CN111076556A - Vertical cement clinker cooling tower - Google Patents

Vertical cement clinker cooling tower Download PDF

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Publication number
CN111076556A
CN111076556A CN201911256076.XA CN201911256076A CN111076556A CN 111076556 A CN111076556 A CN 111076556A CN 201911256076 A CN201911256076 A CN 201911256076A CN 111076556 A CN111076556 A CN 111076556A
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CN
China
Prior art keywords
temperature
air
cement clinker
shell
air inlet
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Pending
Application number
CN201911256076.XA
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Chinese (zh)
Inventor
吴钢
王鑫
刘志强
张健
李岳林
李微
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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Publication date
Application filed by Changsha University of Science and Technology filed Critical Changsha University of Science and Technology
Priority to CN201911256076.XA priority Critical patent/CN111076556A/en
Publication of CN111076556A publication Critical patent/CN111076556A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0286—Cooling in a vertical, e.g. annular, shaft
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/47—Cooling ; Waste heat management
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0286—Cooling in a vertical, e.g. annular, shaft
    • F27D2015/0293—Cooling in a vertical, e.g. annular, shaft including rotating parts

Abstract

The invention discloses a vertical cement clinker cooling tower which comprises a charging part, a crushing mechanism, a cooling device and a discharging part which are sequentially communicated from top to bottom; the cooling device comprises a second shell, a stirring ventilation mechanism and a second motor, wherein a plurality of air outlets are formed in the top of the second shell, and the stirring ventilation mechanism comprises a rotating shaft and blades. The air outlets are uniformly distributed in the inner space of the second shell, and the stirring and ventilating mechanism can stir the high-temperature cement clinker in a rotating manner, so that the condition of uneven cooling cannot occur; the air outlet is arranged at the top of the second shell, countercurrent heat exchange can be realized between high-temperature cement clinker and gas, the heat exchange efficiency is high, the gas after heat exchange is discharged from the upper part of the cooling device to be used as secondary air and tertiary air, and the heat utilization rate is high; the opening degree of the air hole valve and the opening degree of the discharging valve are controlled by the temperature detector in a feedback mode, so that the actual cooling temperature of the cement clinker can approach to the ideal cooling temperature, and the improvement of the quality and the yield of the cement is facilitated.

