JP2593780B2 - Belt conveyor device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a belt conveyor for transferring sinter ore, iron ore, and other ore, coal, earth and sand, sand particles, limestone, and other bulk materials. An adhering matter collecting mechanism is provided to scrape the particles adhered to the return belt surface and return it to the conveying surface of the belt, and to prevent the above particles from scattering to the surroundings, thereby preserving a working environment. The present invention relates to a belt conveyor device.

[0002]

2. Description of the Related Art Heretofore, powder or particulate matter such as fine ore has adhered to the belt surface of this kind of belt conveyor for loose goods, and this falls and scatters due to the turning or vibration of the belt conveyor, thereby reducing the environment around the conveyor. Conventionally, a scraping plate that is in sliding contact with the belt surface is disposed near the turning position of the belt conveyor, and the scraping plate scrapes off powder and particulate matter adhering to the belt surface. A structure in which the material is fed into a hopper together with a conveyed material has been put to practical use.

[0003] However, it is difficult to sufficiently remove the powdery substances adhering to the belt surface only by the above-mentioned conventional scraping operation of the turning portion by the scraping plate. Granules will fall off.
For this reason, according to the configuration using only the scraping plate, it is necessary to perform a labor and labor-intensive operation for removing the dropped granular material. In order to reduce such labor, for example, after the powdery material adhered to the belt surface is generally scraped off by the scraping plate, water is immediately applied to the return belt surface by a shower device immediately after the scraping plate. By spraying, the method of removing the particulate matter remaining on the belt surface is partially adopted, but in this case, since the water jet sprayed from the shower device is sprayed on the belt surface,
There is a problem that the equipment cost required for post-treatment of the shower water is considerably high.

On the other hand, as a method for solving the above-mentioned conventional problem, the applicant has previously arranged a rotating ring body surrounding the belt conveyer so as to pass through the belt conveyer. A plurality of bucket portions are formed on the inner peripheral surface of the rotating ring body, and a scraping member that slides on the return side belt surface in a space between the return side belt surface of the belt conveyor and the rotating ring body is used as the belt surface. A belt conveyor device provided with an adhering matter collecting mechanism arranged in a state of crossing over has been proposed (Japanese Patent Application No. 3-254810).

[0005] According to this method, a scraping member provided across the return belt surface of the belt conveyor slides on the return belt surface as the belt conveyor rotates, and the belt member contacts the return belt surface. The adhered substances on the surface are scraped off, and the scraped-off particulates are sequentially collected by the bucket portion of the rotating ring body surrounding the belt conveyor by the action of gravity. Furthermore, when the collected powdery and granular material is located above the belt conveyor by the rotation of the rotating ring, it falls by the action of gravity, is returned to the conveyor belt surface of the belt conveyor, and is conveyed together with the conveyed object. Become.

Accordingly, particulate matter adhering to it return belt surface this apparatus is automatically recovered, the return-side bell
This has the effect that it can be conveyed with the conveyed object without remaining on the surface.

[0007]

However, according to the belt conveyor device proposed above, the collected powdery material is positioned upward by the rotation of the rotating ring body and dropped by gravity. is recovered by immediately dropping, Little particulate, such as dancing in the wind, sometimes such a fine powdery granules wind air-conditioning equipment stir the transport site is scattered around in the middle of dropping, also returns There is also a risk that fine powder and particulate matter may be scattered by the scraping operation of the scraping member on the side belt surface.

In particular, in the above-mentioned belt conveyor, since the rotating ring body is provided with a bucket to collect powdery and granular materials, the rotation of the rotating ring body causes air in the bucket to generate a swirling airflow. Therefore, there is a problem in that the environment surrounded by the rotating ring body is apt to generate wind, which promotes the scattering of the fine powder and granular material.

The present invention has been made in view of the problems of the belt conveyor device proposed above, and prevents the scattering of fine powder and particulate matter in the collection mechanism of the rotating ring body to make the working environment a clean environment. It is an object of the present invention to provide a belt conveyor device provided with a powdery / granular matter collecting mechanism capable of being held.

