CN208333138U - A kind of cement rotary kiln waste-heat recovery device of multiple-protection - Google Patents
A kind of cement rotary kiln waste-heat recovery device of multiple-protection Download PDFInfo
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- CN208333138U CN208333138U CN201820961698.7U CN201820961698U CN208333138U CN 208333138 U CN208333138 U CN 208333138U CN 201820961698 U CN201820961698 U CN 201820961698U CN 208333138 U CN208333138 U CN 208333138U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model the utility model provides a kind of cement rotary kiln waste-heat recovery device of multiple-protection, including kiln body, heat recovery draught fan structure, box structure can be stored, thermal-arrest ring structure, inverted U support frame can be protected, thermal insulation paint, water inlet pipe, check-valves, fixed plate, check valve, handle, block, pulley, sliding rail and filter screen, the heat recovery draught fan structural bolts are mounted on the downside outside kiln body；The box structure that stores is plugged on the lower right side that can protect thermal-arrest ring structure；The outside for protecting thermal-arrest ring structure bolt to be mounted on kiln body.The utility model is conducive to for the waste heat of kiln body being blown into cement placing box, and then is thermally decomposed in advance to cement into hot hole, the setting of fan blade and thermal energy motor；The setting of activated carbon filter layer and quartz sand filtration layer, the aqueous after being conducive to filtering and heating, and then prevent in the aqueous in water tank with impurity.
Description
Technical field
The utility model belongs to rotary kiln heat recovery technology field more particularly to a kind of cement rotary kiln of multiple-protection
Use waste-heat recovery device.
Background technique
Cement production process process includes broken and pre- homogenizing, raw material preparation, raw material homogenizing, pre- thermal decomposition, clinker
The seven big steps such as firing, cement grinding, cement packing, the cement machineries equipment such as cement grinding mill and cement rotary kiln in above-mentioned steps
Play the role of critical.A large amount of heat loss is usually associated in cement production process, positioned at the revolution of clinkering zone
Kiln cylinder body surface temperature is up to 350 DEG C, in order to cool down to kiln body surface, traditional method be loaded onto cylinder two sides it is several
A high power air blowers not only expend a large amount of electric energy in this way, but also increase the environment temperature of surrounding rapidly.
Chinese Patent Application No. is 201720676299.1, and invention and created name is a kind of cement rotary kiln waste heat recycling dress
It sets, including kiln body and bracket, the collector mat coaxially arranged with kiln body is equipped with above the kiln body, is provided with collection in the collector mat
Hot-water line, the collection hot-water line include upper layer collection hot-water line and lower layer's collection hot-water line, and lower layer's collection hot-water line is positioned close to
The outer layer of the internal layer of kiln body, lower layer's collection hot-water line is equipped with stainless steel plate, and the stainless steel plate is coated with close to the side of kiln body
Coating, the stainless steel plate are equipped with upper layer collection hot-water line far from the side of kiln body, and the outer layer of the upper layer collection hot-water line is provided with
Color steel plate.
But existing cement rotary kiln waste-heat recovery device does not have and carries out to aqueous there is also heat insulation effect is poor
It filters and does not have the problem of being thermally decomposed in advance using waste heat to cement.
Therefore, the cement rotary kiln for inventing a kind of multiple-protection is very necessary with waste-heat recovery device.
Utility model content
In order to solve the above-mentioned technical problem, the cement rotary kiln that the utility model provides a kind of multiple-protection is recycled with waste heat
Device, it is poor to solve existing cement rotary kiln waste-heat recovery device heat insulation effect, do not have and aqueous is filtered and not
Has the problem of being thermally decomposed in advance using waste heat to cement.A kind of cement rotary kiln waste-heat recovery device of multiple-protection,
Including kiln body, heat recovery draught fan structure can store box structure, can protect thermal-arrest ring structure, inverted U support frame, thermal insulation paint, into
Water pipe, check-valves, fixed plate, check valve, handle, block, pulley, sliding rail and filter screen, the heat recovery draught fan structure
Bolt is mounted on the downside outside kiln body；The box structure that stores is plugged on the lower right side that can protect thermal-arrest ring structure；Institute
The outside for protecting thermal-arrest ring structure bolt to be mounted on kiln body stated；The inverted U support frame bolt, which is mounted on, can protect collection
The outer upper of hot ring structure；The thermal insulation paint is sprayed on the outside on inverted U support frame top；The water inlet pipe is longitudinally inserted
It connects in the lower left side that can protect thermal-arrest ring structure；The check-valves is mounted on the middle position inside water inlet pipe；Described consolidates
Middle position of the fixed board transverse weld on the inside of inverted U support frame；The check valve, which is mounted on, can protect thermal-arrest ring structure
Lower right side；The handle longitudinal bolt is mounted on the middle and lower part on front side of inverted U support frame；Pulley is arranged in the block
Front and rear sides, and it is plugged on the front and rear sides inside sliding rail respectively；The pulley spindle connects the quadrangle in inverted U support frame lower end
Place, and slide the inside for being connected to sliding rail；The filter screen is glued to the downside inside water inlet pipe；The waste heat recycles wind
Machine structure includes sending heat pipe, fan shroud, into hot hole, mounting plate, fan blade, thermal energy motor, stainless steel Air Filter and cement placing box,
Described send heat pipe to be plugged on the upper right side inside cement placing box；The fan shroud bolt, which is mounted on, to be sent in inside heat pipe
Upside；The inside for being successively provided with mounting plate from left to right into hot hole；The installation crab bolt, which is mounted on, send heat pipe
Internal upside；The fan blade is separately mounted to the outside of thermal energy motor；The thermal energy motor bolt is mounted on fan shroud
Internal upside；The stainless steel Air Filter bolt is mounted on the downside for sending inside heat pipe.
