetres.

Preferably, the high-pressure plunger pump is an MS45 high-pressure plunger pump, the high-pressure plunger pump is provided with an outlet regulating valve, the maximum outlet pressure of the high-pressure plunger pump is 19MPa, the working pressure of the high-pressure plunger pump is 5-15 MPa, the flow rate of the high-pressure plunger pump is 212L/min, and a pump head discharge end of the high-pressure plunger pump is provided with a pressure regulating device, a one-way overflow valve and a safety valve; the metal hose is a high-pressure metal hose with the inner diameter of 10 mm and the design pressure of 30 MPa; the water gun is a handheld closed overflow high-pressure water gun and is made of a stainless steel pipe, and the design pressure of the water gun is 150 MPa.

Preferably, still include wireless high definition cloud platform camera and matched with monitored control system, wireless high definition cloud platform camera is installed on the hanging flower basket platform, wireless cloud platform camera is connected with outside monitored control system. The wireless high definition cloud platform camera is located rail and the lead wire cable one side of hanging flower basket platform, the power of wireless high definition cloud platform camera draws from lighting power and connects the 220V power, the video monitoring signal transmission of wireless high definition cloud platform camera is to near receiving terminal to insert the video monitoring platform through the intranet.

Preferably, still include head-mounted record appearance, head-mounted record appearance includes helmet body, be equipped with LED lamp and big wide angle camera on the helmet body, the video monitoring signal of big wide angle camera passes through helmet body's built-in wireless transceiver wireless transmission to silo outside guardian's cell-phone and video monitoring platform.

Preferably, the system further comprises a high-power interphone worn on the operator.

Preferably, a four-in-one gas detector is mounted on the hanging basket platform.

Compared with the prior art, the beneficial effects of the utility model are that:

1) this thermal power factory feed bin unblock device through detachable portal frame and electric hoist engine, adopts the enterprising of electronic promotion hanging flower basket to go up out, eliminates fluffy coal and collapses the risk of burying to the operating personnel.

2) This thermal power factory feed bin unblock device adopts high-pressure plunger pump to pass through metal collapsible tube and squirt blowout high pressure water source, disclose coal work, and operating pressure is high, and it is big to once clear up the operation face, has released the labour, has improved the operating efficiency, discloses open the position and has been soaked by the high pressure water, effectively restraines the raise dust, improves the operation environment.

3) This thermal power factory feed bin clear stifled device, personnel are higher than the operation in the hanging flower basket more than fluffy coal face, and the safety belt hangs on the safety rope independent of hanging flower basket lifting rope, when taking place the collapse of large tracts of land fluffy coal, flee for one's life rapidly through an electric hoist and assembly pulley helping hand operation personnel.

4) This clear stifled device of thermal power factory feed bin adopts 4G electric power to patrol and examine real-time portable head-mounted safety helmet high definition record appearance + network high definition cloud platform camera technique, and outside guardianship personnel are under the condition that does not disturb the normal operation of operation personnel, remote real-time supervision operation environment in the storehouse, dynamic monitoring safety risk.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the single-column adjustable portal frame of the present invention;

FIG. 3 is a schematic structural view of the basket platform of the present invention;

fig. 4 is a schematic structural view of the helmet-type recorder of the present invention;