[0010]

In order to achieve the above object, a belt conveyor device according to the present invention is provided so as to pass through a belt side of a conveyor side and a belt side of a return side of the belt conveyor in a middle part of a traveling path of the belt conveyor. A rotating ring body is arranged so as to surround the rotating ring body, a plurality of bucket portions are formed on the inner circumferential surface of the rotating ring body, and further, a return belt surface of the belt conveyor and a lower circumferential inner circumferential surface of the rotating ring body. A belt conveyor device in which a scraping member that slides on the return side belt surface is disposed in a space between the belt members and both ends of the scraping member are supported between mounting frames disposed on both sides of the belt conveyor. While covering the upper half of the rotating ring body in the upper portion from the conveyor belt surface of the belt conveyor with a tent supported by a frame material fixed to the mounting frame,
A bullet that is scraped by the scraping member near the scraping member
It has a structure in which a dust scattering prevention film material for receiving dust to be blown away is arranged .

The invention according to claim 2 is characterized in that in the belt conveyor device, a wear-resistant resin body is interposed between the frame member supporting the tent and the front and rear walls of the rotating ring body. Belt conveyor device.

Further, the invention according to a third aspect is a belt conveyor device characterized in that a rubberized canvas is arranged in a slender manner at a lower end of a tent.

According to a fourth aspect of the present invention, a guide member for guiding the falling particulate material onto the surface of the conveyor belt is provided in the internal space of the rotating ring body so as to be separated from the rotating ring body. the guide member is a belt conveyor apparatus characterized by being fixed tent inner surface to the <br/> frame member for supporting lifting.

[0014]

Therefore, according to the belt conveyor of the present invention, arranged a rotating ring member in the middle portion of the travel path of the belt conveyor, the covering the upper half of the rotary ring member at tents
Since it is, and when the particulate material from the bucket portion provided inside the rotary ring body to fall by gravity, the inner surface of the above powder granules even occur airflow into the inner space of the rotary ring body tents It is prevented from being scattered outside by being blocked by the ring body, and is reliably dropped and returned to the conveyor belt surface.

[0015] The tent, with respect to the surface of the rotary ring member, said while being free and the rotary ring member are disposed Runode, with no inhibiting the rotation of the rotary ring member, the tent Can be replaced while continuing the operation of the rotating ring body.
Further, in the present invention, the scraping member is provided near the scraping member .
Since the disposed dust scattering prevention film material for receiving the scraped by playing dust blown I, particulate matter that is scraped by the scraping member in the circumferential <br/> side by the dust scattering prevention film material Scattering can be reliably prevented .

Therefore, even if the scraping member is constituted by using a rotating brush having a large scraping effect, and the rotating speed of the rotating brush is increased to increase the scraping efficiency, the dust scattering preventing film material can be used. Because it prevents powder and particulate matter from scattering,
There is no fear of polluting the surroundings with the powdery or granular material, and the scraping member can exhibit the maximum scraping effect.

According to the second aspect of the present invention, the tent is supported.
Since the wear-resistant resin body is interposed between the frame member and the rotating ring body, the tent can be installed in a state where the tent is held in shape by the frame member. There is no need to worry about contact with the ring body. In addition, the wear-resistant resin body between the frame member and the rotating ring body prevents direct contact between the frame member and the rotating ring body, thereby smoothing the rotation of the rotating ring body, and at the same time, forming the tent and the rotating ring body. This has an effect of preventing generation of unpleasant noise such as abrasion of a tent and frictional sound due to contact.

According to the third aspect of the present invention, since the rubberized canvas is arranged in a slender manner at the lower end of the tent, the powdery and granular materials can enter the air in the internal space of the tent covering both surfaces of the rotating ring body. Even if it flutters, powder and particulate matter that collided with the sloping rubberized canvas will fall down along the rubberized canvas, reducing adhesion to the inner surface of the tent and improving the collection efficiency of powdered and granular material In addition, the tent has an effect of preventing contamination of the inner surface of the tent.

