JPH03216406A - Conveyor device - Google Patents

Abstract

PURPOSE:To prevent granules and powder held and conveyed by a supporting belt and a cover belt from leaking from spaces between both the belts by bringing a roller in contact with a liquid contained in a container into contact with both sides of the supporting belt. CONSTITUTION:A supporting belt 1 and a cover belt 2 are arranged to be opposed to each other so that they can be lapped one over the other, and granules and powder supplied from a hopper 14 are charged from an opening part A and held and conveyed by the overlapped belts 1, 2. On the return side close to a return roller 5b of the supporting belt 1, a roller applicator 15 for applying a liquid on both ends in the crosswise direction of the belt 1 and a liquid containing container 16 are arranged, and the roller applicator 15 is constantly brought into contact with the liquid in the container 16. Thus, the liquid applied on both ends in the crosswise direction of the supporting belt 1 diffuses on the overlapping parts of the belts 1, 2 to form paint films, and thus spaces generated between the belts 1, 2 are closed to prevent the granules and powder held and conveyed between the belts 1, 2 from leaking.

Description

[Detailed Description of the Invention] Field of Application in the Scraping Industry> The present invention utilizes two belts that are superimposed to sandwich a conveyed object including powder, vertically, or vertically. II This relates to a conveyor device for diagonal conveyance, which prevents powder from leaking to the outside from overlapping portions of belts.

<Prior Art> Today, various conveyor devices have been developed in which two belts are disposed facing each other and a conveyed object can be held and conveyed by these belts. Among them, special public service in 1983
- The technology disclosed in Japanese Patent No. 3288 is known as a conveyor device capable of conveying objects such as powder, granules, lumps, fluids, or mixtures thereof in an inclined direction including vertical direction.

The conveyor device is provided with a support belt and a cover belt facing each other, and applies tension in the longitudinal direction of these belts, and this tension acts between the objects to be transported and between the objects to be transported and the belt. It is conveyed by frictional force.

The conveyor device has curved conveyance in a transition section from a horizontal conveyance section that supplies the object to be conveyed to an inclined conveyance section including vertical conveyance, and a transition section from the inclined conveyance section to a horizontal conveyance section that supplies the object to the next process. The structure is such that smooth conveyance can be maintained by providing a section. The object to be conveyed is held between the support belt and the cover belt between the curved conveyance section, the inclined conveyance section, and the curved conveyance section. In the above configuration, the inclined conveyance section is usually configured to be capable of linear conveyance.

In addition, in order to prevent conveyed objects from leaking to the outside from overlapping parts on both sides of the belt in the width direction, a conveyor device has been developed in which a plurality of guide rollers are arranged along both sides of the overlapping belt ( (Japanese Unexamined Patent Publication No. 54-25078).

<Problems to be Solved by the Invention> The conventional conveyor device described above is configured to be able to transport two belts at the same speed.

However, in the curved conveyance section, a relative speed difference occurs between the two overlapping belts depending on the curvature of the curved conveyance section and the thickness of the belt. For this reason, minute voids are generated at the overlapping portions on both sides in the width direction of the two overlapping belts. Particularly, when the object to be transported is composed of objects with different particle sizes, such as a mixture of coal and powdered coal, or crushed incineration dust, it is said that the objects to be transported with small particle sizes leak outside through the gaps and scatter. There's a problem.

The applicant has developed a conhair device to solve the above problem and has already applied for a patent (Patent Application No. 1-35053).
issue). An object of the present invention is to provide a conveyor device that further develops the above technology.

Means for Solving the Problems> In order to solve the above problems, the conveyor device according to the present invention sandwiches the conveyed object by superimposing two belts disposed opposite to each other and conveys the conveyed object including the vertical direction. A conveyor device capable of inclined conveyance includes rollers for depositing a liquid on both sides in the width direction of a belt, and a container for storing the liquid, and the roller is used to deposit the liquid contained in the container. It is arranged so that it is in contact with the belt and in contact with the belt.

Effects> According to the above means, by storing the liquid in the container and providing a roller that comes into contact with the liquid and also contacts the belt, the liquid can be applied to the belt via the roller. When the two belts are polymerized, the liquid adhering to the belt diffuses into the overlapping portion of these belts to form a liquid film. The liquid film can close the voids that occur in the overlapping portions of the belt.

Therefore, small grains, powder, etc. constituting the conveyed object do not leak to the outside from the overlapping portion of the belt.

Embodiment> An embodiment of a conveyor apparatus to which the above means is applied will be described below with reference to the drawings.

