KR101866325B1

KR101866325B1 - Arch type adhered powder material breaking system

Info

Publication number: KR101866325B1
Application number: KR1020170030348A
Authority: KR
Inventors: 이용길
Original assignee: 이용길
Priority date: 2017-03-10
Filing date: 2017-03-10
Publication date: 2018-06-11

Abstract

The present invention comprises at least one powder material reservoir (10) for forming a plurality of pores and storing a powdered material; An ultrasonic sensor (60) installed in the powder material reservoir (10) and detecting whether the powder material flowing in the powder material reservoir (10) is clogged due to crosslinking fixation on the inner wall of the reservoir; A hammer housing 22 provided on the outer surface of the powder material reservoir 10 through the holes and including a hammer 23 and a plurality of air nozzles 30N, And a plurality of air nozzles (30N, 31N, 32N, 33N) for crushing the powdery material adhered thereto, 20); And a control unit (70) installed outdoors to control the operation of the powder material grinding and hydraulic apparatus (20).

Description

TECHNICAL FIELD [0001] The present invention relates to a grinding system,

Hereinafter, the background art will be described with reference to the accompanying drawings.

Generally, the powder material of coal, limestone, grain, or food is stored inside a funnel-type reservoir configured to draw the powder material downward. The particle characteristics of the stored powder material, the inclination angle of the reservoir trough, the relative humidity inside and outside of the funnel- , The relative temperature, and the coefficient of friction depending on the material of the storage tank. In the case of the funnel-type storage tank, when a certain period of time elapses, the powder material is withdrawn from the powder material or between the powder material and the inner wall of the storage vessel, Resulting in poor production. That is, clogging occurs in the funnel-shaped storage tank due to crosslinking formed by the powder material in the funnel-shaped storage tank being intertwined with each other or the powder material inside the funnel-shaped storage tank being formed by agglomeration of the arch or the funnel-shaped storage tank formed by sticking to the inner wall of the storage tank.

If clogging occurs in the funnel-type storage tank, the organic work flow before and after the funnel-type storage tank is not smoothly carried out and the operation is not performed in a continuous process. For example, in the case of a coal-fired power plant, The unstable operation caused by the clogging phenomenon causes the influence to other processes, which causes the decrease of the operation rate and the reduction of the power generation amount. This problem caused by the clogging of the funnel-type storage tank occurs very frequently not only in coal but also in powder materials such as grain and foods.

In order to solve the clogging phenomenon of the funnel-shaped reservoir by the above-mentioned crosslinking, conventionally, as a method for preventing the crosslinking from occurring in the funnel-shaped reservoir, there has been proposed a method of changing the structure of the funnel- , A discharge outlet enlargement, a shape change of a funnel-shaped storage vessel, and a vibrating-type storage vessel were used. However, such a conventional method is not limited to the funnel-type storage tank and the funnel-type storage tank manufactured by removing the existing funnel- The cost is very high as the discharge port is installed, and if the characteristics of the conventional powder material and the environmental conditions are changed after the reinstallation, the clogging phenomenon occurs again.

Also, as a method for preventing the cross-linking from occurring in the funnel-type storage tank by using a separate attachment device in the existing funnel-type storage tank, a plurality of BLASTER of a predetermined size may be fixedly installed outside the funnel-shaped storage tank, or a magnetic hammer HAMMER) can be installed on the outer wall of the funnel-type storage tank and operated periodically. However, this conventional method is an indirect method in which impact is applied to the outer wall of the funnel- It is not only a very large energy loss due to continuous operation even when the internal powder material flows normally, but also the effect of removing the internal clogging phenomenon is very small because the crosslinking is continuously formed inside the funnel- My Establish a regular repair work or when planning repair schedule to remove a blockage by a poor worker who is put inside a funnel-shaped reservoir using hand tools carried out to remove the blockage inside job.

Particularly, in the method of preventing cross-linking from occurring in the funnel-shaped reservoir as described above, there is a problem that when the funnel-shaped reservoir is clogged due to already occurring cross-linking, it can not be broken or removed.