Preferably, the box structure that stores includes water tank, outlet pipe, activated carbon filter layer, screen pipe, quartz sand mistake
Filtering layer and fire blanket, the outlet pipe are plugged on the middle position of water tank upper inside；The activated carbon filter layer is placed
Upside inside screen pipe；The screen pipe is glued to the downside inside outlet pipe；The quartz sand filtration layer is placed
Middle downside inside screen pipe；The activated carbon filter layer is set as being vertically connected with quartz sand filtration layer；Described is anti-
Fiery blanket is glued to the outside of water tank.
Preferably, the thermal-arrest ring structure that protects includes ceramic fibre ring, stainless steel ring, snakelike collection hot-water line, coloured silk
Steel loop, heat-preservation cotton, apopore and inlet opening, the stainless steel ring bolt are mounted on the outside of heat-preservation cotton；The snakelike collection
Bolt is mounted on the outside of stainless steel ring to hot-water line respectively；The color steel loop bolt is mounted on the outside of snakelike collection hot-water line；
The heat-preservation cotton bolt is mounted on the inside of stainless steel ring；The apopore is provided with the lower right side of snakelike collection hot-water line；
The inlet opening is provided with the lower left side of snakelike collection hot-water line.
Preferably, the outer lower portion of the upper end for sending heat pipe and kiln body is bolted.
Preferably, the left upper end of the outlet pipe is plugged on the outside of apopore.
Preferably, the inner wall of ceramic fibre ring and the outer wall of kiln body are bolted.
Preferably, the upper end of the water inlet inside pipe wall is socketed in the outside of inlet opening.
Preferably, the left front portion on the inside of inverted U support frame is arranged in the cement placing box.
Preferably, it is bolted on the upside of the upside of the color steel loop outer wall and inverted U support frame inner wall.
Preferably, the thermal energy motor specifically uses model yl90l-4 constant speed motor.
Preferably, the snakelike collection hot-water line uses diameter for five centimetres to eight centimetres of 316L stainless steel tube.
Compared with prior art, the utility model has the following beneficial effects:
1. in the utility model, described into hot hole, the setting of fan blade and thermal energy motor is conducive to cement to be placed into water
In mud placing box, the waste heat of rotary kiln is blown into cement placing box, and then is thermally decomposed in advance to cement.
2. in the utility model, the setting of the stainless steel Air Filter is beneficial to prevent concrete grey and enters and send heat pipe
It is interior, it avoids a large amount of concrete greys and enters and send in heat pipe and be adsorbed on fan blade.
3. in the utility model, the setting of the activated carbon filter layer and quartz sand filtration layer is conducive to filtering and heating
Aqueous afterwards, and then prevent in the aqueous in water tank with impurity.
4. in the utility model, the setting of the fire blanket is beneficial to prevent the water tank for accidentally contacting higher temperature and scalds
Hurt skin.
5. in the utility model, the setting of the water tank is conducive to aqueous after collection heating, while facilitating staff
Use the aqueous after heating.
6. in the utility model, the ceramic fibre ring, stainless steel ring, color steel loop, the setting of heat-preservation cotton and thermal insulation paint,
Be conducive to the multiple-protection rotary kiln and give out radiant heat, while improving the effect of heat preservation.
7. in the utility model, the setting of the snakelike collection hot-water line, be conducive to improve cement rotary kiln is distributed it is remaining
The utilization rate of heat, while conveniently aqueous is heated.
8. in the utility model, the setting of the pulley and sliding rail is conducive to be moved easily inverted U support frame.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the heat recovery draught fan structure of the utility model.
Fig. 3 is the structural schematic diagram for storing box structure of the utility model.
Fig. 4 is the structural schematic diagram for protecting thermal-arrest ring structure of the utility model.
