WO2017038049A1 - クーラ装置のロールクラッシャ - Google Patents

クーラ装置のロールクラッシャ Download PDF

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Publication number
WO2017038049A1
WO2017038049A1 PCT/JP2016/003831 JP2016003831W WO2017038049A1 WO 2017038049 A1 WO2017038049 A1 WO 2017038049A1 JP 2016003831 W JP2016003831 W JP 2016003831W WO 2017038049 A1 WO2017038049 A1 WO 2017038049A1
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WO
WIPO (PCT)
Prior art keywords
crushing
teeth
tooth
roll
ring
Prior art date
Application number
PCT/JP2016/003831
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English (en)
French (fr)
Japanese (ja)
Inventor
耕一 出井
茂樹 ▲凡▼
恭司 山形
弘明 大澤
宏 板東
昭宏 吉永
喜久 山口
Original Assignee
川崎重工業株式会社
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=58188805&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2017038049(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to EP16841089.2A priority Critical patent/EP3345680B2/en
Priority to JP2017537530A priority patent/JP6886403B2/ja
Priority to DK16841089.2T priority patent/DK3345680T4/da
Priority to MYPI2018700806A priority patent/MY192199A/en
Publication of WO2017038049A1 publication Critical patent/WO2017038049A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers

Definitions

  • the present invention relates to a roll crusher of a cooler apparatus that cools a high-temperature granular conveyance object, for example, a granular cement clinker while conveying the granular conveyance object.
  • the cement plant is equipped with a cooler device that transports the high-temperature cement clinker generated through preheating, calcination, and firing in the transport direction while cooling, and for example, there is a cooling device as in Patent Document 1.
  • This cooling device conveys the clinker while cooling it in the cooling section, and discharges the clinker from the discharge end of the cooling section.
  • the cooling device includes four rolls extending in the direction perpendicular to the transport direction in the vicinity of the discharge end. Of the four rolls, the three rolls positioned on the discharge end side rotate in the normal direction (that is, rotate so as to be fed in the transport direction). Moreover, the 4th reverse rotation roll reversely rotates, and a block clinker is pinched
  • an object of the present invention is to provide a roll crusher for a cooler apparatus that can level out changes in roll load with time.
  • the roll crusher of the cooler device of the present invention is a roll crusher for crushing the granular conveyed product in a cooler device that cools while conveying the granular conveyed product, and is arranged in parallel in the conveying direction with a gap between each other, And a plurality of rolls each of which is rotated by a rotating unit around an axis line orthogonal to the transport direction and parallel to each other to crush the granular transported material, and at least one of the plurality of rolls has a load reduction
  • the load reducing roll has a plurality of crushing rings, and each of the plurality of crushing rings has a plurality of crushing teeth arranged at equal intervals in the circumferential direction on the outer peripheral surface, Among the plurality of crushing rings, at least one of the plurality of crushing teeth is shifted in the circumferential direction with respect to the plurality of crushing teeth of the adjacent crushing rings. It is what is.
  • a plurality of crushing teeth are arranged shifted in the circumferential direction with respect to at least one crushing ring. Therefore, when the roll is rotated, the timing at which the load becomes large can be shifted with respect to the load at the time of crushing which acts on the crushing rings arranged in a shifted manner and the other crushing rings. Thereby, it is possible to level the change with time of the load acting on the load reducing roll, and as a result, it is possible to level the change with time of the load of the rotating unit.
  • the plurality of crushing teeth are arranged on an outer peripheral surface of the crushing ring at a predetermined pitch, and the plurality of crushing teeth of the crushing ring adjacent in the axial direction in which the axis extends.
  • the pitches may be arranged so as to deviate in the circumferential direction by 1 / n times the pitch (n: an integer of 2 or more).
  • the crushed teeth are aligned in the axial direction to form a dentition, and the dentition is twisted in one circumferential direction.
  • the granular conveyance thing of the lump which cannot be crushed but remained on the roll can be sent to an axial direction one side.
  • the lump granular conveyance thing which is sent by lump granular conveyance thing collides with the granular conveyance substance of another lump, and can grind
  • the granular conveyed product by feeding the granular conveyed product, the granular conveyed product remaining on the roll can be guided to a gap where the granular conveyed product can be well bitten. Thereby, even a granular conveyed product with a large particle size can be bitten well.
  • the load reduction roll has a shaft that extends in the axial direction and is rotated about the axis by the rotating unit, and the shaft extends in the axial direction and has an outer peripheral surface.
  • the plurality of crushing rings have one of the engagement piece and the engaged groove on the inner peripheral surface thereof, By engaging the engagement piece with the engaged groove, the shaft is sheathed so as not to be relatively displaced in the circumferential direction, and the plurality of crushing rings include a first crushing ring and a second crushing ring,
  • the first crushing ring has a first reference tooth that is one of the plurality of crushing teeth
  • the second crushing ring has a second reference tooth that is one of the plurality of crushing teeth.
  • the first reference tooth is located in the first crushing ring.
  • the second reference teeth are 360 / (n ⁇ N) in the circumferential direction with respect to the first reference teeth. (N: the number of teeth of the second crushing ring) may be shifted by a degree.
  • the crushing ring in which the crushing teeth are arranged with a shift of 360 ⁇ (n ⁇ 1) / (n ⁇ N) degrees with respect to the crushing teeth of the first crushing ring ( That is, it can be used as a crushing ring in which crushing teeth are displaced in one circumferential direction by (n ⁇ 1) / n times the pitch. Therefore, the type of mold for manufacturing the crushing ring can be made smaller than the type of crushing ring used, and the manufacturing cost can be reduced.
  • the plurality of crushing teeth may include a high tooth that is the crushing tooth having a first height and a low tooth that is the crushing tooth having a second height lower than the first height.