As described above, when the funnel-type storage tank is already clogged with the inside of the funnel-shaped storage tank, the conventional crosslinking preventing apparatus can not remove and break the already formed crosslinking, so that the funnel-shaped storage tank is closed Whenever the supply of powdered material becomes unstable or irregular, it is put into the field directly by the employees in the urgent action plan, and a special hammer or the like is handed to the funnel- There is a way to solve the problem by removing the clogging phenomenon in the storage tank, but this method has a problem that the risk of safety accident is very high and it is a very difficult operation.

As an additional method for preventing the crosslinking from occurring in the funnel-shaped storage tank while using the existing funnel-shaped storage tank as it is, the vibrator (B) installed outside the funnel-shaped storage tank (S) Shaped funnel-shaped reservoir (R, R ') and vibrating flat bar (P) in the funnel-shaped reservoir (S) An apparatus for preventing cross-linking of a powder material is disclosed.

However, the apparatus for preventing cross-linking of the powder material in the funnel-shaped storage tank is not only a waste of energy due to continuous operation even when the powder material in the funnel-shaped storage tank normally flows, The powder material is caught on the vibrating rings R and R 'and the vibrating flat bar P when the powder material is drawn out because the vibrating flat bars P are installed on the vibrating plates R and R' The drawback of the powder material is not smooth and the crosslinking of the powder material is easily formed by the vibrating ring or the like and the clogging phenomenon is more likely to occur than the original funnel-type storage vessel in which such a device is not installed A problem is expected.

One or more powder material reservoirs that recognize the above problems and use the existing funnel-type reservoirs as they are and yet another way to prevent cross-linking within the funnel-shaped reservoirs, such as forming a plurality of holes and storing powdered material; A dog sensor installed in the powder material reservoir; And a cylinder for crushing a powder material installed on the outer surface of the powder material reservoir (10) through the hole and crushing the powder material fixed in a cross-linked manner in the reservoir by moving the hammer back and forth have.

However, in the prior art shoe bridging and shredding apparatus, when a dog sensor is installed for a predetermined period of time, the dog sensor is worn and consequently, the dog sensor can not be used.

In the conventional shredder bridging apparatus, it is possible to crush a powder material fixed in a cross-linking manner in a storage tank using a hammer of a cylinder for crushing powder material, There is a problem that the powder material which is only partially crushed and fixed in the storage tank around the hammer can not be crushed.

The conventional shredder bridging apparatus of the present invention is characterized in that the hammer collides with the hammer housing part at a high speed when the hammer is moved backward after advancing the hammer by operation of the powder material crushing cylinder, Thereby generating vibration and noise.

Further, in the conventional shiriler bridging and crushing apparatus, a stright type O-ring having a flat bottom face is installed in the hammer housing to seal between the hammer and the hammer housing, but the hammer frequently moves forward and backward in the hammer housing at high speed The O-ring is worn out after a certain period of time has elapsed, and the O-ring must be replaced.

Registered in Korea Utility Model No. 0141599 (Dec. 31, 1998)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hammer housing and a cross-linked fixed powder material crushing system that does not generate vibration and noise on the outer wall of a storage tank connected to the hammer housing.

Another object of the present invention is to provide

The powdered material fixed to the inner wall of the storage tank is crushed by an air nozzle, and Arch formed in the storage tank is a crosslinked fixed powder having a powder material crushing and hydraulic device including a hammer housing and an air booster capable of crushing by transferring kinetic energy And to provide a material grinding system.

Another object of the present invention is to provide an ultrasonic sensor capable of detecting whether the inside of the storage vessel is clogged with powder material without occurrence of abrasion and a cross-linked fixed powder material grinding control system for controlling the cross-linked fixed powder material grinding system .

It is a further object of the present invention to provide a crosslinked bonded powder material grinding system in which the lifetime of the O-ring provided in the hammer housing between the hammer and the hammer housing is increased.

The present invention has the following features in order to achieve the above object.

The crosslinkable bonded powder material grinding system of the present invention comprises: at least one powder material reservoir (10) for forming a plurality of pores and storing a powdery material; An ultrasonic sensor (60) installed in the powder material reservoir (10) and detecting whether the powder material flowing in the powder material reservoir (10) is clogged due to crosslinking fixation on the inner wall of the reservoir; A hammer housing 22 provided on the outer surface of the powder material reservoir 10 through the holes and including a hammer 23 and a plurality of air nozzles 30N, And a plurality of air nozzles (30N, 31N, 32N, 33N) for crushing the powdery material adhered thereto, 20); And a control unit (70) installed outdoors to control the operation of the powder material grinding and hydraulic apparatus (20).