According to the fourth aspect of the present invention, the guide member is provided in the internal space of the rotary ring body so as to be separated from the rotary ring body, and the frame member holding the inner surface of the tent is fixed to the guide member. With this configuration, the guide member guides the powdery or granular material falling from the bucket portion of the rotating ring body efficiently onto the conveyor belt surface, and can surely return it to the central portion of the conveyor belt surface. In addition, since the tent frame material is fixed to the guide member, there is no need to secure a special space for installing the frame material, and the guide member and the tent frame material are disposed integrally to make effective use of the space. It has the effect of being able to do it.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings . In FIG. 1, reference numeral 1 denotes a belt conveyor. This conveyor 1 has an endless belt 4 made of rubber or a polyamide synthetic fiber wound between a driving pulley 2 and a tail pulley 3, and the conveyor belt is driven by the driving rotation of the driving pulley 2. The endless belt 4 has a well-known structure in which the surface 4a is rotated in a circular manner so as to move from the tail pulley 3 side to the drive pulley 2 side. The endless belt 4 is appropriately tensioned by a tension pulley 5 disposed near the drive pulley 2. The idlers 6, 6, 6 to which the transfer-side belt surface 4a is rolled and contact.
6 and the return belt surface 4b is horizontally supported by return rollers 7, 7,.
The conveyed object B is sent to a next-stage conveyor 9 disposed below an outlet end of the hopper 8 via a hopper 8 opened toward the drive pulley 2.

Reference numeral 10 denotes a scraping device according to a well-known technique disposed near the turning position of the endless belt 4.
10 is a return belt surface of the first column or the front and rear two rows of sliding contact with the 4b scraping plates 11 made of arranged in the form across the return belt surface 4b.

In FIG. 2 to FIG. 4, reference numeral 12 denotes a mechanism for collecting the adhering matter of the belt conveyor, which is a rotating ring disposed in a middle of the traveling path of the conveyor 1 so as to surround the conveyor 1. It has a body 13 and a scraping member 14 that is in sliding contact with the return side belt surface 4b of the conveyor 1.

The rotating ring body 13 has a peripheral bottom wall 16 integrally provided over the entire periphery between a pair of ring-shaped front and rear walls 15 and 15 facing each other in an upright posture, and a circumferential groove 17 is formed on the inner peripheral surface side. , And a plurality of partition plates 18, 18,... 18 are mounted at regular intervals in the circumferential groove 17, and a number of bucket portions 1 are provided between the respective partition plates 18, 18,.
9, 19 ... 19 are formed and both ring-shaped side walls 15, 1
The flanges 20 and 20 are formed by projecting the outer peripheral edge of 5 slightly beyond the outer peripheral surface of the peripheral bottom wall 16 .
Belt conveyor with front wall 15 facing drive pulley 2
1 on the way.

On the other hand, below the conveyor 1, there is provided a gantry 21 framed from a steel die or the like, and a pair of rolling wheels 22, 23 are mounted on both sides of the gantry 21, respectively. The distance between the shaft centers of these rolling wheels 22, 23 is set slightly shorter than the diameter of the rotating ring body 13, and one of the rolling wheels 22, 22 is reduced as a driving wheel via a belt-pulley transmission mechanism 24. It is linked to a drive device 25 such as a motor. By mounting the rotating ring body 13 on each of the pair of rolling wheels 22 and 23, the outer peripheral surface of the peripheral bottom wall 16 of the rotating ring body 13 is
Rolling contact with 22 and 23, each rolling wheel by the flange portions 20 and 20 on both sides
It is rotatably supported in a state where it is separated from 22, 23,
The driving rotation of the rolling wheels 22, 22 causes the other rolling wheels 23 , 23 to rotate in conjunction with the rotating ring body 13 as driven wheels, whereby the rotating ring body 13 is shown in FIG. It is driven to rotate in the direction of arrow a.