  • a plurality of the high teeth are arranged in the circumferential direction, and a plurality of the low teeth are arranged in the circumferential direction.
  • the high tooth formation site and the low tooth formation site may be arranged in a staggered manner.
  • the low teeth and the high teeth are alternately arranged in the axial direction between the rolls during crushing, it is possible to level the change with time of the load acting on the load reducing roll, and as a result, the rotating unit.
  • the change with time of the load can be leveled.
  • the load reducing roll has a shaft that extends in an axial direction in which the axis extends and is rotated around the axis by the rotating unit, and the plurality of crushing teeth are predetermined. Are arranged on the outer peripheral surface of the crushing ring at equal intervals with a predetermined pitch, and shifted to one side in the circumferential direction by a half of the pitch with respect to the crushing teeth of the crushing ring adjacent in the axial direction.
  • the shaft has one of an engagement piece and an engagement groove extending in the axial direction and engaging with each other on an outer peripheral surface
  • the plurality of crushing rings include the engagement piece And the other of the engaged grooves on the inner peripheral surface, and by engaging the engaging piece with the engaged groove, the outer periphery of the shaft is mounted on the shaft so as not to be relatively displaceable in the circumferential direction. There is little on the outer peripheral surface of the ring.
  • the plurality of crushing rings include a first crushing ring and a second crushing ring.
  • the first crushing ring is one of the plurality of crushing teeth, and connects the center of the first crushing ring and the other one of the engaging piece and the engaged groove.
  • a first reference tooth positioned on a line, and the high tooth formation portion and the low tooth formation portion are alternately arranged in the circumferential direction on the outer peripheral surface of the first crushing ring with reference to the first reference tooth.
  • the second crushing ring is one of the plurality of crushing teeth and is arranged with a shift of 1 ⁇ 2 times the pitch in the circumferential direction with respect to the first reference tooth.
  • a second reference tooth The high-tooth formation site and the low-tooth formation site are alternately arranged in the circumferential direction with respect to a quasi-tooth, and the first crushing ring and the second crushing ring are rotationally symmetric about each axis. It may be formed to have properties.
  • the first crushing ring and the second crushing ring are externally mounted on the shaft in a normal posture, and the first crushing ring and the second crushing ring are externally mounted in the inverted posture at the adjacent positions, and further By repeating the above, it is possible to manufacture a load reducing roll in which the crushing teeth are displaced by 1/2 times the pitch and the high tooth region and the low tooth region are arranged in a staggered manner.
  • four types of crushing rings are used in manufacturing, the number of types of molds for manufacturing the crushing rings can be suppressed to two, and the manufacturing cost can be reduced.
  • the plurality of rolls have at least two or more adjacent load reduction rolls, and the adjacent load reduction rolls have different crushing amounts in the circumferential direction of the plurality of crushing teeth.
  • Each may have a ring.
  • the change with time of the load acting on the load reduction roll can be further leveled, and as a result, the change with time of the load of the rotating unit can be further leveled.
  • FIG. 3 It is the schematic which shows the structure of a cement plant provided with the cooler apparatus which concerns on this invention. It is a perspective view which shows the outline of a structure of the cooler apparatus of FIG. It is a perspective view which shows the roll crusher of the cooler apparatus of FIG. It is a front view which shows the 1st crushing ring of the 1st roll of FIG. It is a front view which shows a part of 1st crushing ring of the 1st roll of FIG. It is a front view which shows the 2nd crushing ring of the 1st roll of FIG. It is a front view which shows a part of 2nd crushing ring of the 1st roll of FIG. It is an expansion perspective view which expands and shows the 1st roll of FIG. 3 partially.
  • cooler device 1 according to an embodiment of the present invention will be described with reference to the drawings.
  • the concept of the direction used in the following description is used for convenience in description, and does not limit the direction of the configuration of the invention in that direction.
  • the cooler apparatus 1 demonstrated below is only one Embodiment of this invention. Therefore, the present invention is not limited to the embodiments, and additions, deletions, and changes can be made without departing from the spirit of the invention.
  • Cement is produced through a raw material grinding process for grinding cement raw materials containing limestone, clay, silica, iron, etc., a firing process for firing the ground cement raw material, and a finishing process as the final process.
  • Three processes are performed in a cement plant.
  • the firing step which is one of these three steps, the ground cement raw material is fired and cooled to produce a granular cement clinker.
  • the structure shown in FIG. 1 shows the calcination equipment 3 of a cement plant, and is the part which is performing the calcination process in cement manufacture.
  • the firing facility 3 preheats, calcines, and fires the cement raw material pulverized in the raw material pulverization step, and cools the granular cement clinker that has been baked to a high temperature.
  • the baking equipment 3 is provided with the preheater 4, and the preheater 4 is comprised by the several cyclone 5.
  • FIG. The cyclones 5 are arranged in a stepwise manner in the vertical direction. The exhaust in the cyclones 5 is blown up to the upper cyclone 5 (see the broken arrow in FIG. 1), and the input cement raw material is separated by a swirling flow. To the cyclone 5 (see the solid arrow in FIG. 1). The cyclone 5 located on the uppermost stage of the lowest stage is designed to feed cement raw material into the calcining furnace 6.
  • the calcining furnace 6 has a burner, and a reaction (that is, a calcining reaction) is performed to separate carbon dioxide gas in the cement raw material input by heat from the burner and heat of exhaust gas described later.
  • a reaction that is, a calcining reaction
  • the cement raw material whose calcining reaction is promoted in the calcining furnace 6 is guided to the lowermost cyclone 5 as will be described later, and the cement raw material in the cyclone 5 is further supplied to the rotary kiln 7. Yes.
  • This rotary kiln 7 is formed in a horizontally long cylindrical shape of several tens of meters or more.