fig. 5 is a schematic diagram of the control of the electric hoist of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1 metal hose, 2 single-upright adjustable portal frames, 201 uprights, 202 cross arms, 203 steel pipes, 204 flanges, 205 channel steel, 206 steel wire rope lifting channels, 207 positioning holes, 3 safety ropes, 4 electric winches, 5 silos, 6 hanging basket platforms, 601 bottom plates, 602 side plates, 603 high-strength bolts, 7 fluffy coal, 8 pulley block I, 801 fixed pulleys, 9 steel wires, 10 pulley block II, 11 safety latches, 12 high-pressure plunger pumps, 13 water guns, 14 wireless high-definition pan-tilt cameras, 15 helmet bodies, 16LED lamps, 17 large wide-angle cameras and 18 four-in-one gas detectors.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a thermal power factory feed bin unblock device, including silo 5 and the fluffy coal 7 that is located silo 5 inner chamber bottom, including installing in silo 5 import department single-upright-column adjustable portal frame 2, install assembly pulley 8 on the single-upright-column adjustable portal frame 2, silo 5 top one side fixed mounting has electric hoist 4, electric hoist 4's output is connected with the one end of wire rope 9, the other end of wire rope 9 walks around assembly pulley 8, and be connected with hanging flower basket platform 6, silo 5 top opposite side installs high-pressure plunger pump 12, high-pressure plunger pump 12 is connected with squirt 13 through metal collapsible tube 1, still include safety rope 3, the one end of safety rope 3 is fixed outside silo 5, safety catch 11 is tied to the other end of safety rope 3 behind assembly pulley two 10, safety catch 11 is connected on the safety belt on the operation personnel's body.

In one embodiment: referring to fig. 2, the single-column adjustable portal frame 2 comprises a column 201 and a cross arm 202, wherein the column 201 is composed of a plurality of sections of steel pipes 203, the adjacent steel pipes 203 are connected through flanges 204, the steel pipes 203 are DN100 steel pipes, the length of each section of steel pipe 203 is not more than 2 meters, the portal frame can be conveniently transported in an area without lifting equipment, two workers can carry the portal frame, and meanwhile, the height of the portal frame can be adjusted according to the field operation space. The cross arm 202 comprises two channel steels 205, the backs of web plates of the two channel steels 205 are welded, a steel wire rope lifting channel 206 is reserved between the two channel steels 205, and a plurality of positioning holes 207 are formed in the surfaces of the channel steels 205; the pulley block I8 mounting position adjusting device is used for adjusting the mounting position of the pulley block I8, when the diameter of the silo 5 is large, the position of a pulley is adjusted to adjust an operation positioning point of a worker, and after the position of the pulley is determined, the pulley is fixed through a positioning bolt to prevent the pulley from displacing in the operation process. The first pulley block 8 comprises two fixed pulleys 801, wherein one fixed pulley 801 is fixed at the tail end of the cross arm 202 through the positioning hole 207, and the other fixed pulley 801 is installed on the positioning hole 207 far away from the tail end of the cross arm 202 and is fixed at different positions along with the movement of the operating point position, so that the falling position of the hanging basket is changed.

In one embodiment: referring to fig. 3, the basket platform 6 includes a bottom plate 601 and four side plates 602 which are detachably connected, the bottom plate 601 and the four side plates 602 are connected through high-strength bolts 603, the high-strength bolts 603 are provided with backstop caps, and the size of the basket platform 6 is 120x120x50 cm.

In one embodiment: referring to fig. 1, the high-pressure plunger pump 12 is an MS45 high-pressure plunger pump, the high-pressure plunger pump is provided with an outlet regulating valve, the maximum outlet pressure of the high-pressure plunger pump 12 is 19MPa, the working pressure is 5-15 MPa, the flow rate is 212L/min, and the discharge end of the pump head of the high-pressure plunger pump is provided with a pressure regulating device, a one-way overflow valve and a safety valve; the metal hose 1 is a high-pressure metal hose with the inner diameter of 10 mm and the design pressure of 30 MPa; the water gun is a hand-held closed overflow high-pressure water gun, is made of a stainless steel pipe, and has the design pressure of 150 MPa. Light weight, high compression strength, convenient use, simple structure and easy repair. High-pressure water columns output by the high-pressure plunger pump 12 are used for flushing coal seams in the silo 5 and the joint of the coal seams and the silo wall of the silo 5, and the fluffy coal is collapsed by destroying the fluffy coal structure of the silo 5.