In the adhering matter collecting mechanism 12, the drive wheel 22 has a drive shaft 22 as shown in FIGS.
A cam member 27 is attached to the outer surface of a boss member 26 provided coaxially with a by bolts 28, and is detachably mounted. That is, the boss member 26 is formed in a cut-out shape in which a part of a circle is cut out, and the cut-out portion is provided with a cam mounting portion 26a having a step with the outer periphery of the cut-out portion. , 28, a cam member larger in diameter than the boss member 26
27 has been signed. The cam member 27 is formed in a shape substantially along the outer shapes of the boss member 26 and the cam mounting portion 26a, and its outer periphery is rolled into contact with the outer peripheral surface of the rotating ring body 13 as a circumferential cam 27a, and the rotating ring body 13 is By causing the rotating ring 13 to fall suddenly after being raised, a constant impact is given to the entire rotating ring 13. Preferably, the inner diameter D0 of the rotating ring body 13 is
When the diameter is 2000 mm, the diameter D1 of the boss member 26 of the drive wheels 22, 22
Is about 200 mm, and the step H of the cam mounting portion 26a is about 20 mm. Further, the cam member 27 may be provided on the driven wheel 23 side, but in this case, there is a possibility that the driven wheel 23 may idle due to resistance when the rotating ring body 13 gets over the cam surface. It costs.

Reference numerals 29, 29 denote a conveyor-side belt surface 4a and a rotating ring body.
The lower end portions 29a, 29a are supported by mounting frames 30, 30 disposed on both sides of the conveyor 1, respectively, with guide members provided in the upper half space portion of the rotating ring body 13 in the space between the 29b, 29b
Are curved along the opening surfaces of the bucket portions 19, 19, and 19, and are provided with guide surfaces 29c, 29c extending in an inclined manner from the upper end of the curved portion toward the transport side belt surface 4a. Guide member 29 on the near side in the rotation direction of rotating ring body 13
The curved intermediate portions 29b, 29b are elastically brought into close contact with the openings of the rotating ring body 13 so that the bucket portions 19, 19,.
19 is prevented from falling during the rotation of the rotating ring body 13, and the bucket parts 19, 19,... 19 are moved by the rotation of the rotating ring body 13.
When it comes to the position just above 4a, the granular material falling from the buckets 19, 19,... 19 is guided to the transport side belt surface 4a and returned to the center of the transport side belt surface 4a.

Further, each partition plate 18, 1 of the rotary ring body 13 is provided.
8 ... 18 are the guide members 29,
In order to prevent powdery and granular deposits from spilling up to the guide surfaces 29c, 29c on the front side of 29, the opening end side is the peripheral bottom wall 16c.
It is attached in a state where it is inclined so as to be located forward in the rotation direction from the side.

The scraping member 14 is disposed in a space S2 between the return belt surface 4b of the conveyor 1 and the rotating ring body 13. The scraping member 14 in this embodiment is provided with the mounting frames 30, 3
A rotating shaft 32 is mounted between the bearing members 31, 31 vertically suspended from the lower side of the return side belt surface 4 b in a direction crossing the belt surface 4 b, and is attached to the rotating shaft 32 in the length direction A plurality of bundles of brushes 33, 33, 33 arranged in a straight line over the brush bundles 33, 33, which are mounted radially in the circumferential direction at predetermined intervals with a gap 33a between adjacent brush bundles 33, 33. It is. In addition, brush bundle 33, 3
The arrangement of the rotating shafts 32 on the outer peripheral surface of the rotating shaft 32 can be set as appropriate. However, if the rotating shafts are arranged at three equally spaced positions as shown in the illustrated example, it is most suitable for preventing clogging of the brush bundle. In particular, a large number of fine wires made of stainless steel, which are formed in a fine waveform in the length direction and densely arranged in the same direction, are excellent in elastic restoring force and abrasion resistance and can be suitably used.

The scraping mechanism 34 drives the rotary shaft 32 via a belt / pulley transmission mechanism 35 to a driving device 36 such as a deceleration motor.
And a receiving roller for rotating the scraping member 14 in the direction c opposite to the traveling direction b of the reversing side belt surface 4b of the conveyor 1 shown in FIG. 3 and receiving the scraping member 14 from the back side. 37 is rotatably supported between the mounting frames 30, 30.