Description

Vertical cement clinker cooling tower
Technical Field
The invention relates to the technical field of cement production, in particular to a vertical cement clinker cooling tower.
Background
The cooling of cement clinker in the course of cement production is a very important stage, and its cooling effect directly determines the quality and yield of cement, and after the cement is calcined into high-temp. clinker by rotary kiln, it must be quickly cooled so as to make β -C with hydration activity in the cement2Conversion of S to non-hydratable gamma-C2And S, preventing the components of the cement from being damaged. The quenched cement clinker crystals have a plurality of microcracks, which are beneficial to grinding, and the cost of the conveying device is reduced because the temperature of the cement is reduced.
At present, cement clinker coolers mainly have two forms: cylinder type (including single cylinder and multiple cylinders) and grate type.
For single-cylinder and multi-cylinder cooling machines, an air blower blows air into the cooling machine to exchange heat with high-temperature clinker in the cooling machine, and the high-temperature clinker is cooled; for the grate cooler, high-temperature clinker is discharged from a kiln opening onto a grate bed and is pushed to and fro by the grate bed to form a material bed with a certain thickness, air is blown in from the lower part of the grate bed by an air blower, the blown air and the high-temperature clinker carry out heat exchange, and a heat collection cover is arranged at the top of the grate bed to collect hot air for waste heat utilization.
Compared with a grate cooler, the drum cooler has the defects that the high-temperature clinker cannot be cooled quickly, and the temperature of the secondary air and the tertiary air is lower. The grate cooler can meet the requirement of clinker quenching, and the secondary air temperature and the tertiary air temperature can reach 900-1000 ℃. However, the temperature of the cement clinker at the tail end of the grate cooler is low, the temperature of the air after heat exchange with the clinker is low, and the air cannot be recycled and directly discharged into the atmosphere, so that resource waste and environmental pollution are caused; and the clinker in the grate cooler is cooled unevenly, the cooling effect of the clinker at the lower side in the height direction is better than that at the upper side, and the cooling effect of the clinker at the middle in the width direction is better than that at the two sides.
Disclosure of Invention
The invention aims to provide a vertical cement clinker cooling tower.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vertical cement clinker cooling tower comprises a charging part, a crushing mechanism, a cooling device and a discharging part which are sequentially communicated from top to bottom;
the charging part is in a conical surface shape with a large upper part and a small lower part so as to receive high-temperature cement clinker conveyed by a discharge pipe of the rotary kiln and guide the high-temperature cement clinker into the crushing mechanism below;
the crushing mechanism comprises a first shell, crushing gears and a first motor, wherein the crushing gears are arranged in pairs and are in transmission connection with the first motor so as to crush high-temperature cement clinker introduced from the charging part;
the cooling device comprises a second shell, a stirring and ventilating mechanism and a second motor, wherein the top of the second shell is provided with a plurality of air outlets, and the stirring and ventilating mechanism comprises a rotating shaft and blades;
the cooling tower further comprises an air inlet mechanism, the air inlet mechanism comprises an air inlet chamber, an air inlet pipe and a fan, the air inlet chamber is fixedly arranged at the bottom of the second shell, and the fan is communicated with the air inlet chamber through the air inlet pipe;
the second motor is positioned below the air inlet chamber, one end of the rotating shaft is in transmission connection with the second motor, the other end of the rotating shaft penetrates through the air inlet chamber upwards to enter the second shell and extends to a position close to the top of the second shell, the blades are positioned in the second shell and divided into a plurality of groups, the blades of the plurality of groups are uniformly arranged along the length direction of the rotating shaft at intervals, the blades in each group are uniformly arranged at intervals along the circumferential direction of the rotating shaft, the blades and the rotating shaft are both provided with cavities, the cavities of the blades are communicated with the cavity of the rotating shaft, the part of the rotating shaft, which is positioned in the air inlet chamber, is provided with a plurality of air inlet holes, the air inlet holes are communicated with the cavity in the rotating shaft, a plurality of air outlet holes are uniformly arranged on each blade along the length direction of the corresponding blade at intervals, and the air outlet holes are communicated with the cavity in the blade;
the second shell is communicated with the discharging part through a discharging pipe, and a discharging valve is arranged on the discharging pipe;
and the air outlet holes are provided with air hole valves, and the blades are provided with temperature detectors close to the air outlet holes in a one-to-one correspondence manner so as to control the opening degrees of the air hole valves and the discharge valve in a feedback manner.
As a further improved technical solution of the present invention, the air vent valve is fully closed when the temperature fed back by the corresponding temperature detector is lower than a preset first temperature threshold lower limit, the opening degree of the corresponding air vent valve changes in positive correlation with the temperature fed back by the temperature detector when the temperature fed back by the temperature detector changes from the preset first temperature threshold lower limit to the preset first temperature threshold upper limit, and the air vent valve is fully opened when the temperature fed back by the corresponding temperature detector is higher than the preset first temperature threshold upper limit.
As a further improved technical solution of the present invention, the discharge valve is fully opened when the average value of the feedback temperatures of all the temperature detectors is lower than the preset second temperature threshold lower limit, the opening degree of the discharge valve is inversely related to the average value of the feedback temperatures of all the temperature detectors when the average value of the feedback temperatures of all the temperature detectors changes between the preset second temperature threshold lower limit and the preset second temperature threshold upper limit, and the discharge valve is fully closed when the average value of the feedback temperatures of all the temperature detectors is higher than the preset second temperature threshold upper limit.