  • the rotary kiln 7 is disposed so as to be inclined slightly downward from the inlet on the cyclone 5 side toward the outlet on the tip side. Therefore, by rotating the rotary kiln 7 around the axis, the cement raw material on the inlet side is conveyed to the outlet side.
  • a combustion device 8 is provided at the outlet of the rotary kiln 7. The combustion device 8 forms a high-temperature flame and fires the cement raw material.
  • the combustion device 8 injects high-temperature combustion gas toward the inlet side, and the combustion gas injected from the combustion device 8 flows in the rotary kiln 7 toward the inlet while firing the cement raw material.
  • Combustion gas is jetted from the lower end of the calcining furnace 6 as high-temperature exhaust gas and blows upward in the calcining furnace 6 (see the broken arrow in FIG. 1), and the cement raw material charged into the calcining furnace 6 is injected. Is blown upward.
  • the cement raw material is heated to about 900 ° C. by this exhaust and burner, that is, calcined.
  • the blown-up cement raw material flows into the lowermost cyclone 5 together with the exhaust gas, and the exhaust gas flowing in here and the cement raw material are separated.
  • the separated cement raw material is supplied to the rotary kiln 7, and the exhaust is blown up to the cyclone 5 on the upper stage.
  • the exhaust gas blown up is subjected to heat exchange with the cement raw material supplied thereto in each cyclone 5 to heat the cement raw material, and is separated from the cement raw material again.
  • the separated exhaust gas further rises to the cyclone 5 above it and repeats heat exchange. And it is discharged
  • cement raw material is charged from the vicinity of the uppermost cyclone 5, sufficiently preheated while exchanging heat with the exhaust, and lowered to the cyclone 5 higher than the lowermost stage, and the calcining furnace 6 is input.
  • the cement raw material is calcined with a burner and a high-temperature gas, and then the cement raw material is guided to the lowermost cyclone 5 where it is separated from the exhaust gas and supplied to the rotary kiln 7.
  • the supplied cement raw material is conveyed to the exit side while being fired in the rotary kiln 7.
  • cement clinker is shape
  • a cooler device 1 is provided at the outlet of the rotary kiln 7, and the cement clinker formed from the outlet of the rotary kiln 7 is discharged to the cooler device 1.
  • the cooler device 1 is configured to cool a cement clinker (high-temperature granular conveyed product) discharged from the rotary kiln 7 while conveying it in a predetermined conveying direction.
  • Great 11 is arranged.
  • the fixed inclined grate 11 is inclined downward from the outlet side of the rotary kiln 7 in the conveying direction, and the granular cement clinker discharged from the outlet of the rotary kiln 7 rolls on the fixed inclined grate 11 in the conveying direction. It has come to fall.
  • a plurality of cooling grid rows 13 are provided at the front end of the fixed inclined grate 11 in the conveyance direction, and cement clinker is deposited on the plurality of cooling grid rows 13 to form a clinker layer 14.
  • the cooling grid row 13 is a structure that extends in the transport direction, and is arranged in parallel in a lateral direction (hereinafter, also referred to as “orthogonal direction”) orthogonal to the transport direction so as to be adjacent to each other.
  • a clinker layer 14 (see a two-dot chain line in FIG. 2) is placed thereon so as to cover all of the rows 13.
  • the thus configured cooling grid row 13 has a cart (not shown) and is moved in one direction and the other in the transport direction.
  • the cooling grid row 13 is moved and the cooling grid row 13 is stopped.
  • a granular cement clinker is conveyed.
  • Specific transport methods include, for example, a method in which all the cooling grid rows 13 aligned in the orthogonal direction are moved forward and then the non-adjacent cooling grid rows 13 are retracted in a plurality of times, or a cross bar extending in the orthogonal direction.
  • the roll crusher 15 is a device for further finely crushing the cement clinker falling from the tip of the cooling grid row 13.
  • the roll crusher 15 includes four load reduction rolls (hereinafter simply referred to as “rolls”) 15a to 15d.
  • the four rolls 15a to 15d are cylindrical rod-like bodies extending in the orthogonal direction, and are supported by a bearing mechanism (not shown) so as to rotate around the respective rotation axes L1 to L4.
  • the four rolls 15a to 15d are arranged such that the rotation axes L1 to L4 are parallel to each other and arranged in the transport direction at a predetermined interval, and each of the four rolls 15a to 15d has a separate rotation.
  • a unit 17 is provided.
  • the rotation unit 17 is a so-called electric motor, and is configured to rotate the rolls 15a to 15d in a normal direction and a reverse direction in accordance with a command input thereto. Further, a control device 18 is connected to the rotation unit 17, and the control device 18 controls the movement of the rotation unit 17 to rotate the four rolls 15 a to 15 d to crush the massive cement clinker. It is like that. Hereinafter, the four rolls 15a to 15d will be described in detail.
  • the four rolls 15a to 15d are composed of two types of rolls. Specifically, the first and third from the downstream side in the transport direction are configured by the first type roll, and the second and fourth are configured by the second type roll.
  • the structure of the 1st roll 15a which is a 1st roll as a 1st type roll is demonstrated, referring FIG. 4 thru
  • the configurations of the third roll 15c, which is the third roll, and the fourth roll 15d, which is the fourth roll, are the same as the configurations of the first roll 15a and the second roll 15b. A description thereof will be omitted.
  • the first roll 15 a has a first shaft 21 and a plurality of crushing rings 22 and 23.
  • the first shaft 21 is a substantially columnar member extending in the orthogonal direction, and the vicinity of both ends thereof is pivotally supported around a rotation axis L1 by a bearing mechanism (not shown).
  • One end of the first shaft 21 is connected to the rotation unit 17 and is driven to rotate about the rotation axis L1 by the rotation unit 17.
  • Two keys 21 a are formed on the outer peripheral surface of the first shaft 21.