The ultrasonic sensor (60) is installed on at least one of a pouring part located above the reservoir (10) and a neck part below the pouring part.

The pulverized hydraulic device 20 includes a hammer housing 22 for housing the hammer 23 and the reciprocating hammer 23, a hydraulic cylinder housing 25 having one end connected to the hammer housing 22, A piston (26) installed to reciprocate right and left in the hydraulic cylinder housing (25), a hammer (23) and a piston (26) which are adjacent to one end of the piston 1 rod 29-2, a second rod 29-1 adjacent to the other end of the piston 26 but separated from the piston 29 and capable of reducing reciprocating movement and operation noise, And a control valve housing (21H) for controlling the control valve (21).

The air booster includes a booster housing 27 coupled to the other end of the hydraulic cylinder housing 25 and a booster housing 27 coupled to an opposite end of the piston 26, 27, the one end portion communicating with the air compartment (28Rr) of the pneumatic cylinder piston 28 disposed to reciprocate within, and both the air compartment (28R _L, 28Rr) are formed with respect to the pneumatic cylinder piston 28, 31N, 32N, and 33N connected to the other end exposed to the inside of the reservoir 10 and the air hoses 30, 31, 32, and 33 provided around the hammer housing 22 ).

The hammer 23 is prevented from being released to the outside by the hammer housing 22 and supported by the spring S so that when the spring S receives a force from the first rod 29-2, And then returns to the storage tank 10 when the force is released from the first rod 29-2.

Is inserted into a groove (22-1) formed on the inner side surface of the hammer housing (22) facing the hammer (23) and has a projection on the upper side and a plurality of projections (41, 42, 43, 44) on the lower side And the O-ring 40 is urged toward the hammer 23 by a spring 51 connected to a spring fixing base 50 provided on the hammer housing 22. The O-

The control unit 70 is formed in the form of a control panel including a double structure door for waterproofing, dehumidification, and shielding, and an internal separation air conditioner for constant temperature and dustproofing.

The present invention has been made to solve the above problems, and has an effect of providing a hammer housing and a crosslinked fixed powder material crushing system which does not generate vibration and noise on the outer wall of the storage tank connected to the hammer housing.

In addition, the present invention has an effect of crushing not only the powder material adhering to the hammer but also the powder material adhered in the reservoir around the hammer.

In addition, the present invention has the effect of detecting whether the inside of the storage tank is clogged with the powder material without occurrence of abrasion.

Further, the present invention has an effect of increasing the service life of the O-ring installed in the hammer housing between the hammer and the hammer housing.

FIG. 1 is a view showing an example in which the storage tank of the present invention is applied as a low carbon tank and a differentiator in an industrial field.
FIG. 2 is an enlarged view of the low carbon tank and the differentiator of FIG. 1 in detail.
FIG. 3 is a diagram showing the principle of formation of an arch and the principle of crushing in the low-carbon and the fine particle of FIGS. 1 and 2. FIG.
Fig. 4 is a view showing a control unit 70 for controlling the oil pressure of a powder material crushing and hydraulic apparatus installed in the outdoors and installed in the low-carbon vessel and the fine vessel of Figs.
FIG. 5A is a cross-sectional view showing a storage tank and a section of a pulverized hydraulic device installed in the storage tank in a state in which a hammer and an air booster are omitted. FIG.
FIG. 5B is a cross-sectional view showing a state in which the hammer and the air booster are shown in a reservoir and a retracted hydraulic device installed in the reservoir.
5C is a cross-sectional view showing the reservoir and the pulverized hydraulic device installed in the reservoir in a state in which the hammer and the air booster are advanced.
6 is a view of the vicinity of the hammer end seen inside the storage tank.
7 is a sectional view of an O-ring installed in the hammer housing to seal between the hammer housing and the hammer.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. The terms used in the description of the present invention are defined in consideration of the functions of the present invention, and thus may be changed depending on the user, the intention of the operator, customs, and the like. Therefore, the definition of this term should be based on the contents of this specification as a whole.