As a further improved technical scheme of the invention, a charging cover is also arranged above the charging part, the rotary kiln discharge pipe is communicated with the charging cover, and a rotary kiln air intake is arranged on the charging cover.
As a further improved technical solution of the present invention, the bottom of the first housing is in the shape of a conical surface with a large top and a small bottom, and the first housing is communicated with the second housing through a connecting pipe.
As a further improved technical scheme of the invention, the end part of the rotating shaft in transmission connection with the second motor is of a solid structure.
As a further improved technical scheme of the invention, the air outlet holes are formed in the lower surface of the blade.
Compared with the prior art, the invention has the technical effects that:
1. the air outlets are uniformly distributed in the inner space of the second shell, and the stirring and ventilating mechanism can stir the high-temperature cement clinker in a rotating manner, so that the condition of uneven cooling cannot occur;
2. the air outlet is arranged at the top of the second shell, countercurrent heat exchange can be realized between high-temperature cement clinker and gas, the heat exchange efficiency is high, the gas after heat exchange is discharged from the upper part of the cooling device to be used as secondary air and tertiary air, and the heat utilization rate is high;
3. the crushing mechanism is provided with a first shell which is a relatively closed space, and after high-temperature cement clinker enters the crushing mechanism from the charging part, dust is not easy to leak to pollute the environment when the crushing gear is used for crushing treatment;
4. the opening of the air hole valve and the opening of the discharge valve are controlled by the temperature detector in a feedback mode, so that the actual cooling temperature of cement clinker approaches to the ideal cooling temperature, the improvement of the quality and the yield of cement is facilitated, meanwhile, when the temperature is lower than the lower limit of a preset first temperature threshold, the corresponding air hole valve is completely closed, the blockage prevention effect can be achieved, in addition, the opening of the air hole valve is controlled according to the temperature, the air volume is further controlled, the air after heat exchange can be kept at a high temperature, and the air can be recycled;
5. the cooling tower is integrally designed in a vertical mode, the occupied area is small, and the installation cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a vertical cement clinker cooling tower according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angle configuration of a vertical cement clinker cooling tower in accordance with an embodiment of the present invention;
fig. 3 is a schematic bottom view of the stirring and ventilating mechanism.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
Referring to fig. 1 to 3, a vertical cement clinker cooling tower comprises a charging part 1, a crushing mechanism 2, a cooling device 3 and a discharging part 4 which are sequentially communicated from top to bottom;
the charging part 1 is in a conical surface shape with a large upper part and a small lower part so as to receive high-temperature cement clinker conveyed by a discharge pipe 5 of the rotary kiln and guide the high-temperature cement clinker into the crushing mechanism 2 below;
the crushing mechanism 2 comprises a first shell 21, crushing gears 22 and a first motor 23, wherein the crushing gears 22 are arranged in pairs, and the crushing gears 22 are arranged in the first shell 21 and are in transmission connection with the first motor 23 so as to crush the high-temperature cement clinker introduced from the charging part 1;
the cooling device 3 comprises a second shell 34, a stirring ventilation mechanism 31 and a second motor 32, wherein the top of the second shell 34 is provided with a plurality of air outlets 33 (in the embodiment, the number of the air outlets 33 is 4), and the stirring ventilation mechanism 31 comprises a rotating shaft 311 and blades 312;
the cooling tower further comprises an air inlet mechanism 6, the air inlet mechanism 6 comprises an air inlet chamber 61, an air inlet pipe 62 and a fan 63, the air inlet chamber 61 is fixedly arranged at the bottom of the second shell 34 (the air inlet chamber 61 is a sealed steel rectangular shell), and the fan 63 is communicated with the air inlet chamber 61 through the air inlet pipe 62;
the second motor 32 is located below the air inlet chamber 61, one end of the rotating shaft 311 is in transmission connection with the second motor 32, the other end of the rotating shaft 311 upwards penetrates through the air inlet chamber 61 and enters the second shell 34 and extends to a position close to the top of the second shell 34, the blades 312 are located in the second shell 34 and are divided into a plurality of groups, the plurality of groups of blades 312 are evenly arranged along the length direction of the rotating shaft 311 at intervals, the blades 312 in each group are evenly arranged along the circumferential direction of the rotating shaft 311 at intervals, cavities are arranged in the blades 312 and the rotating shaft 311, the cavities of the blades 312 are communicated with the cavity of the rotating shaft 311, a plurality of air inlet holes are arranged on the part of the rotating shaft 311 located in the air inlet chamber 61 and are communicated with the cavity in the rotating shaft 311, and a plurality of air outlet holes 313 are evenly arranged on each blade 312 along the length direction of the corresponding blade 312 at intervals, the air outlet 313 is communicated with the cavity in the blade 312;
the second shell 34 is communicated with the discharging part 4 through a discharging pipe 7, and a discharging valve 8 is arranged on the discharging pipe 7;
air hole valves are arranged at the air outlet holes 313, and temperature detectors 314 are correspondingly arranged on the blades 312 close to the air outlet holes 313 one by one so as to control the opening degrees of the air hole valves and the discharge valve 8 in a feedback mode.
Further, the air vent valve is fully closed when the temperature fed back by the corresponding temperature detector 314 is lower than a preset first temperature threshold lower limit, the opening degree of the corresponding air vent valve changes in positive correlation with the temperature fed back by the temperature detector 314 when the temperature fed back by the temperature detector 314 changes from the preset first temperature threshold lower limit to the preset first temperature threshold upper limit (the opening degree is larger when the temperature is higher), and the air vent valve is fully opened when the temperature fed back by the corresponding temperature detector 314 is higher than the preset first temperature threshold upper limit.