  • the two keys 21a which are engaging pieces, protrude radially outward and extend from one end of the first shaft 21 to the other end, and are arranged 180 degrees apart in the circumferential direction.
  • a plurality of two types of crushing rings 22 and 23 are alternately mounted on the outer peripheral surface of the first shaft 21 having such a shape. Below, the structure of the 1st crushing ring 22 and the 2nd crushing ring 23 which are two types of crushing rings 22 and 23 is demonstrated.
  • the first crushing ring 22 shown in FIG. 4 is a substantially cylindrical member extending in the orthogonal direction, and has two key grooves 22a on the inner peripheral surface thereof.
  • the key groove 22a which is an engaged groove, has the same shape as the key 21a of the first shaft 21, and extends from one end of the first crushing ring 22 to the other end.
  • the key groove 22a is arranged 180 degrees apart in the circumferential direction, and the key 21a is fitted into the key groove 22a when the first crushing ring 22 is externally mounted on the first shaft 21.
  • the first crushing ring 22 is packaged so as not to rotate relative to the first shaft 21.
  • a plurality of crushing teeth 24 are formed on the outer peripheral surface of the first crushing ring 22.
  • 18 crushing teeth 24 are formed on the outer peripheral surface of the first crushing ring 22, and the 18 crushing teeth 24 are arranged at an equal pitch p1. Each crushing tooth 24 protrudes radially outward and extends from one end to the other end of the first crushing ring 22 in the orthogonal direction. Further, the plurality of crushing teeth 24 include crushing teeth 24 having different tooth depths. In this embodiment, three of the six high teeth 24a, the four middle teeth 24b, and the eight low teeth 24c. Different types of teeth are included.
  • the high tooth 24a is the tooth having the largest tooth depth among the three types of teeth. Of the six high teeth 24a, one high tooth 24a is located on the virtual central plane PL11 including the central axis (that is, the rotation axis L1) of the first crushing ring 22 and the center of one key groove 22a. .
  • This high tooth 24a is a first reference tooth, and on the outer peripheral surface of the first crushing ring 22, two high teeth 24a are arranged on one side in the circumferential direction with reference to the first reference tooth 24d in FIG. Next, the middle teeth 24b are arranged.
  • the middle teeth 24b are teeth lower than the high teeth 24a and higher than the low teeth 24c, that is, have a tooth depth intermediate between those of the high teeth 24a and the low teeth 24c.
  • the middle teeth 24b are arranged again, and then the high teeth 24a are arranged.
  • the high teeth 24a are located on the virtual center plane PL11. Following the high teeth 24a, two high teeth 24a are arranged side by side at an equal pitch p1 in one circumferential direction. Subsequently, the middle teeth 24b, the four low teeth 24c, and the middle teeth 24b are arranged at an equal pitch p1 in this order.
  • first crushing ring 22 configured in this way, three high teeth 24a are arranged side by side on the outer peripheral surface, and the three high teeth 24a arranged side by side are first high tooth forming portions 25 (for example, described later).
  • the shaded portion of the first roll 15a in FIG. 8 is configured.
  • four low teeth 24c are arranged side by side in one and the other in the circumferential direction, and the four low teeth 24c arranged side by side form the first low-tooth formation.
  • Each part 26 is constituted.
  • part 26 are alternately arrange
  • the first crushing ring 22 having such a shape can be externally mounted on the first shaft 21 in a normal posture in which the high teeth 24a adjacent to the first reference teeth 24d are located on one side in the circumferential direction of the first reference teeth 24d. it can.
  • the first shaft 21 can be externally mounted in an inverted posture in which the one side and the other side are inverted. In the reverse posture, as shown in FIG. 5, the circumferential position of the first reference tooth 24d does not change, but the two high teeth 24a are arranged so as to be arranged on the other circumferential side of the first reference tooth 24d.
  • the first crushing ring 22 is reversed left and right with respect to the virtual central plane PL11, so that the first high tooth forming portion 25 and the first low tooth forming portion 26 are defined on the outer peripheral surface with reference to the first reference tooth 24d. They can be arranged alternately in the other circumferential direction in that order.
  • the second crushing ring 23 shown in FIG. 6 is a substantially cylindrical member extending in the orthogonal direction and has substantially the same configuration as the first crushing ring 22. That is, the second crushing ring 23 has two key grooves 23a that are engaged grooves on its inner peripheral surface, and a plurality of crushing teeth 27 on its outer peripheral surface. Like the plurality of crushing teeth 24 of the first crushing ring 22, the plurality of crushing teeth 27 include crushing teeth 27 with different tooth depths. In the present embodiment, the six high teeth 27a, Three different types of teeth are included, a tooth 27b and eight low teeth 27c.
  • Each of the plurality of crushing teeth 27 is also arranged in the same arrangement as the plurality of crushing teeth 24 of the first crushing ring 22, and has two heights in the circumferential direction from the second reference tooth 27 e corresponding to the first reference tooth 24 d.
  • Teeth 27a, medium teeth 27b, four low teeth 27c, medium teeth 27b, three high teeth 27a, medium teeth 27b, four low teeth 27c, and medium teeth 27b are arranged on the outer peripheral surface of the second crushing ring 23 in this order. It is out.
  • the second crushing ring 23 has a second reference on the virtual central plane PL12 including the central axis of the second crushing ring 23 and the center of the key groove 23a.
  • a tooth bottom 27d formed between the teeth 27e and the middle teeth 27b is located, and the second reference teeth 27e are arranged with a deviation of 1/2 the pitch p1 with respect to the virtual center plane. That is, the entire plurality of crushing teeth 27 are arranged with a shift of 1 ⁇ 2 times the pitch p1 around the rotation axis L1 with respect to the plurality of crushing teeth 24 of the first crushing ring 22.