In one embodiment: referring to fig. 1, the wireless high-definition cradle head monitoring system further comprises a wireless high-definition cradle head camera 14 and a monitoring system matched with the wireless high-definition cradle head camera 14, wherein the wireless high-definition cradle head camera 14 is installed on the cradle platform 6, and the wireless cradle head camera 14 is connected with an external monitoring system. The wireless high-definition cradle head camera 14 is located on one side of a fence and a lead cable of the hanging basket platform 6, a power supply of the wireless high-definition cradle head camera 14 is connected with a 220V power supply through a lighting power supply in a leading mode, a video monitoring signal of the wireless high-definition cradle head camera 14 is transmitted to a receiving terminal nearby, the video monitoring platform is connected in through an internal network, the cradle head can be operated to rotate remotely and locally, under the condition that normal operation of operating personnel is not interfered, the operation environment in a silo is observed in an all-round mode, and the dynamic change condition of safety risks is identified.

In one embodiment: referring to fig. 4, the helmet-type recorder further comprises a helmet-type recorder, the helmet-type recorder comprises a helmet body 15, an LED lamp 16 and a large wide-angle camera 17 are arranged on the helmet body, the field operation condition of an operation surface right in front of an operator is monitored in real time, a video monitoring signal of the large wide-angle camera 17 is wirelessly transmitted to a mobile phone and a video monitoring platform of a guardian outside the silo 5 through a built-in wireless transceiver of the helmet body 15, all real-time operation pictures of the operator are shot and recorded through a safety helmet and then transmitted to the computer video monitoring platform, the operation environment of the operation surface right in front of each operator can be called at any time through the video monitoring platform, and operation risks are comprehensively judged.

In one embodiment: the high-power interphone is worn on an operator, communication inside and outside the silo is kept smooth through a fixed channel, and the operation position is adjusted timely.

In one embodiment: referring to fig. 1, a four-in-one gas detector 18 is mounted on the hanging basket platform 6, and the concentration of oxygen, carbon monoxide and hydrogen sulfide gas in the silo is measured every 4 hours, so that 'ventilation, detection and post-operation' are realized.

The utility model discloses an automatically controlled high-speed hoist engine, three-phase four-wire system, according to 5 limited space interior operating personnel of silo no longer than 2 people carry out the accounting, permanent load and variable load total amount < 500kg choose for use JK1 ton hoist engine, hoisting speed control is at 22m/min, wire rope specification 6 19-9.3, and the silo height is about 30m, chooses for use wire rope length 70 m. The electric winch 4 is connected with an external winch control loop, the winch control loop comprises an electric remote control start-stop, an electric manual start-stop and emergency stop control loop, and the winch control loop is arranged in an external control box. In the normal coal blockage cleaning process, the hanging basket is controlled to lift by an operator in the silo to hold a remote controller, and can also be manually started and stopped by a guardian outside the silo through a wireless intercom system through a control box button, when the remote control and manual operation are invalid, the power switch is turned off, so that the power-off parking is realized, and unsafe events are effectively avoided. As shown in fig. 5.

When the danger occurs, the operating personnel can select two sets of relatively independent safe escape schemes:

firstly, an electric winch is adopted for lifting, and after an abnormality is found or occurs in the operation process, an operator or an outside bin operates the winch to quickly lift the winch, so that a dangerous area is quickly realized;

and secondly, a manual lifting mode is adopted, the lifting device is composed of a pulley block II 10 independent of a lifting system and a safety rope 3, one end of the safety rope 3 is fixed on a nearby firm component, the other end of the safety rope is tied with a safety lock catch 11 through the pulley block II 10, and an operation personnel safety belt is hung on the safety lock catch 11 and plays a role in buffering in the personnel falling process. After the abnormity is found or generated in the operation process and the first set of system is invalid, the second set of escape system is started by the guardian outside the warehouse, and the operator is quickly lifted out of the warehouse through the safety rope.