FIG. 1 is a view showing an example in which the storage tank of the present invention is applied as a low carbon tank and a differentiator in an industrial field, FIG. 2 is an enlarged view of the low carbon tank and the differentiator of FIG. 1, , Figure 2 shows the principle of arch formation and the principle of crushing in the low carbon burner and the differentiator.

The powder material reservoir 10 serves to form a plurality of holes and to store powdered material. Referring to FIGS. 1 and 2, the powder reservoir 10 includes six low-carbon vessels and six differentiators in the form of low- 12, but may be more or less than twelve in another embodiment of the present invention.

2, the ultrasonic sensor 60 is installed in the pouring part of the storage tank 10, but the present invention is not limited thereto, and the pouring part of the storage tank 10 and the pouring part of the pouring part 10 It is possible to install it on at least one part of the neck of the neck.

Referring to FIG. 3, in the storage tank 10, a powder material, for example, a coal powder material in this embodiment, is formed in the form of a bridge in the form of a bridge in the reservoir wall. In this case, The material is destroyed and flows down.

Fig. 4 is a view showing a control unit 70 for controlling the oil pressure of a powder material crushing and hydraulic apparatus installed in the outdoors and installed in the low-carbon vessel and the fine vessel of Figs.

Referring to FIG. 4, the control unit 70 is installed outdoors to control the operation of the powder material pulverization and hydraulic apparatus 20, and includes a double structure door for waterproof, dehumidification, and shielding, And an internal detachable air conditioner.

FIG. 5A is a cross-sectional view showing a cross-section of a reservoir and a crushing hydraulic device installed in the reservoir with the hammer and the air booster omitted, FIG. 5B is a cross-sectional view of the crushing hydraulic device installed in the reservoir and the reservoir, FIG. 5C is a cross-sectional view showing a state in which the hammer and the air booster are shown in the reservoir and the crushing and hydraulic apparatus provided in the reservoir, and FIG. 6 is a cross-sectional view showing the vicinity of the hammer end And Fig. 7 is a sectional view of the O-ring installed in the hammer housing and sealing between the hammer housing and the hammer.

1 to 7, a cross-linked fixed powder material grinding system according to an embodiment of the present invention includes a powder material reservoir 10, an ultrasonic sensor 60, a powder material grinding hydraulic device 20, and a controller 70 ).

BACKGROUND OF THE INVENTION Powder materials include coal, limestone, grain, or powdered foodstuffs.

The powder material reservoir (10) forms a plurality of holes and stores powdered material.

The ultrasonic sensor 60 is installed in the powder material reservoir 10 to detect whether the powder material flowing in the powder material reservoir 10 is clogged due to crosslinking at the inner wall of the reservoir. It is possible to install it on at least one of the crock part located at the upper part and the neck part at the lower part of the crock part.

The ultrasonic sensor 60 is installed in the powder material reservoir 10 to detect whether the powder material flowing in the powder material reservoir 10 is clogged due to crosslinking at the inner wall of the reservoir. The ultrasonic sensor 60 receives and senses the amount of the powder material flowing in the storage tank 10 by receiving ultrasonic waves emitted from the ultrasonic launcher.

For example, if the storage vessel is blocked by the powder material, the ultrasonic wave passes through the storage tank 10 in the order of steel → powder → steel → steel. However, if the storage vessel is not clogged with the powder material, Steel, and the steel is passed through in the order of steel, powdered material, air, and steel. In this case, the ultrasonic sensor 60 will detect the waveform difference of the received ultrasonic waves It is possible to judge whether or not the storage tank is clogged.

5A to 6, the powder material pulverizing and hydraulic apparatus 20 is constructed such that the powder material pulverizing and hydraulic apparatus 20 is installed on the outer surface of the powder material reservoir 10 through a hole formed in the wall of the storage tank 10 And a plurality of air nozzles (30N, 31N, 32N, 33N) spaced around the hammer (23), wherein the hammer (22) comprises a hammer (23) The hammer 23 and the plurality of air nozzles 30N, 31N, 32N, and 33N are crushed with the hammer 23 and the plurality of air nozzles 30N, 31N, 32N, and 33N. A hammer housing 22 is provided in the hole of the reservoir 10 and a hammer 23 is installed in the hammer housing 22 so that the wear caused by the flow of the powder material 180 ton per hour It is made of high durability material.