  • the 2nd high tooth formation part 28 is constituted by the 3 high teeth 27a arranged side by side like the 1st crushing ring 22, and 4 pieces arranged side by side
  • a second low tooth formation site 29 is configured by the low teeth 27c. That is, the second high-tooth forming portion 28 and the second low-tooth forming portion 29 are alternately arranged on the outer peripheral surface of the second crushing ring 23 on one side in the circumferential direction with respect to the second reference tooth 27e. ing.
  • the second crushing ring 23 having such a shape is externally attached to the first shaft 21 in a normal posture in which the high teeth 27a adjacent to the second reference teeth 27e are located on one side in the circumferential direction with respect to the second reference teeth 27e. be able to.
  • the second crushing ring 23 has rotational symmetry about the central axis and the key groove 23a is arranged at a position shifted by 180 degrees as in the first crushing ring 22, the virtual central plane PL12
  • the first crushing ring 23 can be externally mounted on the first shaft 21 in an inverted posture in which one side and the other side are inverted.
  • the second reference teeth 27e are arranged at a position inverted with respect to the virtual central plane PL12, and the two high teeth 27a are arranged on the other circumferential side of the second reference teeth 27e.
  • the second high tooth formation site 28 and the second low tooth formation site 29 are in that order on the outer peripheral surface with the second reference tooth 27e as a reference. Can be arranged alternately in the other circumferential direction.
  • Each of the two types of crushing rings 22 and 23 configured in this manner is externally mounted on the first shaft 21 while changing the normal posture and the reverse posture. That is, the first shaft 21 is externally provided with a plurality of crushing rings 22 and 23 as shown in FIG.
  • the first crushing ring 22 is externally mounted in a normal posture on the most other end side of the first shaft 21, and the second crushing ring 23 is externally mounted in a normal posture so as to be adjacent thereto.
  • the second crushing ring 23T in the normal posture is arranged such that the second reference teeth 27e are shifted by a half pitch p1 / 2 with respect to the first reference teeth 24d of the first crushing ring 22T in the normal posture.
  • the second crushing ring 23 ⁇ / b> T is externally mounted on the first shaft 21 in a state where the whole of the plurality of crushing teeth 27 is shifted by a half pitch p1 / 2 with respect to the whole of the plurality of crushing teeth 24 of the first crushing ring 22.
  • the first high tooth forming portion 25 and the second high tooth forming portion 28 are basically arranged on one side in the circumferential direction from the virtual central planes PL11 and PL12. Yes.
  • first crushing ring 22 is mounted on the first shaft 21 adjacent to the two crushing rings 22T and 23T in an inverted posture
  • second crushing ring 23 is mounted on the first shaft 21 in an inverted posture so as to be adjacent thereto.
  • first high tooth forming portion 25 and the second high tooth forming portion 28 are basically arranged on the other side in the circumferential direction from the virtual central planes PL11 and PL12. Has been.
  • the tooth formation part 28 is located on the opposite side to the virtual central planes PL11 and PL12, respectively.
  • the first shaft 21 is covered with two crushing rings 22T and 23T in the normal posture adjacent to the two crushing rings 22R and 23R in the reverse posture in that order, and next to the two crushing rings 22T and 23T in the reverse posture.
  • the crushing rings 22R and 23R are packaged in that order.
  • the 1st roll 15a is comprised by armoring the some crushing rings 22T, 22R, 23T, and 23R on the 1st shaft 21. As shown in FIG.
  • a high tooth forming portion 30H is formed by the adjacent first high tooth forming portion 25 and the second high tooth forming portion 28, and the adjacent first low tooth
  • a low tooth formation site 30 ⁇ / b> L is formed by the formation site 26 and the second low tooth formation site 29.
  • the high tooth formation site 30H and the low tooth formation site 30L are alternately arranged on one side and the other side of the virtual central planes PL11 and PL12 in the orthogonal direction. Thereby, the high tooth formation part 30H and the low tooth formation part 30L are arrange
  • the second roll 15b is disposed on the first roll 15a so as to be adjacent to the transport direction with a predetermined interval.
  • the second roll 15 b has a second shaft 31 and a plurality of crushing rings 32 and 33.
  • the second shaft 31 has the same shape as the first shaft 21. That is, the second shaft 31 is a cylindrical member extending in the orthogonal direction, and the vicinity of both ends thereof is pivotally supported around a rotation axis L2 by a bearing mechanism (not shown). One end of the second shaft 31 is connected to the rotation unit 17 and is driven to rotate about the rotation axis L2 by the rotation unit 17.
  • two keys 31 a (engagement pieces) arranged 180 degrees apart in the circumferential direction are formed on the outer peripheral surface of the second shaft 31.
  • a plurality of two types of crushing rings 32 and 33 are externally mounted on the outer peripheral surface of the second shaft 31 having such a shape.
  • the first crushing ring 32 shown in FIG. 9 is a substantially cylindrical member extending in the orthogonal direction, and has two key grooves 32a on the inner peripheral surface thereof.
  • the key groove 32a which is the engaged groove, has the same shape as the key 31a of the second shaft 31, and extends from one end of the first crushing ring 32 to the other end.
  • the key grooves 32 a are arranged 180 degrees apart in the circumferential direction, and the keys 31 a are fitted into the key grooves 32 a when the first crushing ring 32 is mounted on the second shaft 31. Thereby, the first crushing ring 32 is packaged so as not to rotate relative to the second shaft 31.
  • a plurality of crushing teeth 34 are formed on the outer peripheral surface of the first crushing ring 32.
  • 18 crushing teeth 34 are formed on the outer peripheral surface of the first crushing ring 32, and the 18 crushing teeth 34 are arranged at an equal pitch p2.
  • Each crushing tooth 34 protrudes radially outward and extends from one end of the first crushing ring 32 to the other end.
  • each crushing tooth 34 is formed on the outer peripheral surface of the first crushing ring 32 so that the teeth are the same.
