WO2020027438A1

WO2020027438A1 - Sintering apparatus for artificial lightweight aggregate, and artificial lightweight aggregate manufacturing system including same

Info

Publication number: WO2020027438A1
Application number: PCT/KR2019/007583
Authority: WO
Inventors: 박종봉; 박화순
Original assignee: 라이트쎄라믹스 주식회사
Priority date: 2018-07-30
Filing date: 2019-06-24
Publication date: 2020-02-06
Also published as: KR101942003B1

Abstract

Provided is a sintering apparatus for manufacturing an artificial lightweight aggregate that has favorable grade and quality and can be continuously mass produced using a carriage, the sintering apparatus comprising: a carriage moving along a rail; a hopper for supplying the carriage with a molded body; an ignition furnace provided below the rail and igniting the molded body charged in the carriage; and a plurality of wind boxes provided below the rail and supplying outside air to the molded body ignited by the ignition furnace. The sintering apparatus has a configuration in which the ignition furnace ignites the bottom surface of the molded body charged in the carriage, and the plurality of wind boxes blow the outside air into the lower portion of the carriage in which the molded body having the ignited bottom surface is charged. Thus, the sintering apparatus can manufacture an artificial lightweight aggregate that has favorable grade and quality and can be continuously mass produced.

Description

Sintering apparatus for artificial lightweight aggregate and artificial lightweight aggregate manufacturing system including the same

The present invention relates to a sintering apparatus for artificial light aggregates and a system for manufacturing artificial light aggregates including the same, in particular, a sintering apparatus for artificial light aggregates for producing artificial light aggregates using inorganic solid waste containing unburned carbon or organic matter, and the same It relates to an artificial lightweight aggregate manufacturing system.

Lightweight aggregate refers to aggregates that have a smaller specific gravity (less than 2.0) than aggregates commonly used to reduce the weight of concrete.For lightweight aggregates, artificial aggregates are made by roasting them with expanded shale, expandable clay, and fly ash as main ingredients. There are light aggregates and natural light aggregates such as volcanic rock, tuff and lava.

In recent years, artificial lightweight aggregates are mainly manufactured using waste resources. For example, coal ash, paper sludge dewatering cake, sewage sludge dewatering cake, water purification plant sludge dewatering cake, and ready-mixed concrete facilities. Various studies are being actively conducted to manufacture artificial light aggregate by recycling waste resources such as stone powder washing sludge dewatering cake.

In addition, development of an apparatus for manufacturing such artificial lightweight aggregate is being made, for example, Korean Patent No. 10-0943243 (registered on February 11, 2010, hereinafter referred to as "Patent Document 1") Disclosed is a fluidized bed vertical kiln firing apparatus for producing light fine aggregate, and Korean Patent Publication No. 10-2017-0116928 (published on October 20, 2017, hereinafter referred to as "Patent Document 2") using coal ash containing unburned carbon. An apparatus for manufacturing artificial lightweight aggregate is disclosed, and Korean Patent No. 10-1187280 (registered on September 21, 2012, hereinafter referred to as "Patent Document 3") discloses an artificial aggregate manufacturing apparatus using coal ash.

Patent Documents 1 to 3 all disclose a vertical sintering or sintering apparatus, such a vertical sintering or sintering apparatus has a problem that the continuous mass production of artificial lightweight aggregate is difficult due to the characteristics of the structure.

On the other hand, the present inventors continuously produce sintered ores by using a trolley moving on a tracked running rail of the track, so that the sintering device of the Dwight Lloyd type which enables mass production of sintered ores is applied to the sintering apparatus for manufacturing artificial lightweight aggregate. By focusing on overcoming the limitations of the conventional apparatus for producing artificial fine aggregates, the present invention has been started.

This Dwight Lloyd method has been mainly used in the sintering apparatus for producing sintered ore used as a raw material in the blast furnace iron sintering process, as an example, Korean Patent Publication No. 10-2018-0047213 (published May 10, 2018, below) ("Patent Document 4") is a trolley for charging a sintered raw material and moving in a sintering process advancing direction, an ignition furnace installed so as to spray a flame from the upper side of the raw material charged in the trolley to the raw material layer, and the trolley conveyed. Disclosed is a sintering apparatus, which is provided at a lower side of a conveyor to include a plurality of wind boxes for sucking outside air into a trolley.

However, the sintering apparatus disclosed in Patent Document 4 is a sintering apparatus for producing a sintered ore, and when used as a sintering apparatus for manufacturing artificial lightweight aggregate, the following problems occurred.

First, in the case of Patent Document 4, since the ignition furnace injects a flame from the upper side of the raw material loaded in the trolley, and the plurality of windboxes installed under the trolley suck the outside air from the upper side of the trolley, the raw material loaded in the trolley Sintering proceeds from above to below. Therefore, while the water contained in the upper layer in the trolley is evaporated toward the raw material loaded in the lower layer, which is still sintered, the lower raw material layer is charged in the upper layer throughout the sintering process in the soft state before sintering. The load of the raw material and the wind pressure caused by the outside air sucked from the upper side to the lower side in order to sinter the loaded raw material are subjected to.

That is, the raw material layer charged in the lower layer in the trolley is sintered under the influence of moisture evaporated during the process of sintering the raw material of the upper layer, the load by the raw material layer loaded on the upper layer, and the wind pressure by suction of the windbox. Deformation or damage occurs before this even, there is a problem that it is difficult to obtain an artificial lightweight aggregate of even specifications.

Second, in the case of Patent Document 4, a plurality of wind boxes are installed at the lower side of the trolley to draw outside air from the upper side of the trolley to the raw material layer, and also serve as a discharge passage of the exhaust gas during the sintering process of the raw materials charged into the trolley. . That is, in the process of sucking the wind box to supply air to the raw material layer, the exhaust gas generated in the sintering process of the raw material is sucked into the wind box.

Therefore, dust or sintered particles contained in the exhaust gas generated during the sintering of the raw materials charged into the trolley are sucked into the wind box, which causes a problem that the suction function of the wind box is deteriorated. Problems will arise.

In other words, in order to sinter the molded body of artificial lightweight aggregate to an appropriate quality, the air volume at each sintering step needs to be controlled to an appropriate amount, which is caused by the dust contained in the exhaust gas generated during the sintering process of raw materials If the box is blocked and the flow of air is not smooth, the suction function of the windbox may be deteriorated, which may cause a defect due to unburned or heterogeneous combustion.

Due to these problems, despite the advantage that the sintering apparatus disclosed in Patent Document 4 can be continuously mass-produced using a trolley, it has not been used at all in the manufacture of artificial lightweight aggregate which requires uniform size or quality. have.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and is intended to provide a sintering apparatus for manufacturing artificial lightweight aggregate which is capable of mass production continuously by bottom-up combustion and has good specifications and quality.

In addition, the present invention is to provide an artificial lightweight aggregate manufacturing system comprising a sintering apparatus and a molding apparatus for producing a molded body supplied to the sintering apparatus.

The sintering apparatus for artificial light aggregate of the present invention is a bogie moving along a rail, a hopper for supplying a molded body to the bogie, and an ignition provided at the lower side of the rail to ignite the molded body inserted into the bogie, which is provided below the rail. And a plurality of windboxes for supplying external air to the molded body complexed by the ignition furnace, wherein the ignition furnace complexes the lower surface of the molded body charged into the trolley, and the plurality of windboxes are complexed with the lower surface. It is characterized in that for blowing the outside air into the lower portion of the trolley charged with a molded body.

In addition, the sintering apparatus for artificial light aggregate of the present invention further comprises an exhaust duct for collecting and dusting dust or gas generated from the molded body charged in the bogie moving along the rail, wherein the exhaust duct is at least the ignition furnace And spaced apart from an upper side of the rail in a section in which a plurality of wind boxes are installed.