Further, the dump valve 8 is fully opened when the average value of the feedback temperatures of all the temperature detectors 314 (the sum of the feedback temperature values of all the temperature detectors 314 is divided by the number of the temperature detectors 314) is lower than the preset second temperature threshold lower limit, the opening degree of the dump valve 8 when the average value of the feedback temperatures of all the temperature detectors 314 changes between the preset second temperature threshold lower limit and the preset second temperature threshold upper limit is inversely related to the average value of the feedback temperatures of all the temperature detectors 314 (the opening degree is smaller when the temperature is higher), and the dump valve 8 is fully closed when the average value of the feedback temperatures of all the temperature detectors 314 is higher than the preset second temperature threshold upper limit.
Further, a charging cover 9 is further arranged above the charging portion 1, the rotary kiln discharging pipe 5 is communicated with the charging cover 9, and a rotary kiln air intake 91 is arranged on the charging cover 9.
Further, the bottom of the first housing 21 is a conical surface with a large top and a small bottom, and the first housing 21 is communicated with the second housing 34 through a connecting pipe 10.
Further, the end of the rotating shaft 311 in transmission connection with the second motor 32 is of a solid structure.
Further, the air outlet hole 313 is provided on a lower surface of the vane 312.
Further, the discharge unit 4 is also formed in a tapered shape having a large top and a small bottom.
The bottom of the charging section 1, the discharging section 4 and the first casing 21 is funnel-shaped for better circulation of the high temperature cement clinker.
The rotary kiln discharge pipe 5 sends the roasted high-temperature cement clinker into the charging part 1; the charging part 1 sends the high-temperature cement clinker into the crushing mechanism 2 for crushing operation, and then sends the high-temperature cement clinker into the cooling device 3 for cooling operation; the cooling device 3 uniformly cools the high-temperature cement clinker in the second shell 34 along the height and diameter directions by using the stirring and ventilating mechanism 31, wherein the temperature detector 314 on the blade 312 can be used for accurately controlling the cooling process, so that the cooled cement meets the process requirements, the temperature and the air volume of the secondary air and the tertiary air are optimized, and meanwhile, the opening degree of the discharge valve 8 can be controlled according to the feedback of the temperature detector 314, so that the discharge speed is controlled, and the cooling time is controlled; the cooled cement is discharged through the discharging part 4.
Specifically, the air inlet chamber 61 is communicated with the fan 63 through the air inlet pipe 62, the fan 63 blows air to the air inlet chamber 61 through the air inlet pipe 62, cold air enters the inside of the rotating shaft 311 along the air inlet hole on the surface of the rotating shaft 311 in the air inlet chamber 61, enters the blades 312 through the inner cavity, is sent into the second shell 34 through the air outlet holes 313 below the blades 312, hot air which is subjected to heat exchange with high-temperature cement clinker flows out through the air outlet 33 at the top of the second shell 34, and is further used as secondary air and tertiary air for waste heat utilization;
it is worth mentioning that, after the cement clinker enters the second casing 34, the stirring ventilation mechanism 31 rotates and is combined with the air intake mechanism 6 to blow cold air from the air outlet holes 313 on the blades 312. Meanwhile, the temperature detector 314 monitors the temperature of the cement clinker near each air outlet 313, when the temperature of the cement clinker at the corresponding position changes from being higher than the upper limit of the preset first temperature threshold to being lower than the lower limit of the preset first temperature threshold, the opening of the air outlet valve on the blade 312 is reduced (the amount of cold air blowing is reduced) until the air outlet valve is closed, and when the average temperature of the cement clinker changes from being higher than the upper limit of the preset second temperature threshold to being lower than the lower limit of the preset second temperature threshold, the opening of the discharge valve 8 is increased (the discharge speed is increased), so that the cooling time of the cement clinker is reduced, and the actual cooling temperature of the cement clinker approaches to the ideal cooling temperature;
similarly, when the temperature of the cement clinker at the corresponding position changes from being lower than the lower limit of the preset first temperature threshold to being higher than the upper limit of the preset first temperature threshold, the opening of the vent valve on the blade 312 is increased (the amount of cold air blown in is increased) until the opening is completely opened, and when the average temperature of the cement clinker changes from being lower than the lower limit of the preset second temperature threshold to being higher than the upper limit of the preset second temperature threshold, the opening of the discharge valve 8 is decreased (the discharge speed is reduced), so that the cooling time of the cement clinker is increased, and the actual cooling temperature of the cement clinker approaches to the ideal cooling temperature.
Compared with the prior art, the invention has the technical effects that:
the air outlet holes 313 are uniformly distributed in the inner space of the second shell 34, and the stirring and ventilating mechanism 31 can stir the high-temperature cement clinker in a rotating manner, so that the condition of uneven cooling is avoided;
the air outlet 33 is arranged at the top of the second shell 34, the countercurrent heat exchange between the high-temperature cement clinker and the gas can be realized, the heat exchange efficiency is high, the gas after the heat exchange is discharged from the upper part of the cooling device 3 to be used as secondary air and tertiary air, and the heat utilization rate is high;
the crushing mechanism 2 is provided with a first shell 21 which is a relatively closed space, and after high-temperature cement clinker enters the crushing mechanism 2 from the charging part 1, dust is not easy to leak to pollute the environment when crushing treatment is carried out by the crushing gear 22;
the opening degree of the air hole valve and the opening degree of the discharge valve 8 are controlled in a feedback mode through the temperature detector 314, so that the actual cooling temperature of the cement clinker can approach to the ideal cooling temperature, the improvement of the cement quality and the yield are facilitated, meanwhile, when the temperature is lower than the lower limit of the preset first temperature threshold, the corresponding air hole valve is completely closed, the blocking prevention effect can be achieved, in addition, the opening degree of the air hole valve is controlled according to the temperature, the air volume is further controlled, the air after heat exchange can be kept at a high temperature, and the air can be recycled;
the cooling tower is integrally designed in a vertical mode, the occupied area is small, and the installation cost is reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (7)