  • the first reference tooth 34a which is one of the plurality of crushing teeth 34, connects the center axis of the first crushing ring 32 (that is, the rotation axis L2) and the center of one key groove 32a.
  • the other crushing teeth 34 are arranged on the outer peripheral surface of the first crushing ring 32 side by side at an equal pitch p2 on the basis of the first reference teeth 34a.
  • the 1st crushing ring 32 comprised in this way is formed so that it may have rotational symmetry centering on the central axis.
  • the first crushing ring 32 is externally mounted on the second shaft 31 such that the first reference teeth 34 a are positioned on the radially outward extension line of one key 31 a of the second shaft 31.
  • the second crushing ring 33 shown in FIG. 10 is a substantially cylindrical member extending in the orthogonal direction and has substantially the same configuration as the first crushing ring 32. That is, the second crushing ring 33 has two key grooves 33a (engaged grooves) on the inner peripheral surface thereof and a plurality of crushing teeth 35 on the outer peripheral surface thereof.
  • the plurality of crushing teeth 35 are formed on the outer peripheral surface of the second crushing ring 33 so as to have the same tooth depth as the first crushing ring 32.
  • 18 crushing teeth 35 are formed on the outer peripheral surface of the second crushing ring 33, and the 18 crushing teeth 35 are arranged at an equal pitch p2.
  • the second crushing ring 33 has a second reference tooth 35a corresponding to the first reference tooth 34a, which is one of the plurality of crushing teeth 35, and the second reference tooth 35a is a second tooth.
  • the crushing ring 33 is arranged so as to be shifted by 1/3 times the pitch p2 with respect to the virtual central plane PL22 including the center axis of the crushing ring 33 (that is, the rotation axis L2) and the center of the one key groove 33a.
  • the entire plurality of teeth of the second crushing ring 33 are arranged with a shift of 1/3 times the pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32.
  • the second crushing ring 33 having such a shape can be externally mounted on the second shaft 31 in a normal posture in which the second reference teeth 35a are positioned on one side in the circumferential direction with respect to the virtual center plane PL22.
  • the second crushing ring 33 has rotational symmetry about its central axis and the key groove 33a is disposed at a position shifted by 180 degrees, the second crushing ring 33 is located with respect to the virtual central plane PL22.
  • the second shaft 31 can be externally mounted in an inverted posture in which one side and the other side of 33 are inverted.
  • the second reference teeth 35a can be disposed at a position inverted with respect to the virtual central plane PL22, and the second reference teeth 35a are arranged on the other side in the circumferential direction with respect to the virtual central plane PL22. Are shifted by 1/3 of the pitch p2.
  • the entire plurality of crushing teeth 35 of the second crushing ring 33 are arranged with a shift of 2/3 times the pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32.
  • the plurality of crushing teeth 35 have a pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32. It can be set as the 2nd crushing ring 33 which has shifted
  • the crushing teeth 34 and 35 formed on the crushing rings 32 and 33 are arranged so as to be shifted by 1/3 times the pitch p2.
  • the second shaft 31 is packaged. That is, the second shaft 31 is externally provided with a plurality of crushing rings 32 and 33 as shown in FIG.
  • a first crushing ring 32 is externally provided on the most other end side of the second shaft 31, and the first reference teeth 34 a are located radially outward of the key 31 a of the second shaft 31.
  • a second crushing ring 33 is externally mounted on the second shaft 31 in a normal posture so as to be adjacent to the first crushing ring 32.
  • the second crushing ring 33T in the normal posture is arranged such that the second reference teeth 35a are shifted from the first reference teeth 34a of the first crushing ring 32 in the circumferential direction by 1/3 times the pitch p2. That is, the second crushing ring 33 ⁇ / b> T is externally mounted on the second shaft 31 in a state in which the entire crushing teeth 35 are shifted from the whole crushing teeth 34 of the first crushing ring 32 by 1/3 times the pitch p ⁇ b> 2. Further, next to the second crushing ring 33T in the normal posture, the second crushing ring 33 is externally mounted on the second shaft 31 in a reversed posture.
  • the second crushing ring 33R in the inverted posture is arranged such that the second reference teeth 35a are shifted from the first reference teeth 34a of the first crushing ring 32 in the other circumferential direction by 1/3 times the pitch p2. That is, the second crushing ring 33 ⁇ / b> R is externally mounted on the second shaft 31 in a state where the whole of the plurality of crushing teeth 35 is shifted by 2/3 times the pitch p ⁇ b> 2 with respect to the entire crushing teeth 34 of the first crushing ring 32. Further, the first crushing ring 32, the normal crushing second crushing ring 33T, and the inverted crushing second crushing ring 33R are repeatedly packaged in that order next to the inverted crushing second crushing ring 33R. Thus, the 2nd roll 15b is comprised by mounting
  • a tooth row 36 is formed on the outer peripheral surface of the second roll 15b thus configured by crushing teeth 34, 35 adjacent to each other in the axial direction, that is, the orthogonal direction. Note that, since the adjacent crushing teeth 34 are arranged with a shift of 1/3 times the pitch p2, the tooth row 36 extends in the orthogonal direction so as to be twisted in one circumferential direction on the outer peripheral surface of the second roll 15b. (For example, see the shaded portion of the second roll 15b in FIGS. 3 and 12 as one tooth row 36).
  • the first roll 15a disposed adjacent to the second roll 15b is also adjacent to the axial direction, that is, the orthogonal direction, and is disposed with a half pitch p1 / 2 shifted to the other circumferential direction.
  • a tooth row is formed by this, and this tooth row extends in the orthogonal direction so as to be twisted in the other circumferential direction on the outer peripheral surface of the first roll 15a.
  • the third roll 15c is configured in the same manner as the first roll 15a
  • the fourth roll 15d is configured in the same manner as the second roll 15b.