In figure:
1, kiln body；2, heat recovery draught fan structure；21, heat pipe is sent；22, fan shroud；23, into hot hole；24, mounting plate；25,
Fan blade；26, thermal energy motor；27, stainless steel Air Filter；28, cement placing box；3, box structure can be stored；31, water tank；32, it is discharged
Pipe；33, activated carbon filter layer；34, screen pipe；35, quartz sand filtration layer；36, fire blanket；4, thermal-arrest ring structure can be protected；41,
Ceramic fibre ring；42, stainless steel ring；43, snakelike collection hot-water line；44, color steel loop；45, heat-preservation cotton；46, apopore；47, it intakes
Hole；5, inverted U support frame；6, thermal insulation paint；7, water inlet pipe；8, check-valves；9, fixed plate；10, check valve；11, handle；12, it keeps off
Block；13, pulley；14, sliding rail；15, filter screen.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
Embodiment:
As shown in attached drawing 1 to attached drawing 4
The utility model provides a kind of cement rotary kiln waste-heat recovery device of multiple-protection, including kiln body 1, and waste heat returns
Blower fan structure 2 is received, box structure 3 can be stored, thermal-arrest ring structure 4, inverted U support frame 5, thermal insulation paint 6, water inlet pipe 7, non-return can be protected
Valve 8, fixed plate 9, check valve 10, handle 11, block 12, pulley 13, sliding rail 14 and filter screen 15, the heat recovery draught fan
2 bolt of structure is mounted on the downside outside kiln body 1；The box structure 3 that stores is plugged on the right side that can protect thermal-arrest ring structure 4
Downside；The outside for protecting 4 bolt of thermal-arrest ring structure to be mounted on kiln body 1；5 bolt of the inverted U support frame installation
In the outer upper that can protect thermal-arrest ring structure 4；The thermal insulation paint 6 is sprayed on the outside on 5 top of inverted U support frame；It is described
Water inlet pipe 7 longitudinal be plugged on the lower left side that can protect thermal-arrest ring structure 4；The check-valves 8 is mounted on inside water inlet pipe 7
Middle position；Middle position of 9 transverse weld of fixed plate in 5 inside of inverted U support frame；The check valve 10 is installed
In the lower right side that can protect thermal-arrest ring structure 4；Under 11 longitudinal bolt of handle is mounted in 5 front side of inverted U support frame
Portion；The front and rear sides of pulley 13 are arranged in the block 12, and are plugged on the front and rear sides inside sliding rail 14 respectively；Described
13 axis of pulley connects the four corners in 5 lower end of inverted U support frame, and slides the inside for being connected to sliding rail 14；The filter screen 15
It is glued to the downside inside water inlet pipe 7；The heat recovery draught fan structure 2 includes sending heat pipe 21, fan shroud 22, into hot hole
23, mounting plate 24, fan blade 25, thermal energy motor 26, stainless steel Air Filter 27 and cement placing box 28, described send heat pipe 21 grafting
Upper right side inside cement placing box 28；22 bolt of fan shroud is mounted on the middle upside sent inside heat pipe 21；It is described
The inside for being successively provided with mounting plate 24 from left to right into hot hole 23；24 bolt of mounting plate, which is mounted on, to be sent in heat pipe 21
The upside in portion；The fan blade 25 is separately mounted to the outside of thermal energy motor 26；26 bolt of thermal energy motor is mounted on wind
Upside inside hood 22；27 bolt of stainless steel Air Filter is mounted on the downside sent inside heat pipe 21.
In above-described embodiment, specifically, the box structure 3 that stores includes water tank 31, outlet pipe 32, active carbon filtering
Layer 33, screen pipe 34, quartz sand filtration layer 35 and fire blanket 36, the outlet pipe 32 are plugged in 31 upper inside of water tank
Between position；The activated carbon filter layer 33 is placed on the upside inside screen pipe 34；The screen pipe 34 is glued to water outlet
Downside inside pipe 32；The quartz sand filtration layer 35 is placed on the middle downside inside screen pipe 34；The active carbon mistake
Filtering layer 33 is set as being vertically connected with quartz sand filtration layer 35；The fire blanket 36 is glued to the outside of water tank 31.
In above-described embodiment, specifically, the thermal-arrest ring structure 4 that protects includes ceramic fibre ring 41, stainless steel ring
42, snakelike collection hot-water line 43, color steel loop 44, heat-preservation cotton 45, apopore 46 and inlet opening 47,42 bolt of stainless steel ring are pacified
Mounted in the outside of heat-preservation cotton 45；Bolt is mounted on the outside of stainless steel ring 42 to the snakelike collection hot-water line 43 respectively；Described
Color 44 bolt of steel loop is mounted on the outside of snakelike collection hot-water line 43；45 bolt of heat-preservation cotton is mounted on the interior of stainless steel ring 42
Side；The apopore 46 is provided with the lower right side of snakelike collection hot-water line 43；The inlet opening 47 is provided with snakelike collection hot water
The lower left side of pipe 43.