FIG. 1 is an explanatory view of the entire conveyor device, FIG. 2 is an explanatory view of the main part, FIG. 3 is a view taken in the direction of arrows 1 and 2 of FIG. 2, and FIG. 4 is an explanatory view of superimposed belts.

First, the overall configuration of the conveyor device according to the present invention will be explained.

The conveyor device A shown in the figure is used for conveying powder such as pulverized coal and grains. Powder or granules of salt or sugar, lumps of coal or limestone, mixtures of coal and pulverized coal, mixtures of rock salt and salt. An object to be transported consisting of a mixture of powder and granules such as crushed incineration dust can be vertically transported from a low position to a high position or from a high position to a low position.

The support bell l-1 and the cover belt 2 are formed as endless belts. The support belt 1. Although a flat belt may be used as the cover belt 2, it is also possible to use a so-called belt with ears in which protrusions are continuously formed along the longitudinal direction of the belt at both ends in the width direction. It is also possible to use a combination of a flat belt and a belt with ears.

The support belt 1 and the cover belt 2 are formed of belts having the same strength. Furthermore, in the conveyor device having an S-shape as shown in this embodiment, the conveyed object is supplied onto the support belt 1 and is configured to be conveyed to the next process by the support belt 1. For example, when the conveyor device is configured in a C-shape, the conveyed object is supplied onto the support belt 1 and is configured so that it can be conveyed to the next process by the Cacher belt 2. Therefore, the support belt 1 and the cover belt 2 have substantially the same function.

In the conhair device A, a support belt 1 and a cover belt 2 are disposed facing each other so as to be able to overlap each other, and an opening 4 for receiving a conveyed object is provided at a position where these belts 1.2 overlap. It is formed. The support belt 1 is wound between a drive roller 5a provided at a high position, a tail roller 5b provided at a low position, and return rollers 5c and 5d, and is transported in the direction of arrow a. A drive motor (not shown) is connected to the drive roller 5a, and the drive motor is configured to transport the support belt 1 in the direction of arrow a. The tail roller 5b is supported by a take-up unit 6, and is configured so that a predetermined tension can be applied to the support belt 1 by operating this unit 6.

The cover belt 2 has a head roller 7 installed at a high position.
a, a tail roller 7b provided at a low position, and return rollers 7c and 7d.
It is driven by the support belt 1 due to contact friction with the support belt 1 and is transported in the direction of arrow a. The tail roller 7b is supported by a take-up unit 8, and by operating this unit 8, a predetermined tension can be applied to the cover belt 2.

Note that it is also possible to drive the cover belt 2 independently by connecting a drive motor to the head roller 7a.

The conveyor device A includes a horizontal conveyance section 9a extending from a tail roller 5b provided at a low position of the support belt 1 to a first curved conveyance section 9b, and a first curved conveyance section formed continuously with the horizontal conveyance section 9a. 9b, an inclined conveyance section 9c for inclined conveyance including vertical direction following this first curved conveyance section 9b, a second curved conveyance section 9d continuous with this inclined conveyance section 9c, and this second curved conveyance section 9d. and a horizontal conveyance section 9e following the horizontal conveyance section 9e.

An opening 4 is formed at the connection position between the horizontal conveyance section 9a and the first curved conveyance section 9b, and an open section 10 is formed at the connection position between the second curved conveyance section 9d and the horizontal conveyance section 9e.

A plurality of support rollers 11 are arranged in parallel in the conveyance direction in the horizontal conveyance sections 9a and 9e, and these support rollers 1
1, a predetermined trough angle is given to the support belt l. In the horizontal conveyance sections 9a and 9e, the objects to be conveyed are conveyed only by the support belt 1. In the first curved conveyance section 9b and the second curved conveyance section 9d, a plurality of support rollers l1 are arranged on an arc formed in the conveying direction of the belts 1 and 2, and these support rollers 1l support the belts 1 and 2. is curved with a predetermined curvature in the transport direction, and a predetermined trough angle is given to the support bell}1 or the cover belt 2 that contacts the support roller l1. That is, the first
In the curved conveyance section 9b, the support roller 11 imparts a trough angle to the cover belt 2, and the support belt 1 comes into close contact with the cover belt 2, so that the conveyed object can be held between the belts 1.2. It consists of Further, in the second curved conveyance section 9d, the support belt 1 is moved by the support roller 1l.
A trough angle is given to the bell k1 9F. "lL
Ichiyaritake: ≠Return to customer service, On L has completed the mission. In the inclined conveyance section 9C, a plurality of side rollers 12 are arranged in a staggered manner instead of the support roller l1, and these side rollers 12 overlap the support belt 1 and the cover belt 2 at both ends in the width direction. The overlapping portion 13 of the belt 1.2 is configured to be in close contact with each other. In the conveyor device A of this embodiment, in the first curved conveyance section 9b, the inclined conveyance section 9c, and the second curved conveyance section 9d,
As shown in Fig. 4, the support belt 1 and the cover belt 2 are overlapped, and both ends of the belt 1.2 in the width direction are brought into close contact with each other, thereby forming an overlapping part 13 and enveloping the conveyed object in a sheath shape. At the same time, the conveyed object is held between the widthwise central portions of the belts 1.2 and a pressing force is applied to the conveyed object, thereby creating contact between the conveyed objects. Friction, conveyed objects and belts 1.2
It is transported by the contact friction that acts between the