  • the four rolls 15a to 15d configured in this way are arranged at a predetermined interval in the transport direction as described above, and gaps S1 to S3 are vacant between adjacent rolls 15a to 15d.
  • the widths of the gaps S1 to S3 (that is, the length in the transport direction) are such that the rolls 15a to 15d rotate and the crushing teeth 24, 27, 34, and 35 are formed on the outer peripheral surfaces of the rolls 15a to 15d. It changes according to the position of each crushing tooth 24,27,34,35. That is, the gaps S1 to S3 have the smallest width (minimum width) when the high teeth 24a and 27a and the crushing teeth 34 and 35 face each other, and the gaps S1 to S3 have the largest width when the tooth bottoms face each other ( Maximum width).
  • the minimum width of the gaps S1 to S3 is set according to the allowable amount of load acting on the rolls 15a to 15d during crushing, and the maximum width of the gaps S1 to S3 is the allowable particle size of the cement clinker. It is set according to. Further, according to these minimum width and maximum width, the interval between the adjacent rolls 15a to 15d and the tooth depth of each crushing tooth 24, 27, 34, 35 are set.
  • the four rolls 15a to 15d configured as described above are rotationally driven by the respective rotation units 17.
  • a normal mode and a high crushing mode can be selected.
  • the first roll 15a rotates in the other circumferential direction
  • the second to fourth rolls 15b to 15d rotate in one circumferential direction.
  • the high crushing mode the first roll 15a and the third roll 15c rotate.
  • the second and fourth rolls 15b and 15d rotate in the other circumferential direction
  • the second and fourth rolls 15b and 15d rotate in one circumferential direction.
  • the four rolls 15a to 15d rotating in this way receive the cement clinker falling from the tip of the cooler device 1, and crush the received cement clinker to a particle size equal to or smaller than an allowable particle size.
  • the second to fourth rolls 15b to 15d are configured to send the falling cement clinker toward the first roll 15a.
  • the cement clinker having a particle size equal to or smaller than the allowable particle size is dropped from the gaps S2 and S3, and a large lump of cement clinker having a larger particle size is directed to the first roll 15a.
  • Sent. The first roll 15a rotates together with the second roll 15b so that the cement clinker on the first and second rolls 15a and 15b is caught between them (that is, the gap S1), and the cement clinker is interposed between them. It is designed to be crushed by being caught in. By crushing, a large lump of cement clinker becomes a cement clinker having a particle size equal to or smaller than the allowable particle size, and falls downward from the gap S1.
  • the third roll 15c also rotates to entrain the cement clinker on the third and fourth rolls 15c and 15d together with the fourth roll 15d (that is, the gap S3), The cement clinker is crushed by being caught between them.
  • crushing is performed at two locations in the roll crusher 15, and more cement clinker can be crushed and dropped downward.
  • the load acting on the crushing rings 22T, 22R, 23T, and 23R during rotation causes the crushing teeth 24 and 27 to crush the cement clinker.
  • the load that acts is reduced at other times.
  • each crushing ring 22T, 22R, 23T, 23R is rotated. The timing at which the load acting on the load increases can be made different.
  • the timing at which the load acts on each of the crushing rings 22T, 22R, 23T, and 23R during rotation can be shifted from each other.
  • the time-dependent change of the load which acts on the 1st roll 15a and the 3rd roll 15c can be leveled, As a result, the time-dependent change of the load of the rotation unit 17 can be leveled.
  • the crushing rings 22 and 23 have different tooth crushing teeth 24a to 24c and 27a to 27c, respectively. That is, not only the high teeth 24a and 27a but also the low teeth 24c and 27c are formed on the crushing rings 22 and 23, respectively. As a result, a large block of cement clinker that cannot be crushed without being pinched by the high teeth 24a, 27a can be crushed by being pinched by the low teeth 24c, 27c. Thereby, it can suppress that a large lump of cement clinker remains without being bitten on the first roll 15a and the third roll 15c.
  • the load which acts on the crushing rings 22 and 23 becomes a peak. Since the high tooth forming portion 30H and the low tooth forming portion 30L are arranged in a staggered manner on the outer peripheral surfaces of the first roll 15a and the third roll 15c, the high teeth 24a and 27a of the first roll 15a and the third roll 15c are orthogonal to each other. It is possible to prevent them from being arranged adjacent to each other in the direction. Thereby, the time-dependent change of the load which acts on the 1st roll 15a and the 3rd roll 15c can be leveled, As a result, the time-dependent change of the load of the rotation unit 17 can be leveled.
  • the first roll 15a and the third roll 15c have the first crushing ring 22 and the second crushing ring 23 mounted on the first shaft 21 in a normal posture, and the first crushing ring 22 and the second crushing ring 23 are adjacent to the first crushing ring 22 and the second crushing ring 23. Is mounted on the first shaft 21 in an inverted posture, and is further repeated. Therefore, the first roll 15 a and the third roll 15 c can be manufactured by the two types of crushing rings 22 and 23. Therefore, although four types of crushing rings 22T, 22R, 23T, and 23R are used, the types of molds for manufacturing them can be suppressed to two, and the manufacturing cost can be reduced.
  • each crushing ring 32, 33T since the adjacent crushing teeth 34 and 35 are arranged so as to be shifted from each other by 1/3 times the pitch p2 in the circumferential direction also in the second roll 15b and the fourth roll 15d, each crushing ring 32, 33T, The timing at which the load acting on 33R increases can be made different. That is, the timing at which a load acts on each of the crushing rings 32, 33T, and 33R during rotation can be shifted from each other. Thereby, the time-dependent change of the load which acts on the 2nd roll 15b and the 4th roll 15d can be leveled, and, thereby, the time-dependent change of the load of the rotation unit 17 can be leveled.