According to the present invention, there is provided an adhering matter collecting mechanism 12 which collects powdery and adhering matter from the return side belt surface 4b and returns it to the conveying side belt surface 4a by using the rotating ring 13 and the scraping member 14. In the belt conveyor device described above , a notched circular tent 40 that covers the upper half of the rotating ring 13 is attached to the upper half of the rotating ring 13. The tent 40 has a size larger than the outer diameter of the rotating ring body 13, and its front and rear surfaces are separated from the outer surface of the upper half of the rotating ring body 13, and are arranged in an arch shape inside the tent 40. It is covered via the combined frame material 41.

The frame member 41 is formed of the rotating ring 13
Are fixed together with the guide members 29, 29 using the mounting frames 30, 30 of the guide members 29, 29 provided in the internal space of the rotary member 13. A wear-resistant resin plate 42 for preventing contact between the ring body 13 and the frame member 41 is interposed.

The abrasion-resistant resin plate 42 is made of, for example, nylon or ABS resin, and is arranged in close contact or at an appropriate interval so as not to hinder the rotation of the rotating ring 13. At the lower end of the tent 40, a rubberized canvas 43 is arranged in a slender manner.
The lower end of the tent 40 is given a degree of freedom by 43, and the powdery and granular deposits dropped from the bucket portions 19, 19 ... 19 of the rotating ring body 13 fall along the rubberized canvas 43 from the inner surface of the tent 40. It is configured to be easy to do.

The slender rubberized canvas 43 has a length sufficient to cover the upper half of the rotating ring 13 and the conveyor belt surface 4a. The powdery and particulate matter dropped from the bucket parts 19, 19 ... 19 is prevented from scattering around before returning to the conveyor belt surface 4a. In the present embodiment, the tent 40 is formed using a suitable sheet material such as a rubber sheeting cloth in addition to a resin sheet, but a shell-shaped tent formed by processing a thin steel plate may be used. A resin sheet which is easy to replace and wash is preferable.

Further, the frame member 41, outside by retaining the shape of the tent 40 is the inner surface of the tent 40 rotating ring body 13
Is intended to prevent the wear in contact with the surface, it is installed from the outer surface of the front and rear walls 15, 15 of the rotary ring member 13 forms a predetermined interval.

Further, in the belt conveyor device of the present invention, the scraping member scrapes the portion near the front of the scraping member 14 disposed in the space below the return belt surface 4b of the belt conveyor.
A banner-shaped dust scattering prevention film material 44 for receiving dust that is torn off and flipped is disposed.

At the lower end of the dust scattering prevention film material 44, a sloping rubberized canvas 45 is provided similarly to the lower end of the tent 40, and the brush bundles 33, 33, 33 of the scraping member 14 are provided. It is arranged so that the adhered substance that is flipped off is received by the dust scattering prevention film material 44, and is further collected in the bucket portions 19, 19,... 19 of the rotating ring body 13 along the slender rubberized canvas 45.

That is, when the brush bundles 33, 33, 33 of the scraping member 14 elastically abut against the reversing side belt surface 4b to scrape off the adhered material, the elastic force of the brush bundles 33, 33, 33 causes the bundles. The adhering matter to be flipped off is received by the dust scattering prevention film member 44 provided in the direction in which the adhering matter is flipped off, so that the above-mentioned attachment is made to the bucket portions 19, 19. The kimono is collected without being scattered around.

The installation direction of the dust scattering prevention film material 44 is determined by the rotation direction of the brush bundles 33, 33, 33 of the scraping member 14, but is arranged before and after the scraping member 14. Needless to say, it is good.

Next, the operation of the belt conveyor device having the above-described structure will be described. The endless belt 4 carrying the continuously supplied articles B is turned around the driving pulley 2 immediately after the belt bundle 33 of the scraping member 14 is turned. During the return to the tail pulley 3 due to the rotation of the rotation of the tail belt 33, the deposits remaining on the return side belt surface 4b are scraped off.