At the overlapping portion 13 of the support belt 1 and cover helt 2, the belts 1.2 are urged into close contact with each other by the tension acting on each belt. However, belt 1
．． Since the rigidity of the roller 2 is high and the trough angle is given by the support roller l1, there are vibrations that generate minute voids. In particular, since relative slippage occurs between the belts 1.2 in each of the curved conveyance sections 9b, 9d, these curved conveyance sections 9b, 9.2. A minute gap is generated in the overlapping portion 13 of the belts 1 and 2 at point d. For this reason, the powder contained in the conveyed object conveyed by the belt 1.2 is scattered to the outside through the gap.

A known hopper 14 is provided on the tail roller 5b side of the horizontal conveyance section 9a. The hopper 14 is supplied with a conveyed object, such as a mixture of powder and lumps such as crushed incineration dust, by a conveyor or packet (not shown) and accommodated therein. The objects to be conveyed accommodated in the hopper 14 are fed onto the support belt 1 in a fixed amount.

In the vicinity of the tail roller 5b and on the return side of the support belt 1, an application roller 15 for applying liquid to both ends of the belt 1 in the width direction and a container l6 for storing the liquid are arranged. .

The application roller 15 is a roller for applying a liquid such as water contained in a container 16 to the support belt 1 . Further, the container l6 is a container for storing a liquid to be attached to the support belt 1. For this purpose, the application roller 15 and the container 16 are constructed as shown in FIGS. 2 and 3.

The application roller l5 is constructed by detachably attaching sleeves 15b made of abrasion-resistant rubber or the like to both sides of a shaft 15a in the longitudinal direction. This application roller 15 is a sleeve 15
b is configured so that it can come into contact with the support belt 1 with an appropriate pressing force. Further, the application roller 15 is supported by a support belt l.
It is configured to be able to follow the movement of the support belt i due to contact friction with the support belt i.

The container 16 is a sleeve 15b attached to the application roller l5.
The dimensions are such that it can reliably come into contact with the liquid. The container 16 has a support portion 16a for supporting the application roller 15.
is formed, and an application roller 15 is mounted on this support portion 16a.
is rotatably supported.

The container 16 is provided with a maintenance means for maintaining a constant level of the liquid contained therein. This liquid level must be set at a position where the sleeve 15b of the application roller 15 can reliably come into contact with the liquid.

As the maintaining means, it is possible to use a sensor such as a level sensor that detects the surface of the liquid and generates a signal, but in this embodiment, as shown in the figure, a known ball tap 17 is used. By connecting this pole tap 17 to the pipe 18 for tap water or gray water, the container l6
The structure is configured to maintain a constant liquid level and to supply liquid. That is, when the liquid level decreases below a certain level, the pole tap 17 opens to supply liquid to the container 16, and when the liquid level reaches a certain level, the bowl knob 17 closes, thereby stopping the supply of liquid. It is configured so that it can be stopped. Note that 19 is a valve for discharging the liquid contained in the container 16.

As described above, in this embodiment, the application roller 15 is supported by the support part 16a formed in the container 16, but a bearing is attached to the frame of the conveyor device A (not shown) via an elastic member such as a spring. The application roller 15 may be supported by a bearing.

In this example, water is used as the liquid.However, liquids other than water with appropriate viscosity, such as vegetable oil or mineral oil, may also be used. It is possible to use adhesive or the like. These liquids can be appropriately selected and used depending on the properties of the object to be transported and the materials of the belts 1 and 2. That is,
Incineration dust, coal. When transporting items such as limestone,
It is preferable to use water as the liquid from the viewpoint of cost.

Furthermore, when the objects to be transported are foods such as grains, salt, sugar, etc., it is preferable to use water, edible oil, or the like.

However, when cement is the object to be conveyed, it is not preferable to use water, and when belts 1 and 2 are made of rubber other than oil-resistant rubber, it is not preferable to use mineral oil, etc. .