1. A vertical cement clinker cooling tower is characterized by comprising a charging part, a crushing mechanism, a cooling device and a discharging part which are sequentially communicated from top to bottom;
the charging part is in a conical surface shape with a large upper part and a small lower part so as to receive high-temperature cement clinker conveyed by a discharge pipe of the rotary kiln and guide the high-temperature cement clinker into the crushing mechanism below;
the crushing mechanism comprises a first shell, crushing gears and a first motor, wherein the crushing gears are arranged in pairs and are in transmission connection with the first motor so as to crush high-temperature cement clinker introduced from the charging part;
the cooling device comprises a second shell, a stirring and ventilating mechanism and a second motor, wherein the top of the second shell is provided with a plurality of air outlets, and the stirring and ventilating mechanism comprises a rotating shaft and blades;
the cooling tower further comprises an air inlet mechanism, the air inlet mechanism comprises an air inlet chamber, an air inlet pipe and a fan, the air inlet chamber is fixedly arranged at the bottom of the second shell, and the fan is communicated with the air inlet chamber through the air inlet pipe;
the second motor is positioned below the air inlet chamber, one end of the rotating shaft is in transmission connection with the second motor, the other end of the rotating shaft penetrates through the air inlet chamber upwards to enter the second shell and extends to a position close to the top of the second shell, the blades are positioned in the second shell and divided into a plurality of groups, the blades of the plurality of groups are uniformly arranged along the length direction of the rotating shaft at intervals, the blades in each group are uniformly arranged at intervals along the circumferential direction of the rotating shaft, the blades and the rotating shaft are both provided with cavities, the cavities of the blades are communicated with the cavity of the rotating shaft, the part of the rotating shaft, which is positioned in the air inlet chamber, is provided with a plurality of air inlet holes, the air inlet holes are communicated with the cavity in the rotating shaft, a plurality of air outlet holes are uniformly arranged on each blade along the length direction of the corresponding blade at intervals, and the air outlet holes are communicated with the cavity in the blade;
the second shell is communicated with the discharging part through a discharging pipe, and a discharging valve is arranged on the discharging pipe;
and the air outlet holes are provided with air hole valves, and the blades are provided with temperature detectors close to the air outlet holes in a one-to-one correspondence manner so as to control the opening degrees of the air hole valves and the discharge valve in a feedback manner.
2. The vertical cement clinker cooling tower of claim 1, wherein the air vent valve is completely closed when the temperature fed back by the corresponding temperature detector is lower than a preset first lower temperature threshold, the opening of the air vent valve changes in positive correlation with the temperature fed back by the temperature detector when the temperature fed back by the temperature detector changes from the preset first lower temperature threshold to a preset first upper temperature threshold, and the air vent valve is completely opened when the temperature fed back by the corresponding temperature detector is higher than the preset first upper temperature threshold.
3. The vertical cement clinker cooling tower of claim 1, wherein the discharge valve is fully opened when the average of the feedback temperatures of all the temperature detectors is lower than a preset second temperature threshold lower limit, the opening degree of the discharge valve is inversely related to the average of the feedback temperatures of all the temperature detectors when the average of the feedback temperatures of all the temperature detectors is changed between the preset second temperature threshold lower limit and the preset second temperature threshold upper limit, and the discharge valve is fully closed when the average of the feedback temperatures of all the temperature detectors is higher than the preset second temperature threshold upper limit.
4. The vertical cement clinker cooling tower as recited in claim 1, wherein a charging hood is further provided above the charging portion, the rotary kiln discharge pipe is communicated with the charging hood, and a rotary kiln air intake is provided on the charging hood.
5. The vertical cement clinker cooling tower of claim 1, wherein the bottom of the first housing is in the shape of a cone with a large top and a small bottom, and the first housing is communicated with the second housing through a connecting pipe.
6. The vertical cement clinker cooling tower of claim 1, wherein the end of the rotating shaft in transmission connection with the second motor is of a solid structure.
7. The vertical cement clinker cooling tower of claim 1, wherein the air outlet holes are provided on the lower surface of the blades.
CN201911256076.XA 2019-12-10 2019-12-10 Vertical cement clinker cooling tower Pending CN111076556A (en)