Further, a partition member is provided below the hopper of the sintering apparatus for artificial light aggregate of the present invention for partitioning the molded object storage space in the empty bogie that has entered the lower side of the hopper, and the partition member Both sides are charged with a fine aggregate molded body, the center is characterized in that the guide is inserted into the molded aggregate for coarse aggregates.

In addition, the trolley of the sintering apparatus for artificial light aggregate of the present invention is a front, rear and top of the open state, consisting of the left and right side wall portion and the bottom portion, the partition member for partitioning the right space in the bogie A plate-shaped first partition member, a plate-shaped second partition member for partitioning the left space in the bogie, a plate-shaped third partition member for temporarily closing the rear surface of the bogie, the first partition member and the second partition member And a rod-shaped fourth partition member provided across the front upper surface.

In addition, the artificial lightweight aggregate manufacturing system of the present invention includes a molding apparatus and a sintering apparatus, the sintering apparatus is the sintering apparatus for artificial lightweight aggregate, the molding apparatus is a seed of the molded body using the finely ground mixed powder It is characterized in that the molding apparatus for artificial light aggregate comprising a seed molding unit for molding, a molded body growth unit for growing the seed formed from the seed molding unit into a molded body.

In addition, the seed molding portion of the artificial lightweight aggregate manufacturing system of the present invention includes a cylindrical body portion having a circular cross section extending in the horizontal direction, a rotation shaft provided across the center of the inside of the body portion and rotatable in a predetermined direction, The inside of the main body is divided into a stirring zone and a molding zone from one side to the other side, and a powder raw material inlet and a caking water input nozzle are formed on the upper surface of the main body of the portion where the stirring zone is formed, and the stirring shaft of the rotating shaft portion is In a portion corresponding to the region, a plurality of blades for mixing and kneading the powder raw material and caking water are provided at regular intervals along the rotating shaft portion, the stirring region in the portion corresponding to the forming region of the rotating shaft portion, The dough of the powder raw material and caking water which moved from By repeating the process by a plurality of coupling for forming a formed body contact the seed cut of the fin portion is characterized in that the axis of rotation disposed apart at regular intervals along.

In addition, the molded body growth portion of the artificial lightweight aggregate manufacturing system of the present invention is made of a circular side wall and the bottom surface, and the disk and the disk for growing the molded body formed by molding the seed by rotating the seed in a constant direction It comprises a rotary shaft to the bottom, characterized in that the bottom portion is formed by applying the powder material and caking water of the same component as the molded body seed on the bottom surface of the disk.

According to the present invention, it is possible to continuously mass production by using a trolley, but it is possible to manufacture artificial lightweight aggregate having good specifications and quality.

1 is a view showing the front of the artificial lightweight aggregate manufacturing system of the present invention,

Figure 2 is a view showing a plane of the artificial lightweight aggregate manufacturing system of the present invention,

3 is a view showing the seed (seed) molding portion of the present invention,

4 is a view of the blade in FIG.

5 is a view showing another embodiment of the seed molding of FIG.

6 is a view showing the configuration of the scraper in FIG.

FIG. 7 shows another embodiment of the placement of blades and scrapers in FIG. 5, FIG.

8 is a view showing the configuration of the pin in Figures 3 and 5,

9 is a view showing a molded article growth portion of the present invention,

FIG. 10 is a view showing another embodiment of the molded object growth unit of FIG. 9;

11 is a view showing the configuration of the rotary knife in Figs. 9 and 10,

12 is a view showing the dropping range of the molded body seeds in FIGS. 9 and 10;

13 is a view showing a sintering apparatus of the present invention,

14 is a view showing a bogie used in the sintering apparatus of the present invention,

15 is a view for explaining the problems and solutions of the bottom-up sintering method,

16 is a photograph of the result of the calculation in the process of solving the problem of the bottom-up sintering method,

17 is a view showing the hopper and the partition member of the present invention,

18 is a view for explaining charging of a molded article by the hopper and the partition member of the present invention.

Hereinafter, the artificial lightweight aggregate manufacturing system of the present invention will be described in detail with reference to the drawings.

First, the artificial lightweight aggregate manufacturing system of the present invention, as shown in Figures 1 and 2, the raw material supply unit 100 and the raw material supply unit 100 including a mixed grinding unit 120, and the raw material supply device Seed forming part 200 for forming a seed of the molded body using the raw material supplied from the (100) and molded body growth unit 300 for growing the molded body seed molded from the seed forming unit 200 into a molded body And a sintering apparatus 400 for sintering the molded body formed by the molding apparatus into artificial lightweight aggregate, and the artificial lightweight aggregate manufactured by the sintering apparatus 400 to separate, transport and It includes an artificial light aggregate discharge device for sorting.

Raw material supply device (100)

The raw material supply device 100, as shown in Figure 1 and 2, by mixing the raw material storage unit 110 and the raw material supplied from the raw material storage unit 110 for storing the raw material of the artificial lightweight aggregate It includes a mixed grinding unit 120 to grind.

The raw material storage unit 110 is composed of a plurality of storage tanks for storing the raw material of the artificial lightweight aggregate, each storage tank is a raw material for manufacturing the artificial lightweight aggregate, for example, discharged during the thermal power generation process Coal ash, paper sludge dewatering cake, sewage sludge dewatering cake, water purification plant sludge dewatering cake, stone washing sludge dewatering cake from the ready-mixed plant, clay or other additives can be stored.

In addition, the raw materials stored in the raw material storage unit 110 is metered at a ratio suitable for manufacturing the artificial lightweight aggregate and supplied to the mixed grinding unit 120, the raw materials supplied to the mixed grinding unit 120 is mixed In the crushing unit 120 is evenly mixed and pulverized.

[Molding apparatus]

The molding apparatus is a device for molding the mixed powder pulverized in the mixed grinding part 120 into the molded body for artificial light aggregate, as shown in FIGS. 1 and 2, the mixed grinding part 120 And a seed molding part 200 for molding into a molded seed by using the finely ground mixed powder in the mold, and a molded part growth part 300 for growing a molded seed molded from the seed molding part 200 into a molded body. .

First, as shown in FIG. 3, the seed forming part 200 includes a cylindrical main body 210 having a circular cross section extending in a horizontal direction, and a rotation shaft provided across a center of the inside of the main body 210. A part 220, a motor part 230 connected to one side of the rotating shaft part 220 to forward / reverse rotation of the rotating shaft part 220, and a discharge part 260 provided at the other side of the main body part 210. ).

The body portion 210 is a hollow cylinder, the inside of which is divided into a stirring region (A) and a molding region (B) from one side to the other side, the body portion 210 of the portion where the stirring region (A) is formed The upper surface of the powder raw material inlet 211 and the caking water input nozzle 212 is formed in the upper surface.

In addition, the rotating shaft portion 220 is a rotating shaft provided across the center of the main body portion 210 so as to be rotatable by the motor unit 230, the stirring region of the rotating shaft portion 220 ( A portion corresponding to A) is provided with a plurality of blades 240 spaced apart at regular intervals along the rotating shaft portion 220, and a plurality of pin portions in the portion corresponding to the forming region B of the rotating shaft portion 220. 250 is provided along the rotation shaft 220 at regular intervals.

First, as shown in FIG. 4A, the blade 240 includes a shaft 242, a wing 244 provided at one end (top) of the shaft 242, and the blade 244. And a pressure absorbing part 243 provided on the shaft 242 on the lower side (the rotating shaft part 220 side), and the other end (lower end) of the shaft 242 is a holder 241 provided on the rotating shaft part 220. ) Is provided to be detachable.