  • the tooth row 36 extends in the orthogonal direction so as to be twisted in one circumferential direction on the outer peripheral surface (the hatching of the second roll 15b in FIGS. 3 and 12). Part reference). Therefore, when the second roll 15b and the fourth roll 15d are rotated, large cement clinker remaining on the rolls 15b and 15d without falling from the gaps S1 to S3 is moved to one side in the orthogonal direction (for example, the second roll 15b). The other end side of the shaft 31 can be sent. By sending the cement clinker in this way, the cement clinker of the lump can be crushed by colliding with the cement clinker of another lump. In addition, by sending cement clinker, it is possible to guide to the gaps S1 to S3 where the cement clinker remaining on the rolls 15b and 15d can be well bitten. be able to.
  • the crushing teeth 24 and 27 adjacent in the orthogonal direction are arranged with a half pitch p1 / 2 shifted to the other circumferential direction, and a tooth row is formed by the shifted crushing teeth 24 and 27.
  • the This tooth row extends in the orthogonal direction so as to be twisted in the other circumferential direction on the outer peripheral surface of the first roll 15a. Therefore, by rotating the first roll 15a in the other circumferential direction, a large lump of cement clinker remaining on the roll 15a can be sent to one side in the orthogonal direction by this tooth row, and the second and fourth rolls 15b , 15d has the same effect as the tooth row 36.
  • the second crushing ring 32 is mounted on the second shaft 31 with the second and fourth rolls 15b and 15d, and the second crushing ring 33T in the normal posture and the second crushing ring 33R in the inverted posture are arranged next to the first crushing ring 32 in that order.
  • the second shaft 31 is packaged and manufactured by repeating it. Therefore, the 2nd roll 15b and the 4th roll 15d can be manufactured by two types of crushing rings 32 and 33.
  • FIG. therefore, although three types of crushing rings 32, 33T, and 33R are used, the number of types of molds when manufacturing them can be suppressed to two, and the manufacturing cost can be reduced.
  • the first to fourth rolls 15a to 15d are arranged in this order, and the adjacent rolls 15a to 15d are arranged to be different types of rolls.
  • the high tooth 24a and the tooth bottom, the low tooth 24c and the crushing tooth 34, the low tooth 24c and the tooth bottom, and the like can be matched.
  • the temporal change in the magnitude of the load acting on the crushing rings 22, 23, 32, 33 can be further leveled, whereby the temporal change in the load of the rotating unit 17 can be leveled.
  • the four rolls 15a to 15d are arranged so that the adjacent rolls 15a to 15d are different types of rolls, but the same roll may be used.
  • a roll having the same structure as the first roll 15a may be adopted for the four rolls
  • a roll having the same structure as the second roll 15b may be adopted for the four rolls 15a to 15d.
  • the rotation control mode of the four rolls 15a to 15d at the time of crushing is not limited to the normal mode and the high crushing mode as described above, and may be rotated in different rotation control modes.
  • the adjacent crushing teeth 24, 27, 34, and 35 are shifted from each other by 1/2 times or 1/3 times the pitch, and the shift amount may be 1/4 times the pitch. That is, it is only necessary that the amount of deviation between the adjacent crushing teeth 24, 27, 34, and 35 is 1 / n times the pitch (n: integer).
  • the second reference tooth is shifted 360 / (n ⁇ N) (N: the number of teeth of the second crushing ring) in the circumferential direction with respect to the first reference tooth. Will be placed.
  • the widths of the gaps S1 to S3 are changed by changing the positions of the tooth surfaces of the crushing teeth 24 and 27.
  • the width of the gaps S1 to S3 may be changed by changing.
  • the keys 21a and 31a are formed on the shafts 21 and 31, and the key grooves 22a, 23a, 32a and 33a are formed on the crushing rings 22, 23, 32 and 33.
  • a keyway may be formed and a key may be formed in the crushing ring.
  • the plurality of crushing rings 22 and 23 are arranged in order, a crushing ring having crushing teeth in which at least one different arrangement among the plurality of crushing rings may be used. Even in this case, the timing at which the load acting on at least one crushing ring becomes large can be shifted, which is useful for leveling the load with time.
  • the high tooth forming part 30H and the low tooth forming part 30L of the first roll 15a and the third roll 15c are not necessarily arranged in a staggered manner, and may be arranged in a striped manner. Moreover, the high-tooth formation part 30H and the low-tooth formation part 30L may be arrange

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
PCT/JP2016/003831 2015-08-31 2016-08-23 クーラ装置のロールクラッシャ WO2017038049A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16841089.2A EP3345680B2 (en) 2015-08-31 2016-08-23 Roll crusher of cooler device
JP2017537530A JP6886403B2 (ja) 2015-08-31 2016-08-23 クーラ装置のロールクラッシャ
DK16841089.2T DK3345680T4 (da) 2015-08-31 2016-08-23 Rulleknuser til køleindretning
MYPI2018700806A MY192199A (en) 2015-08-31 2016-08-23 Roll crusher of cooler apparatus

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CN201510547111.9 2015-08-31
CN201510547111.9A CN106475180A (zh) 2015-08-31 2015-08-31 冷却装置的辊式破碎机

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CN112934361A (zh) * 2021-04-02 2021-06-11 中冶节能环保有限责任公司 一种熔融钢渣盘式风冷双旋辊破碎处理装置及方法

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DK3345680T3 (da) 2020-08-03
EP3345680B1 (en) 2020-05-27
JP6886403B2 (ja) 2021-06-16
TWI636830B (zh) 2018-10-01
JPWO2017038049A1 (ja) 2018-06-14
DK3345680T4 (da) 2023-06-12
EP3345680A4 (en) 2019-03-13
EP3345680B2 (en) 2023-05-24
CN106475180A (zh) 2017-03-08
MY192199A (en) 2022-08-05
EP3345680A1 (en) 2018-07-11

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