The high-pressure plunger pump 12 is provided with a control loop, the control loop comprises a delay automatic stop, an automatic power-off protection, a pipeline water leakage protection, a water shortage protection and a motor overheating protection, the control loop is arranged in an external control box, the operation is convenient, the control is easy, the safety and the reliability are realized, and a specially-assigned person is arranged to monitor parameters such as pressure, liquid level and the like in place during the use. The pressure regulating device, the one-way overflow valve and the safety valve are arranged at the discharge end of the pump head, when the pressure regulating valve of the high-pressure cleaning machine fails, the safety valve can timely release pressure, so that other parts of equipment are prevented from being damaged by overpressure, and the equipment is protected from being damaged and the safety of personnel.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (8)

1. A thermal power plant bin blockage clearing device comprises a silo (5) and fluffy coal (7) positioned at the bottom of an inner cavity of the silo (5), and is characterized by comprising a single-upright-column adjustable portal frame (2) arranged at an inlet of the silo (5), wherein a first pulley block (8) is arranged on the single-upright-column adjustable portal frame (2), an electric winch (4) is fixedly arranged on one side of the top of the silo (5), the output end of the electric winch (4) is connected with one end of a steel wire rope (9), the other end of the steel wire rope (9) bypasses the first pulley block (8) and is connected with a hanging basket platform (6), a high-pressure plunger pump (12) is arranged on the other side of the top of the silo (5), the high-pressure plunger pump (12) is connected with a water gun (13) through a metal hose (1), and further comprises a safety rope (3), one end of the safety rope (3), the other end of the safety rope (3) is tied with a safety lock catch (11) through a pulley block II (10), and the safety lock catch (11) is connected with a safety belt on the body of an operator.

2. The blockage removing device for the storage bin of the thermal power plant according to claim 1, wherein the single-column adjustable portal frame (2) comprises columns (201) and cross arms (202), the columns (201) are formed by a plurality of sections of steel pipes (203), the adjacent steel pipes (203) are connected through flanges (204), the steel pipes (203) are DN100 steel pipes, and the length of each section of steel pipe (203) is not more than 2 meters; the cross arm (202) comprises two channel steels (205), the backs of web plates of the two channel steels (205) are welded, a steel wire rope lifting channel (206) is reserved between the two channel steels (205), and a plurality of positioning holes (207) are formed in the surface of each channel steel (205); the pulley block I (8) comprises two fixed pulleys (801), one fixed pulley (801) is fixed at the tail end of the cross arm (202) through a positioning hole (207), and the other fixed pulley (801) is installed on the positioning hole (207) far away from the tail end of the cross arm (202).

3. The bunker dredging device for the thermal power plant according to claim 1, wherein the basket platform (6) comprises a bottom plate (601) and four side plates (602) which are detachably connected, and the bottom plate (601) and the four side plates (602) are connected through high-strength bolts (603).

4. The blockage removing device for the storage bin of the thermal power plant as claimed in claim 1, wherein the high-pressure plunger pump (12) adopts an MS45 high-pressure plunger pump, and the metal hose (1) adopts a high-pressure metal hose with an inner diameter of 10 mm and a design pressure of 30 MPa; the water gun is a handheld closed overflow high-pressure water gun and is made of a stainless steel pipe, and the design pressure of the water gun is 150 MPa.

5. The thermal power plant storage bin blockage removing device according to claim 1, further comprising a wireless high-definition cradle head camera (14) and a monitoring system matched with the wireless high-definition cradle head camera (14), wherein the wireless high-definition cradle head camera (14) is installed on the hanging basket platform (6), and the wireless high-definition cradle head camera (14) is connected with an external monitoring system.

6. The thermal power plant storage bin blockage clearing device according to claim 1, further comprising a helmet-type recorder, wherein the helmet-type recorder comprises a helmet body (15), an LED lamp (16) and a large wide-angle camera (17) are arranged on the helmet body, and a video monitoring signal of the large wide-angle camera (17) is wirelessly transmitted to a mobile phone and a video monitoring platform of a guardian outside the storage bin (5) through a built-in wireless transceiver of the helmet body (15).

7. The blockage removing device for the storage bin of the thermal power plant as claimed in claim 1, further comprising an interphone worn on an operator.

8. The blockage removing device for the storage bin of the thermal power plant as claimed in claim 1, wherein a four-in-one gas detector (18) is mounted on the hanging basket platform (6).

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