At this time, the blade 244 is in the shape of a concave spatula facing the forming area (B), the upper surface (b), as shown in Figure 4 (b), the said of the rotating shaft portion 220 It inclines by (theta) (= 20-40 degrees) with respect to the longitudinal direction a toward the shaping | molding area B. As shown to FIG. That is, the blade 244 is provided to be inclined by θ with respect to the longitudinal direction a toward the molding area B of the rotation shaft part 220.

As such, the blade 244 is provided to be inclined at a predetermined angle θ with respect to the longitudinal direction a of the rotary shaft 220, so that the blade 244 may rotate by the rotary shaft 220. At this time, a fan effect that induces the flow of air toward the molding region (B) occurs.

Thus, as shown in FIG. 3, when the plurality of blades 240 are spaced apart at a predetermined interval one by one along the rotating shaft part 220, the blades 240 adjacent to each other may be formed. It is preferable to be provided at positions opposite to each other (rotated by 180 °) along the circumference of the rotary shaft 220.

That is, in the present invention, by providing a plurality of the blades 240 to rotate along the rotary shaft portion 220 as described above, the powder supplied to the stirring region (A) through the powder raw material inlet 211 Raw material and the caking water supplied to the caking water input nozzle 212 are moved toward the forming region B by the blades 244 of the plurality of blades 240, and the plurality of blades 240 Repetitive stirring is achieved by the vanes 244.

That is, the powder raw material and the caking water are moved to the forming region B by the blades 244 of the plurality of blades 240, and thus the powder raw material and the caking water are sequentially and repeatedly stirred. Mix evenly into dough.

However, as described above, while the blade 240 is rotated, the raw material and caking water added to the stirring zone (A) by the blade 244 evenly mixed and kneaded, and further, the blade 244 Due to the movement of the raw material kneaded by the molding area (B), a lot of pressure is applied to the blade 244, which may cause damage to the blade 244.

Therefore, in this invention, the pressure absorbing part 243 is provided in the lower side (the said rotating shaft part 220 side) of the said blade 244.

That is, the pressure absorbing unit 243 absorbs the pressure received by the wing 244 in the process of stirring and kneading the powder raw material and the caking water while the wing 244 rotates, thereby receiving the wing 244. By mitigating the pressure, the blade 244 can be prevented from being damaged by the pressure received in the process of stirring and kneading the powder material and caking water.

However, the powder raw material and the caking water added to the stirring zone (A) is in the state that the dough is completed, most of the moving to the forming zone (B) by the blade 244 of the blade 240, but some of the stirring In the process of mixing and kneading in the region (A), there is a problem of pressing on the inner surface of the main body portion 210 in the stirring region (A),

In this way, the raw material pressed against the inner surface of the body portion 210 in the stirring region A is the blade 244 of the blade 240 rotating near the inner surface of the body portion 210 in the stirring region A. On the other hand, the pressure is applied to the blade 244 of the blade 240 to rotate, but the mixing and kneading by the blade 244 of the blade 240 is carried out. In addition to making it difficult, it also causes the blade 240 to accelerate the breakage of the blade 244.

Thus, as shown in Figure 5, the portion of the rotating shaft portion 220 corresponding to the stirring zone (A), kneading pressed to the inner surface of the body portion 210 in the stirring zone (A) It is preferable to further include a plurality of scrapers 270 that can scrape the raw material.

That is, the plurality of blades 240 and the plurality of scrapers 270 are alternately fixed one by one along the length of the rotation shaft 220 in a portion corresponding to the stirring region A of the rotation shaft 220. Spaced apart from each other, the neighboring blade 240 and the scraper 270 is provided at opposite positions (rotated 180 °) along the circumference of the rotary shaft 220.

In addition, as shown in FIG. 6A, the scraper 270 includes a shaft 272, a blade 274 provided at one end of the shaft 272, and a lower side of the blade 274. And a pressure absorbing part 273 provided on the rotating shaft part 220 side, and the other end of the shaft 272 is inserted into the holder 271 provided on the rotating shaft part 220 to be detachable.

The scraper 270 basically has a structure similar to that of the blade 240, but differs from the blade 244 of the blade 240 in the blade portion 274.

That is, the shaft 272, the pressure absorbing portion 273, and the holder 271 of the scraper 270 may include the shaft 242, the pressure absorbing portion 243, and the holder 241 of the blade 240 and a structure thereof. And functions are the same.

In addition, since the blade portion 274 of the scraper 270, the upper end portion is made of a fork shape so as to easily scrape the kneaded raw material pressed on the inner surface of the main body portion 210 in the stirring region (A), There is a difference from the blade 244 of the blade 240.

That is, since the blade 274 of the scraper 270 also has a fork shape only at the upper end, as in the blade 240 and the blade 244, a whirlwind effect can be generated by rotation, and the upper end is Since it is in the shape of a fork, it is easier to scrape the kneaded raw material pressed against the inner surface of the main body portion 210 in the stirring region (A) than the blade 240 blade 244.

In addition, in the scraper 270, as shown in FIG. 6B, the upper surface c of the blade 274 faces the forming region B of the rotation shaft 220. To be inclined by θ ₁ with respect to the longitudinal direction (a), that is, the blade portion 274 to be inclined by θ ₁ with respect to the longitudinal direction (a) facing the opposite of the forming area (B) of the rotary shaft portion 220 It is provided on the rotating shaft 220.

That is, the blade 240 and the scraper 270, the top surface (b) of the blade 244 of the blade 240 and the top surface (c) of the blade portion 274 of the scraper 270 are respectively It is disposed to be inclined at an angle with respect to the longitudinal direction (a) of the rotary shaft portion 220, the top surface (b) of the blade 244 of the blade 240 and the top surface of the blade portion 274 of the scraper 270 (c) is disposed so as to be inclined in opposite directions with respect to the longitudinal direction a of the rotary shaft portion 220, respectively.

Therefore, when the blade 240 and the scraper 270 rotate by the rotation of the rotary shaft 220, the blade 244 of the blade 240 and the blade 274 of the scraper 270 are mutually Induces a whirlwind effect in the opposite direction.

That is, when the rotation shaft 220 is rotated, a whirlwind effect is induced to induce air flow toward the forming region B by the blades 244 of the blade 240, and the scraper 270. The blade portion 274 of the blast effect to induce the flow of air in the opposite direction to the forming region (B) is generated.

At this time, the angle of inclination θ formed by the blade 244 of the blade 240 and the longitudinal direction a of the rotary shaft 220, and the blade 274 of the scraper 270 is the rotary shaft 220 It is preferable to make it larger than the inclination angle (theta) ₁ formed with the longitudinal direction (a) of ().

That is, the inclination angle θ of the blade 244 of the blade 240 is larger than the inclination angle θ ₁ of the blade portion 274 of the scraper 270, thereby the blade 244 of the blade 240. The blowing effect in the forming area B direction is larger than the blowing effect in the direction opposite to the forming area B by the blade portion 274 of the scraper 270, and the forming area B as a whole. To induce the flow of air.

Therefore, the powder raw material introduced into the stirring region A by the powder raw material inlet 211 and the caking water input nozzle 212 formed on the upper surface of the body portion 210 of the portion where the stirring region A is formed. And caking water appears to move in place in a suspended state while temporarily stagnant by a whirlwind effect formed in opposite directions by the blade 244 of the blade 240 and the blade 274 of the scraper 270. , As a whole, moves in accordance with the flow of air formed in the forming region (B) direction.