The pulverized hydraulic device 20 includes a hammer housing 22 for housing the hammer 23 and the reciprocating hammer 23, a hydraulic cylinder housing 25 having one end connected to the hammer housing 22, A piston 26 installed to reciprocate right and left in the hydraulic cylinder housing 25 and a hammer 23 and a first rod 29-2 which is separated from the one end of the piston 26 and is capable of reciprocating movement , And a second rod (29-1) adjacent to the other end of the piston (26) and capable of reciprocating movement. The piston 26 is fabricated from a high-speed hydraulic cylinder with the power to crush the 20 tons of coal loaded.

The piston 26 has two grooves 26-1 and 26-2 formed in the circumferential direction and the cylinder 21 disposed in the housing 21H provided on the outer surface of the pulverization hydraulic device 20 And two grooves 21-1 and 21-2 formed in the circumferential direction.

Although only four of the air nozzles 30N, 31N, 32N, and 33N are shown as being disposed in the embodiment of FIG. 6, the present invention is not limited thereto and a plurality of air nozzles including 2, 3, 5, It is possible to arrange them around the hammer 23 at intervals.

The hammer 23 is prevented from being released to the outside by the hammer housing 22 and supported by the spring S so that when the spring S receives a force from the first rod 29-2, And then returns to the position in the reservoir 10 when the force is released from the first rod 29-2.

The principle that the powder material fixed in the storage tank 10 by the operation of the hammer 23 and the air booster is pulverized is as follows.

5A, when the external oil communicates with the hydraulic passages A1, A2, and A3, the oil enters the hydraulic passages A1, A2, and A3 and pushes the piston 26 from the right side to the left side in FIG. And the first rod 29-2 and the second rod 29-1 are also pushed from the right side to the left side as shown in FIGS. 5A and 5B. At this time, since the first rod 29-2 and the hammer 23 are separated from each other, the hammer 23 receives the restoring force by the spring S and is located in the reservoir 10, 29-1 are engaged with the pneumatic cylinder piston 28, the pneumatic cylinder piston 28 is also pushed to the left. In this case, the air in the compartment 28R _L is discharged through the outlet.

On the other hand, when the external oil communicates with the oil pressure passages B1, B2 and B3, the oil enters the oil pressure passages B1, B2 and B3 to push the piston 26 from the left to the right in FIG. The one rod 29-2 and the second rod 29-1 are also pushed from the left side to the right side and the state shown in FIG. 5C is obtained. At this time, although the first rod 29-2 and the hammer 23 are separated from each other, the first rod 29-2 moved to the right causes the hammer 23 to overcome the force of the spring S, So that the powder material adhering to the inner wall of the storage tank 10 is crushed. At the same time, since the second rod 29-1 is engaged with the pneumatic cylinder piston 28, the pneumatic cylinder piston 28 also moves to the right as the second rod 29-1 moves to the right The air in the air compartment 28Rr is supplied to one end communicated with the air compartment 28Rr, the other end exposed to the inside of the reservoir 10 and the air nozzles 30N, 31N, 32N, and 33N connected to the other end, 31N, 32N, and 33N of air hoses (not shown) 30, 31, 32, and 33 provided around the hammer housing 22 to be sprayed into the reservoir 10, The hammer 23 and the powder material fixed around the hammer housing 22 are crushed.

In this embodiment, the O-ring 40 is inserted into the groove 22-1 formed on the inner side surface of the hammer housing 22 facing the hammer 23, And includes four protrusions 41, 42, 43, and 44 on the lower side with a recessed portion. The O-ring 40 is configured to be urged toward the hammer 23 by a spring 51 connected to a spring retainer 50 installed on the hammer housing 22. The O-ring 40 is pushed by the spring 51 to the hammer 23 23, the O-ring 40 can maintain the sealing action against the hammer 23 even if the bottom surface of the O-ring 40 is worn due to friction with the reciprocating hammer 23. The projections 41, 42, 43, and 44 may be formed more than four and two or more but less than four.