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Publication number Priority date Publication date Assignee Title
CN113149617A (en) * 2021-03-01 2021-07-23 江苏新时高温材料股份有限公司 Plate-shaped corundum cooked ball air cooling treatment equipment and treatment method thereof
CN114353553A (en) * 2021-12-03 2022-04-15 上海宝协新能源科技有限公司 Energy feedback system and method using cooling water tower
CN114534881A (en) * 2022-02-16 2022-05-27 洪文祥 Cement raw meal calcining equipment

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CN107484823A (en) * 2017-09-01 2017-12-19 石岩 A kind of stirring-type drying device of cereal
CN207180340U (en) * 2017-08-10 2018-04-03 北京华索科技股份有限公司 A kind of Active Lime Rotary Kiln secondary cooling energy saver
CN207881422U (en) * 2018-02-15 2018-09-18 河北新世纪药业有限公司 A kind of comprehensive drying equipment of powdered substance

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CN204490743U (en) * 2015-04-07 2015-07-22 广东梅雁吉祥水电股份有限公司 A kind of cooler for cement processing
CN105669059A (en) * 2016-01-07 2016-06-15 湖南大学 Vertical type cement clinker cooling tower
CN207180340U (en) * 2017-08-10 2018-04-03 北京华索科技股份有限公司 A kind of Active Lime Rotary Kiln secondary cooling energy saver
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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN113149617A (en) * 2021-03-01 2021-07-23 江苏新时高温材料股份有限公司 Plate-shaped corundum cooked ball air cooling treatment equipment and treatment method thereof
CN113149617B (en) * 2021-03-01 2022-10-25 江苏新时高温材料股份有限公司 Plate-shaped corundum cooked ball air cooling treatment equipment and treatment method thereof
CN114353553A (en) * 2021-12-03 2022-04-15 上海宝协新能源科技有限公司 Energy feedback system and method using cooling water tower
CN114353553B (en) * 2021-12-03 2023-12-19 上海宝协新能源科技有限公司 Energy feedback system and method using cooling water tower
CN114534881A (en) * 2022-02-16 2022-05-27 洪文祥 Cement raw meal calcining equipment

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Application publication date: 20200428