Specifically, the powder raw material and the caking water introduced into the stirring region A first move in the direction of the forming region B by the blade 244 of the blade, but the blade portion 274 of the scraper located next. Due to the flow of air formed in the opposite direction by), the powder raw material and the caking water become suspended, while the moving speed decreases, congestion occurs. Of course, at this time, since the gust effect by the blade 244 of the blade is greater than the gust effect by the blade portion 274 of the scraper acting in the opposite direction, the overall flow of the powder material and caking water is maintained while maintaining the floating state. It moves in the molding region B direction.

That is, the powder raw material and the caking water introduced into the stirring zone A are stagnated in a suspended state by the flow of air formed in opposite directions to form and mix, while the forming zone B is kneaded. Direction).

On the other hand, Figure 7 is another embodiment showing the arrangement of the blade 240 and the scraper 270, the blade 240 and the scraper 270, along the circumference of the rotary shaft portion 220 It is arranged to be positioned alternately with each other at 90 ° intervals.

That is , the blade 240 and the scraper 270, the blade 240 and the scraper 270 are alternately arranged with each other at a predetermined interval in the longitudinal direction of the rotary shaft portion 220, the neighboring blade ( The 240 and the scraper 270 may be disposed at a position moved at 90 ° intervals along the circumference of the rotation shaft 220.

In addition, the two blades 240 are arranged in pairs at 180 ° intervals along the circumference of the rotary shaft 220 at the same position in the longitudinal direction of the rotary shaft 220, and the rotary shaft 220 The two scrapers 270 are arranged in pairs at a distance of 180 ° along the circumference of the rotating shaft part 220 at a predetermined distance in a longitudinal direction, but a pair of neighboring blades 240 and a pair of scrapers are disposed. 270 is intersected with each other to have a phase difference of 90 ° along the circumference of the rotating shaft part 220, so that the blade 240 and the scraper 270 are viewed from one side or the other side of the rotating shaft part 220. In addition, it may be arranged to alternately appear at intervals of 90 ° along the circumference of the rotary shaft 220.

As such, the plurality of blades 240 and the scraper 270 are provided in the rotary shaft portion 220 in the stirring region A, thereby supplying the powder raw material and the caking water to the stirring region A. While kneading evenly by the blade 240 to move to the forming region (B), the raw material pressed on the inner surface of the body portion 210 in the stirring region (A) is scraped off by the scraper (270) to the blade It is moved to the forming region (B) while stirring by 240.

Next, the molding region B is a region for molding the kneaded raw material that has been moved in the stirring region A into a molded seed having a predetermined size, and the molding region B of the rotating shaft part 220. A plurality of pin portions 250 are provided at regular intervals.

As shown in FIG. 8, the pin part 250 includes a pin 252 whose head 253 is thicker than the middle part, and a lower end of the pin 252 is provided on a holder (not shown) in the rotating shaft part 220. 251 is provided to be detachable.

In addition, as shown in FIGS. 3 and 5, in the forming region B, the two pin parts 250 are disposed at opposite positions (rotated by 180 °) along the circumference of the rotating shaft part 220. It is provided as one set, and a plurality of sets are arranged at regular intervals along the longitudinal direction of the rotary shaft 220, but is not limited thereto. For example, one pin portion 250 may be configured in one set, or four pin portions 250 may be arranged in a set by arranging the four pin portions 250 at intervals of 90 ° along the circumference of the rotation shaft portion 220. .

By such a configuration, the kneaded raw material that has been moved from the stirring region A to the molding region B is split into small particles by the plurality of pin portions 250 in the molding region B, In addition, the split particles and the particles are contacted with each other to repeat the process of forming a molded seed of a certain size.

At this time, the size of the molded body seed formed in the molding region (B) is determined by the moisture content of the kneaded raw material, the number of the pin portion 250 and the interval in the longitudinal direction, the rotational speed of the rotating shaft portion 220, and the like. .

That is, the higher the water content of the raw material, the larger the size of the particles and particles and the bonding force, and the smaller the number of the pin parts 250 and the wider the interval in the longitudinal direction, and the slower the rotational speed of the rotating shaft part 220, the molded body. The seed will grow.

As such, the molded seeds molded in the molding region B may be molded to a predetermined size, but do not have a dense and rigid configuration.

Therefore, the molded seed is supplied to the molded product growing part 300 via the discharge part 260 and grown into a molded product. Here, "grown up" means that the molded seed and the molded seed are combined to be formed into a rigid molded body as the size thereof increases, and of course, the molded seed is molded into a rigid molded body while the size of the molded seed is maintained as it is.

As shown in FIG. 9, the molded body growth part 300 includes a disk 310 having a circular sidewall and a bottom surface, a frame 320 for supporting the disk, and the disk 310 in a predetermined direction. A rotating shaft 330 to rotate, a tilt adjusting unit 340 provided at a lower end of the rotating shaft 330 to incline the disk 310 at a predetermined angle, and an upper side of the frame 320 of the disk 310. It includes a crosspiece 350 across the top surface, and at least one rotary knife portion 360 provided on the crosspiece 350.

First, the disk 310 is for growing (molding) a molded seed (raw material) into a molded body by rotating in an inclined state, as shown in FIG. 9, extending from a circular side wall and a side wall to a lower surface thereof. The bottom surface 311 is formed in a circular pot shape formed by sealing the bottom surface and the top surface is opened, and the bottom surface is provided with a bottom portion 311 made of the same components as the raw material of the molded seed, wherein the top surface of the bottom portion 311 is a molded seed. It functions as a bottom surface to be rolled in the process of growing into a molded body.

That is, the bottom portion 311 is formed by applying a material and caking water made of powder having the same components as the raw materials of the molded body seeds molded into the molded body by the disk 310 on the bottom surface of the disk 310. .

In this case, however, in the case where the bottom portion 311 is formed by applying only the material and the caking water made of the same powder as the raw material of the molded seed, the disc 310 is formed to grow the molded seed into a molded product. When rotating at an angle, when the force acting on the material of the bottom 311 by the rotation of the disk 310 is greater than the coupling force between the materials of the bottom 311, the bottom 311 is formed. There is a risk of the material falling off.

Therefore, in the molded object growth part 300 of this invention, several nail-shaped studs 312 which have a plate-shaped head are provided in the bottom face of the said disc 310 relatively densely, and the said bottom part 311 Is formed by coating a material and caking water of powder having the same components as the raw materials of the molded seed on the bottom surface of the disk 310 in which the plurality of studs 312 are provided relatively densely.

That is, in the present invention, since the plurality of studs 312 are positioned between the materials forming the bottom 311, the disk 310 is attached to hold the materials of the bottom 311. Even when rotated in an inclined state, the materials of the bottom 311 can be stably held in the bottom 311 without being separated from the disk 310.

In addition, since the top surface, that is, the bottom surface of the bottom part 311 functions as a surface on which the molded material is rolled in the process of growing the molded seed into the molded body, the material for forming the bottom part 311 is the stud. It is necessary to apply so that it may cover to the upper end of 312, and the top surface, ie, the bottom surface, of the bottom part 311 needs to maintain a horizontal surface.

In addition, the bottom portion 311 is formed by bonding the materials applied to the bottom surface with each other, and the bonding between the materials is made by the moisture contained in the material, the material forming the bottom portion 311 is appropriate It needs to contain a proportion of moisture.

However, in this case, the ratio of water contained in the molded seed grown into the molded body while rolling the top of the bottom 311 and the molded seed in the process of growing the molded seed into the molded body are formed on the bottom 311. It should be taken into account that the water exchange takes place between the molded body seed and the material forming the bottom 311 while rolling.

Therefore, when the ratio of the water contained in the molded seed grown into the molded body is less than the ratio of the water for maintaining the proper bonding force of the material forming the bottom portion 311, the material forming the bottom portion 311 is It is preferable that the material constituting the bottom 311 contains moisture in a ratio higher than the ratio of moisture necessary to maintain proper bonding force.