The hammer 23 enters the reservoir 10 to crush the fixed powder material and then enters the hammer housing 22 provided in the hole of the wall of the reservoir 10. The hammer 23 is attached to the hammer 23 with an o- 40). For example, in the case of coal powder material, it is pushed in with a force of about 20 tons. The powder material thus pushed in enters the recess between the projections 41, 42, 43, 44 formed by the projections 41, 42, 43, 44 of the O-ring 40. In this embodiment, Enters the recess between the projection 41 and the projection 42 and then enters the recess between the projection 42 and the projection 43 and then into the recess between the projection 43 and the projection 44, The pushing force is weakened and the force is hardly received.

The principle of noise reduction is that when the piston 26 is moved by contact with the first rod 29-1 and the second rod 29-2, the hydraulic pressure of the same pressure forms a back pressure The forward motion can be performed and the amount of discharged hydraulic pressure can be adjusted to reduce impact and operation noise.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

10: Storage tank
20: powder material crushing hydraulic device
22: Hammer housing
22-1: home
23: Hammer
25: Hydraulic cylinder housing
26: Piston
28: Pneumatic cylinder piston
28R _L , 28Rr: air compartment
29-1: Second load
29-2: First load
30, 31, 32, 33: Air hose
30N, 31N, 32N, 33N: air nozzle
60: Ultrasonic sensor
A1, A2, A3, B1, B2, B3: hydraulic passage
40: O ring
41, 42, 43, 44:
50:
51: spring
70:

Claims

At least one powder material reservoir (10) forming a plurality of pores and storing powdered material;
An ultrasonic sensor (60) installed in the powder material reservoir (10) and detecting whether the powder material flowing in the powder material reservoir (10) is clogged due to crosslinking fixation on the inner wall of the reservoir;
A hammer housing 22 provided on the outer surface of the powder material reservoir 10 through the holes and including a hammer 23 and a plurality of air nozzles 30N, And a plurality of air nozzles (30N, 31N, 32N, 33N) for crushing the powdery material adhered thereto, 20); And
And a control unit (70) installed outdoors to control the operation of the powder material pulverizing and hydraulic apparatus (20)
The pulverized hydraulic device 20 includes a hammer housing 22 for accommodating the hammer 23 and the reciprocating hammer 23, a hydraulic cylinder housing 25 having one end connected to the hammer housing 22, A piston (26) installed to reciprocate right and left in the hydraulic cylinder housing (25), a hammer (23) and a piston (26) which are adjacent to one end of the piston A rod (29-2), a second rod (29-1) adjacent to the other end of the piston (26) but capable of reducing reciprocating movement and noise,
The air booster includes a booster housing 27 coupled to the other end of the hydraulic cylinder housing 25 and a booster housing 27 coupled to an opposite end of the piston 26, 27, the one end portion communicating with the air compartment (28Rr) of the pneumatic cylinder piston 28 disposed to reciprocate within, and both the air compartment (28R _L, 28Rr) are formed with respect to the pneumatic cylinder piston 28, 31N, 32N, and 33N connected to the other end exposed to the inside of the reservoir 10 and the air hoses 30, 31, 32, and 33 provided around the hammer housing 22 ). &Lt; / RTI >

The method according to claim 1,
Wherein the ultrasonic sensor (60) is installed on at least one of a cradle located above the reservoir (10) and a neck below the cradle.

delete

The method according to claim 1,
The hammer 23 is prevented from being released to the outside by the hammer housing 22 and supported by the spring S so that when the spring S receives a force from the first rod 29-2, And is returned into the reservoir (10) when it is projected into the reservoir (10) and released from the force from the first rod (29-2).

6. The method of claim 5,
Is inserted into a groove (22-1) formed on the inner side surface of the hammer housing (22) facing the hammer (23) and has a projection on the upper side and a plurality of projections (41, 42, 43, 44) on the lower side Further comprising an O-ring (40)
Wherein the O-ring (40) is pressed toward the hammer (23) by a spring (51) connected to a spring fixture (50) provided on the hammer housing (22).

The method according to claim 1,
Wherein the control unit (70) is in the form of a control panel including a double structure door for waterproofing, dehumidification, and shielding, and an internal separation air conditioner for constant temperature and dustproofing.