That is, the back surface of the endless belt 4 traveling back to the tail pulley 3 side is in contact with the receiving roller 37 so that the upper belt is prevented from escaping upward. In this state, the endless belt 4 is scraped immediately below the receiving roller 37. The brush bundles 33, 33, 33 of the member 14
The belt 4 is rotated in the pressure contact state while being driven in the direction c opposite to the belt running direction b, whereby the powdery particles remaining on the return side belt surface 4b of the belt 4 are removed by the scraping member 14. Is scraped off. At this time, due to the elastic force of the brush bundles 33, 33, 33 of the scraping member 14, the deposits
The spattered material is flipped off in the rotation direction of 33, and the repelled deposit is blocked by the dust scattering prevention film material 44 to prevent it from splattering out of the rotating ring body 13; Collected in parts 19, 19 ... 19.

The adhering matter thus collected is collected by the bucket portions 19 of the rotating ring body 13 and then rises as the rotating ring body 13 rotates. The partition plates 18, 18, which divide the bucket portions 19, 19, ... 19 according to this rise.
When the posture of the bucket 18 gradually changes and reaches the opening between the guide members 29, 29, the bucket 18 is inclined downward toward the opening of the buckets 19, 19,. The adhering matter inside is guided to the guide surface on the front side of the guide members 29, 29, whereby the adhering matter collected in the bucket portions 19, 19,.
Returned to

The rotating ring body 13 driven and rotated by the driving wheels 22, 22 rides on the circumferential cams 27a provided on the driving wheels 22, 22, and then steps on the circumferential cam 27a. The dropping portion causes a periodic impact, and the impact causes the rotating ring body 13 to vibrate. As a result, the powder or particulate matter adhering to the bottom or the like in the bucket portion 19, 19. 19 is returned to the transport side belt surface 4a with almost no remaining in the bucket portions 19, 19...

Further, since the powdery and granular material peeled and dropped from the bucket portions 19, 19 ... 19 is covered by the tent 40 on both sides of the space between the transport side belt surfaces 4a, wind from outside In the course of falling, the granular material is prevented from being scattered, and even if the granular material attempts to scatter outside the rotating ring body 13 due to the impact of the sudden fall of the rotating ring body 13, the scattering is blocked by the tent 40. Thus, it is surely returned to the lower transport side belt surface 4a and transported together with the transported object.

[0044]

As described above, according to the present invention, a rotating ring body is provided at an intermediate portion of a traveling path of a belt conveyor so as to pass through the conveying belt surface and the return belt surface of the belt conveyor. A plurality of bucket portions are formed on the inner peripheral surface of the rotating ring body, and further, a space between the return side belt surface of the belt conveyor and the lower peripheral inner peripheral surface of the rotating ring body has a return side belt surface. In a belt conveyor device in which a scraping member to be slid in contact is provided and both side ends of the scraping member are supported between mounting frames provided on both sides of the belt conveyor, an upper portion of the belt conveyor from a transport side belt surface. And the upper half of the rotating ring body is covered by a tent supported by a frame member fixed to the mounting frame, and is scraped by the scraping member in the vicinity of the scraping member.
Since the belt conveyor device is provided with a dust scattering prevention film material for receiving dust that is flipped off, scraping that slides on adhering matter remaining on the return belt surface as the belt conveyor rotates. It is possible to scrape almost completely by the member, prevent the attached matter scraped off by the dust scattering prevention film material from scattering to the surroundings, and collect substantially all of the attached matter in the bucket portion provided on the rotating ring body. Further, the rotating ring body is driven to rotate, and is lifted to a position above the conveying side belt surface, dropped on the conveying side belt surface and returned, and is attached by a tent covering the upper half of the rotating ring body. Prevents the kimono from being scattered to the outside of the rotating ring body while falling on the transport side belt surface, returning almost all the attached matter on the transport side belt surface, and forming a fine powdery granular material around the periphery. Without soiling with, those that can return the belt surface deposits conveyor side belt surface on which does not deteriorate efficiently and surrounding environment.