In addition, when the ratio of the water contained in the molded seed grown into a molded body is equal to or higher than the ratio of water for maintaining the proper bonding force of the material forming the bottom portion 311, the bottom portion 311 The material preferably contains water in the same proportion as that of the water contained in the molded seed grown into the molded body.

That is, the material constituting the bottom portion 311 preferably contains water in a ratio equal to or higher than the ratio of moisture contained in the molded seed grown in the bottom portion 311 into the molded body.

On the other hand, as shown in Figure 9, when the bottom surface of the disk 310 is a plane, the entire bottom portion 311 is formed to the same thickness.

However, in this case, when the disk 310 is rotated in an inclined state in order to grow the molded body into a molded body, the centrifugal force acts greatly on the edge portion of the bottom portion 311 in contact with the side wall of the disk 310. As a result, the material may drop off at the edge of the bottom 311.

Of course, the falling off of the edge portion of the bottom 311 is a problem occurring at the beginning of the rotation of the disk 310 for forming a molded body, after a certain time has elapsed rather the raw material for molding into a molded body Since the bottom 311 is pressed, and the flattening operation for removing the pressed raw material is repeated, dropping off the edge of the bottom 311 is not a problem.

However, in the early stage of rotation of the disk 310 where the raw material (molded product seed) for forming into a molded body is not sufficiently supplied, when materials are dropped from the edge of the bottom part 311, the repaired part is immediately repaired. This difficulty causes a problem that the progress of subsequent work becomes difficult.

Accordingly, in another embodiment of the present invention, as shown in FIG. 10, the bottom surface of the disk 310 is formed concave, and only the concave portion is filled with a material made of the same component as the seed of the molded body, and the bottom portion 311 To form.

At this time, the upper surface (bottom surface) of the bottom portion 311 is matched with the lower end of the side wall of the disk 310, in this case, the upper surface of the plurality of studs 312 provided on the bottom surface of course the disk 310 ) Is lower than the bottom of the side wall.

As such, the bottom portion 311 is formed by filling only the concave portion of the bottom surface of the disk 310 with the same material as the seed of the molded body, so that the center portion of the bottom portion 311 where the centrifugal force acts small is While formed thick, the thickness of the edge portion where the centrifugal force acts greatly is formed thin.

That is, since a small amount of material is applied to the edge portion of the bottom portion 311 which is greatly affected by the centrifugal force, the centrifugal force actually acting on the edge portion of the bottom portion 311 when the disc 310 is rotated. By reducing the size of not only reduces the probability of the material falling off the edge portion, but even if the drop portion occurs in the edge portion, even if the drop off occurs even the raw material of the molded body can be repaired part have.

As described above, the molded seed is grown into a molded body while rolling on the top surface, that is, the bottom surface of the bottom portion 311. At this time, in the process of the molded seed contact with the materials of the bottom portion 311, the molded seed is adhered to the bottom portion 311 and pressed, or to the molded seed that is excessively pressed on the bottom portion 311 When the acting force is greater than the coupling force acting between the materials of the bottom 311, a part of the materials of the bottom 311 may fall off and the bottom surface of the bottom 311 may become uneven. do.

Therefore, in order to grow the molded seed into a molded product having a uniform size and quality, it is necessary to keep the upper surface (bottom surface) of the bottom portion 311 in a horizontal plane.

That is, in the process of forming a molded seed not yet firmly grown into a molded body while rolling on the bottom surface, a part of the injected molded seed is pressed to the bottom part 311 or pressed to the bottom part 311. A part of the material constituting the bottom 311 may fall off while the attached molded body seeds fall off. In this case, in order to keep the bottom surface in a horizontal plane, the molded body seed (raw material) ) Needs to be removed and planarized work to fill out the missing parts.

To this end, in the present invention, the top surface of the bottom portion 311, two rotary blades provided on the crosspiece 350 across the top surface of the disk 310 at the top of the frame 320, in order to maintain a horizontal plane It includes 360.

As shown in FIG. 11A, the rotary knife portion 360 is provided at a motor 363, a shaft 362 rotated by the motor 363, and a lower end of the shaft 362. The rotary blade 361 is included.

In addition, as shown in Fig. 11B, when the disk 310 is rotated in the clockwise direction, since the molded seed (raw material) is fed to the upper left of the disk 310, the rotary knife 360 Rotation blade 361 of () is preferably provided to be located above the right side of the disk (310).

The rotary blade 361 of the rotary knife part 360 rotates while its lower surface is in close contact with the upper surface (bottom surface) of the bottom portion 311, and the portion of the seed of the molded body is attached and protrudes, Since the portion of the material forming the bottom portion 311 is removed, the top portion (bottom surface) of the bottom portion 311 can be kept horizontal.

In addition, it is preferable that the length of the rotary blade 361 of the rotary knife 360 is provided to cover the edge (radius) from the edge of the bottom portion 311 to the center.

That is, as in the present invention, when using the two rotary knife 360, the length of the rotary blade (361) of the rotary knife 360, the length of about 1/2 of the radius of the bottom 311 You can do In this case, however, the rotary blade 361 of the rotary knife 360 needs a slight gap with the side wall of the disk 310, and the rotary blade 361 and the rotary blade 361 of the adjacent rotary knife 360 are provided. It is preferable to make the length of the rotary blade 361 smaller than the half of the radius of the bottom part 311 by the said gap in that a little clearance is needed also between ().

In addition, in the present invention, it is shown that the two rotary knife portion 360 is fixed to the crosspiece 350, by providing a moving rail (not shown) on the crosspiece 350, one or two rotary knife portion 360 ) May move along the moving rail to flatten the bottom 311.

With this configuration, the disk 310 rotates and the flattening operation is performed by the rotary blade 361 of the rotary knife 360 whenever the bottom 311 passes the position where the rotary knife 360 is provided. This operation is made so that the bottom surface of the bottom portion 311 can maintain a horizontal plane.

Next, the process of growing a molded seed into a molded article by the molded article growing unit 300 of the present invention will be described.

First, as shown in FIG. 11B, when the disk 310 is rotated in the clockwise direction, a molded seed (raw material) is fed to the upper left of the disk 310.

The molded seed injected into the disk 310 is rolled on the bottom surface of the bottom portion 311 of the rotating disk 310, and is grown from the molded seed to the molded body through this rolling process.

At this time, when the moisture ratio of the molded seed is high, the strength of the molded article increases as the size of the molded article is increased by combining with other molded seeds by the moisture contained in the molded seed in the process of hitting or contacting while rolling on the bottom surface of the bottom portion 311. When the moisture content of the molded body seeds is low, the bonding strength is low, but the size of the molded body is not increased, but the strength is improved while rolling on the bottom surface of the bottom part 311.

In addition, as in the present invention, the growth of the molded body by the disk 310 that rotates in an inclined state, the droplet ratio (useable by the behavior of the molded body seed in the bottom portion 311 of the disk 310 can be used) The ratio of space actually used to space).

That is, in order to cultivate the injected molded seed with a good quality of the size and strength desired by the user, it is preferable that the range of the molded seed at the bottom portion 311 of the disk 310 rotating in the inclined state is wider. .

In this case, as shown in FIG. 12, the frictional force between the molded body seed and the bottom 311 acts as an important factor in the behavior of the molded body seed in the bottom part 311.

In FIG. 12, "A" shows the behavior of a molded seed in a disk having a conventional bottom portion made of a metal plate, and "B" shows the behavior of the molded seed in a disk having a bottom portion formed from the same raw material as the molded seed in the present invention. .

That is, as shown in "A" above, in the case of a disk having a bottom plate made of a metal plate, the molded seed located at the lower edge of the inclined disk is rotated while the disk is attached to the edge of the disk by centrifugal force when the disk is rotated. Move upward along.