Application roller 15. By configuring the container 16 as described above, it becomes possible to apply the liquid to the support belt 1 according to the dimensions of the sleeve 15b of the application roller 15.

In this embodiment, the dimensions of the sleeve 15b are set so that the width of the liquid to be deposited on the support bell 1 is about 50 mm. Next, a case will be described in which a conveyed object made of powder or a mixture of powder and lumps is conveyed by the conveyor device A configured as described above.

First, the drive roller 5a is driven by a drive motor (not shown), and the support belt 1 is transported in the direction of the arrow a.

Along with this transfer, the cover belt 2 is moved in the direction of arrow a. Further, as the support belt 1 is transferred, the application roller l5 in contact with this belt 1 rotates, and the support belt 1
The liquid is applied to a width of about 50 m on both sides in the width direction.

Next, objects to be transported such as incineration dust are supplied to the hopper 14 by a conveyor or a packet (not shown). The object to be conveyed is continuously fed in a fixed amount from the hopper 14 to the center portion of the support belt 1 in the width direction.

The support belt 1, on which the object to be transported is placed in the center and liquid is attached to both sides in the width direction, is transferred from the horizontal transport section 9a to the first curved transport section 9b, and is overlapped with the cover belt 2. Then, the superposed support belt 1 and cover belt 2 have their transport direction changed by 90 degrees in the first curved transport section 9b, and are introduced into the inclined transport section 9c. Next, the superposed support belt 1 and cover belt 2 are changed in the transport direction by 90 degrees in the second curved transport section 9d,
It is introduced into the horizontal conveyance section 9e. The object to be transported is then supplied to the next process from the end of the horizontal transport section 9e.

Each curved conveyance section 9b, 9 in the conveyance process of the above-mentioned object to be conveyed.
At step d, as shown in FIG. 4, the liquid adhering to both sides of the support belt l in the width direction diffuses into the overlapping portion 13 of the belt 1.2 to form a liquid film 2o. This liquid M20 makes it possible to close the minute gaps generated between the support belt 1 and the cover belt 2 in each curved conveyance section 9b, 9cl.

Therefore, it is possible to prevent powder from leaking in each curved conveyance section 9b, 9d. Further, by applying liquid to both sides of the support belt 1 in a width of about 50 m, when the support belt 1 and the cover belt 2 are superposed, the belt 1.
Even if the internal pressure of the space constituted by 2 increases, the liquid film 20 formed in the overlapping part 13 will not be destroyed, and therefore it is possible to improve the sealing performance in the overlapping part 13. .

In the above embodiment, the liquid was applied to the support belt 1, but it may also be applied to the cover belt 2. Further, in the above-described embodiment, the application roller 15 is arranged near the tail roller 5b and on the return side of the support belt 1, but it may be arranged at another position. However, when applying liquid to the support belt 1 or the cover belt 2, it is easy to do so without providing any troughs to these belts 1.2. Effects of the Invention> As explained in detail above, according to the conveyor device according to the present invention, by storing a liquid in a container and providing a roller that comes into contact with this liquid and comes into contact with a belt,
Liquid can be applied to the belt via this roller. When two belts polymerize, the liquid adhering to the belts diffuses into the overlapping parts of these belts to form a liquid film, and this liquid film can close the voids that occur in the overlapping parts of the belts. Because of this, the particles that make up the transported object are small in size. It has the characteristics that powder, etc. will not leak to the outside from the overlapping part of the belt.

[Brief explanation of drawings]

Fig. 1 is an overall explanatory diagram of the conveyor device, Fig. 2 is an explanatory diagram of the main parts, Fig. 3 is a view taken along the ■-■ arrow in Fig. 2, and Fig. 4 is an explanatory diagram of the overlapping belts. A is a conveyor device, 1 is a support belt, 2 is a cover belt, 4 is an opening, 5a is a drive roller, 5b, 7b are tail rollers, 6.8 is a take-up unit, 7a is a navel, a drawer, 9a. 9e is a horizontal conveyance section, 9b and 9d are curved conveyance sections, 9c is an inclined conveyance section, lO
1 is an open part, 11 is a support roller, 12 is a side roller, 1 is a side roller, and 1 is a support roller.
3 is a polymerization section, 14 is a hopper, 15 is an application roller, 15
a is a shaft, a pole tap, 15b a sleeve, 16 a container, 18 a pipe, and 20 a liquid film. 17 is

Claims (1)

[Claims] A roller for applying liquid to both sides of the belt in the width direction in a conveyor device capable of sandwiching and conveying an object at an angle including vertically by overlapping two belts placed opposite each other. and a container for accommodating the liquid, the roller being arranged so as to be in contact with the liquid contained in the container and also in contact with a belt.