Therefore, when scraping off the deposits from the belt surface on the return side, the scraping member is constituted by using a rotating brush having a large scraping effect, and the rotating speed of the rotating brush is increased to increase the scraping efficiency. Even when used, the dust scattering prevention film material prevents the scattering of particulate matter, so there is no need to worry about soiling the surroundings with the particulate matter, and the surrounding work environment is maintained well However, the scraping effect of the scraping member can be maximized.

Further, the invention of claim 2 is characterized in that a wear-resistant resin body is interposed between the frame member supporting the tent and the rotating ring body, so that the shape of the tent is maintained. As a result, the contact with the rotating ring body is completely prevented, and the tent is not worn. According to the third aspect of the present invention, the rubberized sailcloth is disposed at the lower end of the tent in a sloping manner, so that the fine powdery particulate matter floating on the inner surface of the tent is converted into the sloping rubberized sailing cloth. This has the advantage that it can be smoothly dropped along and returned to the conveyor belt surface.

According to a fourth aspect of the present invention, in the internal space of the rotating ring, a guide member for guiding the falling particulate material onto the surface of the conveyor belt is provided separately from the rotating ring. Since the frame member holding the inner surface of the tent is fixed to the guide member, the guide member efficiently guides the powdery or particulate matter falling from the bucket portion of the rotating ring body onto the conveyor belt surface. The tent frame material is fixed to the above-mentioned guide member, and it is not necessary to secure a special space for installing the frame material. This has the advantage that the tent can be compactly installed and the installation space of the equipment can be minimized.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing the entire configuration of a belt conveyor device of the present invention.

FIG. 2 is a longitudinal sectional front view showing a main part of the belt conveyor device of the present invention.

FIG. 3 is a longitudinal sectional side view showing a main part of the belt conveyor device of the present invention.

FIG. 4 is a side view showing a main part of the belt conveyor device of the present invention.

FIG. 5 is an enlarged front view of a drive wheel.

FIG. 6 is an enlarged vertical sectional view of a drive wheel.

FIG. 7 is an enlarged sectional view of a scraping member.

[Explanation of symbols]

Reference Signs List 1 belt conveyor 4b return- side belt surface 4a transport-side belt surface 13 rotating ring body 14 scraping member 19 bucket part 29 guide member 30 mounting frame 33 brush bundle 40 tent 41 frame material 42 wear-resistant resin plate 43 rubberized canvas 44 dust Anti-scattering material 45 Rubberized canvas

Claims (4)

(57) [Claims] Claims: 1. In the middle of a traveling route of a belt conveyor,
A rotating ring body is provided so as to pass through the conveyor-side belt surface and the return-side belt surface of the belt conveyor, and a plurality of bucket portions are formed on an inner peripheral surface of the rotating ring body.
Furthermore, a scraping member that slides on the return belt surface is disposed in a space between the return belt surface of the belt conveyor and the lower peripheral inner peripheral surface of the rotating ring body, and both end portions of the scraping member are disposed. In a belt conveyor device supported between mounting frames arranged on both sides of a belt conveyor, an upper half of a rotating ring body in an upper portion from a belt surface on a conveying side of the belt conveyor is supported by a frame material fixed to the mounting frame. Cover with the tent and the area near the scraping member
The dust that is scraped off and blown off by the scraping member
Belt conveyor device according to characterized in that a dust scattering prevention film material to receive. 2. The belt conveyor device according to claim 1, wherein a wear-resistant resin body is interposed between the frame material supporting the tent and the front and rear walls of the rotating ring body. 3. The tent is characterized in that a rubberized canvas is arranged at the lower end of the tent in a sudare shape.
3. The belt conveyor device according to 1. In the inner space of the 4. A rotary ring member, together with the provided by the free and the rotary ring member guide members for guiding the fall to particulate matter on the conveying belt surface, the guide member supporting a tent inner surface It is fixed to the frame member for lifting
Belt conveyor device according to any one of claims 1 to 3, characterized in that there.