At this time, since the frictional force (maximum static frictional force) between the molded seed moved upwardly along the disk and the bottom portion made of the metal plate is small, the molded seed is quickly separated from the edge of the disk at a low height, and also the bottom of the disk. Since the frictional force (kinetic frictional force) between the molded body seed and the bottom part made of a metal plate is small and falls at a high speed even when the part is dropped in the part, the behavior range of the molded seed at the bottom part of the disc is narrow and thus rolls less. It is difficult to grow the seed into a rigid molded body.

Furthermore, in the case of a disk in which a conventional bottom part is made of a metal plate, since the molded seed is grown into the molded body by repeated behavior within a narrow behavior range, the number of times of the molded seed seeds has to be increased, and the repeated Due to the behavior, the metal plate forming the bottom is distorted or pieted, which acts as a cause of a defective molded article, and furthermore, the durability of the disk is also a problem.

On the other hand, as in the present invention, in the case of "B" in which the bottom portion 311 is formed of the same raw material as the molded seed, similarly to "A", the molded seed located at the lower edge of the inclined disc may rotate the disc. When the disk moves upward along the rotation while being attached to the edge of the disk by centrifugal force, the frictional force (maximum static frictional force) between the molded seed and the bottom 311 is larger than that of "A", The molded seed is pulled up to the position.

In addition, even when the molded body seed is separated from the edge of the disk 310 at a predetermined height and falls on the bottom 311 of the disk 310, frictional force (kinetic frictional force) between the molded body seed and the bottom 311 is dropped. Because of this size, it falls at a slower speed than in the case of "A" above, and also behaves in a wider range than in the case of "A" due to the centrifugal force acting while the molded seed falls at a slow speed, It is molded into a rigid molded body.

As described above, in the present invention, since the bottom 311 of the disk 310 is made of the same raw material as the seed of the molded body, the frictional force between the molded body seed and the bottom 311 is lower than that of a disk made of a metal plate. Because of this size, the droplet rate in the bottom becomes large.

In addition, since the bottom part 311 of the present invention is formed by applying powder and caking water of the same component as the raw material of the molded seed on the bottom of the disk 310, the molded body seed from the bottom 311 to the molded body. Even if the material is exchanged between the molded body seed and the bottom part 311 in the course of the growth, no change occurs in the components of the molded body. That is, it is possible to produce a molded article of uniform quality.

Further, since the bottom portion 311 is formed by applying powder and caking water of the same component as the raw material of the molded seed on the bottom surface of the disk 310, the bottom portion 311 is used to The bottom can be protected. That is, it is possible to prevent damage to the bottom surface of the disk 310 due to the behavior of the molded seed during the growth of the molded seed.

[Sintering device 400]

The sintering apparatus of this invention is demonstrated in detail with reference to FIGS. 1, 2, and 13-18. However, in the sintering apparatus of the present invention before / after, the left / right direction is based on the moving direction of the bogie. That is, the direction in which the trolley moves to the front or the front, and the opposite side to the rear or the rear, and the left side to the left or left, the right side to the right or the right side in the moving direction of the bogie.

As shown in FIG. 1, the molded body formed by the molding apparatus is stored in the molded body storage unit 410 by a conveying means such as a conveyor belt, and the molded body stored in the molded body storage unit 410 is the sintering apparatus. After the sintering process of the 400 is made of artificial lightweight aggregate.

As shown in FIG. 13, the sintering apparatus 400 includes a bogie 430 moving along the rail 440, a hopper 420 for supplying a molded body to the bogie 430, and the rail 440. ) Is provided on the lower side of the ignition furnace 450 and the lower side of the rail 440 to ignite the lower surface of the molded body charged in the trolley 430, the lower surface is ignited by the ignition furnace 450. In the sintering process of the plurality of wind box 460 for blowing the outside air into the lower portion of the cart 430 and charged along the upper side of the rail 440 is charged into the cart 430 The exhaust duct 470 collects and discharges the generated gas and dust.

The rail 440 may be configured as an endless track to which the truck 430 may be repeatedly cycled, and the endless track may circulate in a horizontal direction or a vertical direction.

In addition, the movement of the trolley 430 on the rail 440 may be continuously moved at a constant speed, or may be intermittently moved by one pitch with the length of the trolley 430 as one pitch. However, in the present invention, unless otherwise stated, it will be described on the premise that the cart 430 moves intermittently by one pitch.

As shown in FIG. 14, the trolley 430 includes a left / right sidewall portion and a bottom portion formed of a refractory material, and the left / right sidewall portion and the bottom portion are opened in front, rear and top surfaces thereof. As a result, a molded article storage space is formed.

In addition, the bottom portion is formed by arranging a plurality of pedestals 431 having an inverted trapezoid shape having an upper side longer than a lower side so as to cross the lower end of the left and right side wall portions, and the ignition between the pedestal 431 and the pedestal 431. A through hole 432 through which the flame of the furnace 450 and the air supplied by the wind box 460 pass may be formed.

In this way, by forming the bottom surface portion with a plurality of inverted trapezoidal shaped pedestals 431, the hole of the through-hole portion 432 facing the molded body inserted into the trolley 430 is made smaller so that the charged molded body can be pulled out. While preventing, the opening of the through hole 432 facing the ignition furnace 450 and the windbox 460 is enlarged, and the flame of the ignition furnace 450 is formed into a molded body inserted into the trolley 430. The air box of the wind box 460 is to be supplied efficiently.

In addition, a lower portion of the left and right sidewall portions of the trolley 430 is provided with a moving body (not shown) for moving the trolley 430 onto the rail 440.

When the empty bogie 430 moved along the rail 440 reaches the lower side of the hopper 420, the molded body supplied from the hopper 420 is charged into the bogie 430, and the bogie is loaded with the molded body. 430 is moved to reach the upper side of the ignition furnace 450 provided below the rail 440, the flame sprayed from the ignition furnace 450 is formed through the hole formed in the bottom surface of the trolley 430 ( Ignition occurs from the lower layer of the molded body charged into the cart 430 through 432.

When the lower layer of the molded body charged in the trolley 430 is ignited, the trolley 430 is moved along the rail 440 in which a plurality of wind boxes 460 are installed downward, wherein the wind box 460 The outside air blown by the air is supplied to the molded body inserted into the trolley 430 through the through-hole 432 formed in the bottom portion of the trolley 430, and the unburned body contained in the molded body charged into the trolley 430. As carbon or organic materials are burned, a transition occurs and sintering is performed from the lower layer to the upper layer of the molded body.

That is, the sintering of the molded article for artificial light aggregate by the sintering apparatus 400 of the present invention, the firing furnace 450 is provided on the lower side of the trolley 430 from the lower layer of the molded body inserted into the trolley 430 In terms of the bottom-up sintering method of sintering to the upper layer, it is essential to use the top-down sintering method in which the sintering furnace is positioned above the trolley and sintered from the upper layer to the lower layer of the raw materials loaded in the trolley. There is a difference.

Such a bottom-up sintering method by the sintering apparatus 400 of the present invention has the following advantages, compared to using a top-down sintering method of sintering from the upper layer to the lower layer of the raw material charged in the balance.

First, in the case of using the conventional top-down sintering method, the lower layer which is sintered from the upper layer of the molded body loaded in the trolley and receives the greatest load by the loaded molded body is sintered last. Therefore, even during the sintering process, the lower-layer molded body is very likely to be deformed or broken under continuous load in the soft state before sintering, which makes it difficult to stack the molded body high. On the other hand, in the case of the sintering apparatus 400 according to the present invention, since the hardening is performed by sintering first from the lower layer that receives the load by the molded body loaded in the cart 430 first, Deformation and breakage of the molded body can be minimized, and it can be laminated higher than the top-down sintering method, which is more advantageous in mass production.

Second, in the case of using the conventional top-down sintering method, the suction of a plurality of wind boxes installed on the lower side of the bogie to ignite from the upper layer of the molded body loaded in the bogie and to force the flow of outside air from the upper side of the bogie to the lower side, The charged molded body is subjected to considerable wind pressure, and this wind pressure causes deformation or breakage of the molded body (particularly, the lower layer molded body) which has not yet been cured by sintering. On the other hand, in the case of the sintering apparatus 400 according to the present invention is ignited from the lower layer of the molded body laminated on the trolley 430, the wind box 460 according to the natural air flow from the lower side to the upper side of the trolley 430 By supplying air by air, deformation or damage of the molded body due to wind pressure does not occur.

Third, in the case of using the conventional top-down sintering method, since the water evaporated in the molded body charged into the upper layer where sintering is performed first moves toward the molded body of the lower layer which is still sintered according to the flow of air, Deformation or breakage of the lower layer molded body due to load or wind pressure of the windbox is accelerated. On the other hand, in the sintering apparatus 400 according to the present invention, although the water evaporates from the lower layer to which the sintering is performed first to the upper layer, since there is almost no load or wind pressure of other formed bodies acting on the molded body of the upper layer, Moisture hardly affects deformation or breakage of the molded body of the upper layer.

Fourth, in the case of using the conventional top-down sintering method, since the wind box is installed on the lower side of the trolley and draws outside air from the upper side of the trolley, dust contained in the exhaust gas generated in the sintering process of the raw materials charged into the trolley. The wind box is sucked into the wind box and pressed to reduce the suction function of the wind box. On the other hand, in the sintering apparatus 400 according to the present invention, since the wind blowing from the wind box 460 toward the cart 430, the exhaust gas generated during the sintering process of the molded body is sucked into the wind box 460 The wind blowing function of the wind box 460 is not impaired.

However, in the bottom-up sintering method by the sintering apparatus 400 of the present invention, since the sintering is performed from the lower layer molded body by the transition of combustion by the flow of natural air from which the heated air flows from the bottom, the advantages as described above. Despite this, problems have been found to be solved. This will be described with reference to FIGS. 15 and 16.

15 is a view for explaining the problem and the solution of the bottom-up sintering method, Figure 16 is a photograph of the result calculated in the process of solving the problem of the bottom-up sintering method.

First, when sintering by inserting a molded body of a similar standard to the cart 430. As shown in (a) of FIG. 15, the side stream of the heated air (arrow) flows along the inner surface of the left and right sidewalls of the trolley 430 while air flows to the center. Since it does not flow, it has been found that the sintering of the molded body charged in the center portion of the trolley 430 is not performed well.

That is, as shown in (a) of FIG. 16, the molded bodies inserted into the center of the trolley 430 are not sintered, and thus remain unburned, and the molded bodies are clung to each other in a crushed state. Problems that cannot be used as aggregate have been identified.

Accordingly, the inventors of the present invention, after various attempts to induce the flow of air evenly throughout the molded body charged in the cart 430, as shown in Figure 15 (b), to both sides of the cart 430 By inserting a fine aggregate molded body to reduce the voids between the moldings, by inserting the coarse aggregate molded body in the center of the trolley 430 to increase the voids between the molded body, the flow of air evenly throughout the molded body charged in the trolley 430 (Arrow) was induced, it was confirmed that a homogeneous artificial lightweight aggregate can be obtained as shown in (b) of FIG.

Therefore, the sintering apparatus 400 of the present invention, as shown in Figure 17, the molded body storage space in the empty bogie 430 entered into the lower side of the hopper 420 to receive the molded body, the lower side of the hopper 420 It further comprises a partition member 421 for partitioning.

The partition member 421 is fixedly provided to be positioned below the hopper 420 by a plurality of poles 421e, and includes a plate-shaped first for partitioning the right space in the trolley 430. The partition member 421a, the plate-shaped second partition member 421b for partitioning the left space in the trolley 430, and the plate-shaped third partition member 421c for temporarily closing the rear surface of the trolley 430. And a rod-shaped fourth partition member 421d provided across the front upper surface of the first partition member 421a and the second partition member 421b, but are provided integrally.

The first partition member 421a and the second partition member 421b each have a rectangular plate shape, and the length of the front / rear direction is the same as the length of the front / rear direction of the side wall portion of the trolley 430. The height in the / downward direction is preferably smaller than the height of the side wall portion of the cart 430.

The first partition member 421a and the second partition member 421b have a lower side of the hopper 420 in order to insert a molded object into a molded object storage space in which the trolley 430 moving along the rail 440 is empty. When reached, the left and right side wall portions of the trolley 430 are positioned at regular intervals so that the molded body storage space in the trolley 430 is divided into three spaces so that the fine aggregate molded body can be charged on the left and right sides. Also, in the center to secure a space for charging the molded article for coarse aggregate.

In addition, the height of the third partition member 421c is the same as the height of the first partition member 421a and the second partition member 421b in the up / down direction, and the left / right width is the same. The third partition member 421c is formed in the shape of a quadrangular plate which is formed to be substantially the same as the open rear width of the trolley 430. In the process of charging the molded body to the molded body storage space in the trolley 430, charging is performed. The molded body serves to prevent the collapsing to the rear of the cart 430.

In addition, the fourth partition member 421d is provided in the shape of a rod that crosses the front upper surface of the first partition member 421a and the second partition member 421b. The fourth partition member 421d includes: When the trolley 430 moves in the state where the molded body is charged in the molded body storage space, the upper surface of the molded bodies inserted into the molded body storage space of the trolley 430 is evenly spread, whereby the molded body is formed in the molded body storage space in the trolley 430. Make sure that it is evenly loaded.

The charging process of the molded body by the partition member 421 will be described with reference to FIG. 18.

First, the cart 430 in which the molded body storage space is empty moves to the lower side of the hopper 420. When the cart 430 moves to the lower side of the hopper 420, the partition member 421 installed under the hopper 420 is inserted into the molded body receiving space in the cart 430. When the 430 is completely positioned below the hopper 420, the molded body storage space in the trolley 430 is divided into three charging spaces by the partition member 421, that is, the molded body charging space and the center of the fine aggregate on both sides. The compartment is made of a space for molding the aggregate for coarse aggregate.

In this way, the molded body is charged by the hopper 420 in a state where the molded object storage space in the trolley 430 is divided into three charging spaces.

At this time, the hopper 420 is not particularly limited to the molding supply method to the three charging spaces of the cart 430, as shown in Figure 18, the supply hole of the hopper 420 in the compartment 430 It is preferable in that it can reduce the time taken for charging a molded object by dividing it into three parts corresponding to the three charged spaces so that the fine aggregate molded body and the coarse aggregate molded body can be supplied simultaneously.

As such, when charging of the molded body by the hopper 420 is completed in the molded body storage space of the trolley 430, the trolley 430 moves forward.

At this time, the partition member 421 which has partitioned the molded object storage space in the cart 430 while the cart 430 moves forward, exits, and then the via of the cart 430 entering the lower side of the hopper 420. It is inserted into the molded article storage space which is again partitioned the molded article storage space of the new cart 430 into three charging spaces.

On the other hand, in the trolley 430 moving forward in a state where the filling of the molded body is completed, the partition member 421 is pulled out, and the aggregate for the aggregate is on both sides of the molded body storage space of the trolley 430, and the aggregate for the aggregate at the center The molded bodies are moved toward the ignition furnace 450 in the state where they are respectively charged.

As described above, the trolley 430 moved toward the ignition furnace 450 is charged into the molded body storage space of the trolley 430 by the ignition furnace 450 provided below the rail 440. Ignition occurs in the lower layer molded body.

The trolley 430 in which the charged lower layer molded body is complexed moves along the rail 440 in which the plurality of windboxes 460 are installed to the lower side, and the transfer of combustion occurs from the lower layer to the upper layer of the charged molded body. Sintering is carried out through the combustion process to the upper layer of the molded body charged in the molded body storage space of 430, the trolley 430 is completed sintering along the rail 440 is provided with a plurality of windbox 460 Cooling of the sintered compact is achieved while continuously moving.

Therefore, the wind box 460 is provided to supply external air to the trolley 430 moving along the rail 440 from the lower side of the rail 440, the molded body charged in the trolley 430 It is preferable that a plurality of the sintering sections in which sintering is performed by temporary combustion and the molded bodies charged in the trolley 430 are continuously provided over the cooling sections until the completion of cooling after the sintering is completed.

In addition, the wind box 460 is provided with a blower (not shown), respectively, to supply external air to the trolley 430 moving on the rail 440, sintering the molded body charged in the trolley 430 It is preferable that the blower provided in the wind box 460 is automatically controlled by a controller (not shown) so that an appropriate amount of external air can be supplied according to the state or cooling state.

In particular, when the movement of the trolley 430 on the rail 440 is configured to be intermittently moved by one pitch with the front / rear length of the trolley 430 as one pitch, It is preferable that blow holes (not shown) of the wind box 460 facing the bottom portion and the bottom portion of the cart 430 have the same size.

That is, whenever the trolley 430 moves by one pitch in the sintering section or the cooling section, the bottom surface of the trolley 430 may coincide with the air vent of the wind box 460 to efficiently sinter and cool. .

In addition, dust or gas is generated in the sintering process in which the molded body charged into the molded body storage space of the cart 430 is ignited from the lower layer, and the sintering process is sintered to the upper layer of the compacted body in which the lower layer is complexed and the cooling process in which the sintered compact is cooled. This dust or gas is moved upward along the flow of heated air.

Therefore, in the present invention, the discharge duct 470 for collecting and dusting dust or gas generated in the molded body charged in the trolley 430 moving along the rail 440 is at least a sintering section and a cooling section (the In the ignition furnace 450 and the section in which the plurality of windboxes 460 are installed), they are spaced apart from the upper side of the rail 440.

Dust or smoke collected by the discharge duct 470 moves to the dust collector 490 through the discharge passage 480 connected to the outside. At this time, it is preferable to provide a suction device 491 on the dust collector 490 side to facilitate the discharge of dust and smoke.

In addition, if the molded article is loaded into the cart 430 is made of artificial lightweight aggregate through the sintering section and the cooling section, the manufactured artificial lightweight aggregate is discharged to the discharge portion 510, discharge the manufactured artificial lightweight aggregate Thus, the cart 430 having an empty charging space is returned to the position where the first hopper 420 is provided along the circulation rail.

[Artificial light aggregate discharge device]

The artificial lightweight aggregate discharge device, the artificial lightweight aggregate is discharged from the cart 430 discharge unit 510 and the artificial lightweight aggregate supplied through the discharge unit 510 is separated into a unit artificial lightweight aggregate Separation unit 520, the transfer unit 530 for transferring the artificial lightweight aggregate separated in the unit artificial lightweight aggregate in the separation unit 520 and the artificial lightweight aggregate transferred through the transfer unit 530 by size The classification unit 540 includes a classification.

The artificial lightweight aggregate discharged through the discharge unit 510 is charged by the water contained in the molded body in a portion where neighboring molded bodies contact each other in the process of charging the trolley 430 into the molded body before being sintered into the artificial lightweight aggregate. The case of combining occurs.

As such, since the sintering and cooling are performed in a state where the adjacent parts of the molded body are in contact with each other, adjacent artificial light weight aggregates may be attached to each other. It is separated into unit artificial lightweight aggregate.

The artificial light weight aggregate separated into unit artificial light weight aggregates in the separating part 520 is moved to a place for storing it by the transfer part 530, in particular, due to the characteristics of the sintering apparatus according to the present invention, At least two or more kinds of artificial lightweight aggregates are produced simultaneously.

Therefore, the classification unit 540 of the present invention classifies the manufactured artificial lightweight aggregates by size, and the artificial lightweight aggregates classified by size are transferred and stored by

separate transfer lines

541, 542 and 543, respectively.

As mentioned above, although the invention made by the present inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

Claims

Bogie moving along the rail,

Hopper for supplying a molded body to the bogie,

An ignition furnace provided at a lower side of the rail to ignite the molded body charged in the trolley,

A plurality of windboxes provided at a lower side of the rail to supply external air to a molded body complexed by the ignition furnace,

The ignition furnace complexes the lower surface of the molded body charged into the trolley,

The plurality of windboxes blow external air into the lower portion of the bogie in which a molded body having a lower surface is complexed,

A partition member is provided at a lower side of the hopper for partitioning a molded object storage space in an empty bogie coming into the lower side of the hopper.

Sintering apparatus for artificial light aggregate, characterized in that the molded body for fine aggregate is charged on both sides of the space in the trolley by the partition member, and the molded body for coarse aggregate is inserted in the middle.
In claim 1,

Further comprising a discharge duct for collecting and dusting dust or gas generated in the molded body charged in the bogie moving along the rail,

The discharge duct is at least the ignition furnace and the sintering apparatus for artificial light aggregate, characterized in that spaced apart installed to the upper side of the rail in the section in which the plurality of wind boxes are installed.
In claim 1,

The trolley is made up of the left and right side wall portion and the bottom portion with the front, rear and top surfaces open,

The partition member is a plate-shaped first partition member for partitioning the right space in the bogie, a plate-shaped second partition member for partitioning the left space in the bogie, and a plate-shaped third partition for temporarily closing the back of the bogie. And a rod-shaped fourth partition member provided across the upper surface of the front side of the member and the first partition member and the second partition member.
An artificial lightweight aggregate manufacturing system comprising a molding apparatus and a sintering apparatus,

The sintering apparatus is a sintering apparatus for artificial light aggregate according to any one of claims 1, 2 or 3,

The molding apparatus is a molding apparatus for artificial light aggregate including a seed molding unit for molding into a seed of a molded body using a finely ground mixed powder, a molded body growth unit for growing a seed formed from the seed molding unit into a molded body. Artificial lightweight aggregate manufacturing system characterized in that.
In claim 4,

The seed molding portion includes a cylindrical body portion having a circular cross section extending in the horizontal direction, a rotating shaft portion provided across the center of the inside of the body portion and rotatable in a predetermined direction,

Inside the main body is divided into a stirring zone and a molding zone from one side to the other side,

A powder raw material inlet and a caking water inlet nozzle are formed on the upper surface of the main body of the portion where the stirring region is formed.

A plurality of blades for mixing and kneading the powder raw material and the caking water are provided at regular intervals along the rotating shaft in a portion corresponding to the stirring region of the rotating shaft,

In order to form the molded body seed by repeating the finely divided dough of the powder raw material and caking water, which is moved in the stirring zone, and contacting and bonding the particles in the broken state to a portion corresponding to the molding zone of the rotary shaft portion. And a plurality of pin portions spaced apart at regular intervals along the rotation shaft portion.
In claim 5,

The molded body growth unit includes a circular side wall and a bottom surface, and a disk for growing the molded body molded in the seed molding unit into a molded body by rotation, and a rotating shaft for rotating the disk in a predetermined direction.

The bottom surface of the disk, the artificial lightweight aggregate production system, characterized in that the bottom portion is formed by applying powder material and caking water of the same component as the molded seed.