In above-described embodiment, specifically, described send the upper end of heat pipe 21 and the outer lower portion of kiln body 1 to be bolted.
In above-described embodiment, specifically, the left upper end of the outlet pipe 32 is plugged on the outside of apopore 46.
In above-described embodiment, specifically, the inner wall of the ceramic fibre ring 41 and the outer wall of kiln body 1 are bolted.
In above-described embodiment, specifically, the upper end of 7 inner wall of water inlet pipe is socketed in the outside of inlet opening 47.
In above-described embodiment, specifically, the left front portion of 5 inside of inverted U support frame is arranged in the cement placing box 28.
In above-described embodiment, specifically, the upside of the upside of 44 outer wall of color steel loop and 5 inner wall of inverted U support frame
It is bolted.
In above-described embodiment, specifically, the thermal energy motor 26 specifically uses model yl90l-4 constant speed motor.
In above-described embodiment, specifically, the snakelike collection hot-water line 43 uses diameter for five centimetres to eight centimetres
316L stainless steel tube.
Working principle
In the utility model, the aqueduct of connection tap is plugged into first the lower end of water inlet pipe 7, opening tap will
Cold fluid is entered in snakelike collection hot-water line 43 by water inlet pipe 7, is added by the waste heat of kiln body 1 to snakelike collection hot-water line 43
Heat after heating, is flowed into water tank 31 by outlet pipe 32, water tank 31 is connect with electric heater, after to heating
Aqueous carry out using the aqueduct for being plugged into water inlet pipe 7 and connecting tap is removed, cement is secondly put into cement placing box
In 28, the power supply for opening thermal energy motor 26 rotates fan blade 25, the waste heat of kiln body 1 is blown into cement placing box 28, to cement
It is thermally decomposed in advance, after, the power supply of thermal energy motor 26 is closed, cement is shoveled out out of cement placing box 28, if this is remaining
Heat recovery apparatus has the position of damage, and sending 21 bolt of heat pipe to unscrew disassembly, cement placing box 28 is moved to inverted U support frame
5 outside removes block 12, holds handle 11 and pulls forward, moves forward pulley 13 in sliding rail 14, repair damage
Bad or replacement damage position, after the completion of maintenance, holds handle 11 and promotes backward, move backward pulley 13 in sliding rail 14,
Block 12 is plugged on sliding rail 14, the inside of the mobile inverted U support frame 5 of cement placing box 28, sending 21 bolt of heat pipe peace
Mounted in the lower part of kiln body 1.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (9)
1. a kind of cement rotary kiln waste-heat recovery device of multiple-protection, which is characterized in that the cement of the multiple-protection turns round
Kiln waste-heat recovery device, including kiln body (1), heat recovery draught fan structure (2) can store box structure (3), can protect thermal-arrest ring
Structure (4), inverted U support frame (5), thermal insulation paint (6), water inlet pipe (7), check-valves (8), fixed plate (9), check valve (10),
Hand (11), block (12), pulley (13), sliding rail (14) and filter screen (15), heat recovery draught fan structure (2) the bolt peace
The downside external mounted in kiln body (1)；The box structure (3) that stores is plugged on the lower right side that can protect thermal-arrest ring structure (4)；
The outside for protecting thermal-arrest ring structure (4) bolt to be mounted on kiln body (1)；Inverted U support frame (5) the bolt installation
In the outer upper that can protect thermal-arrest ring structure (4)；The thermal insulation paint (6) is sprayed on the outer of inverted U support frame (5) top
Side；The water inlet pipe (7) is longitudinally plugged on the lower left side that can protect thermal-arrest ring structure (4)；The check-valves (8) is mounted on
The internal middle position of water inlet pipe (7)；Interposition of fixed plate (9) transverse weld on the inside of inverted U support frame (5)
It sets；The check valve (10) is mounted on the lower right side that can protect thermal-arrest ring structure (4)；Handle (11) the longitudinal bolt peace
Middle and lower part on front side of inverted U support frame (5)；The block (12) is arranged in the front and rear sides of pulley (13), and respectively
It is plugged on the internal front and rear sides of sliding rail (14)；Described pulley (13) axis connects the four corners in inverted U support frame (5) lower end,
And slide the inside for being connected to sliding rail (14)；The filter screen (15) is glued to the internal downside of water inlet pipe (7)；Described is remaining
Recuperation fan structure (2) includes sending heat pipe (21), fan shroud (22), into hot hole (23), mounting plate (24), fan blade (25), heat
Energy motor (26), stainless steel Air Filter (27) and cement placing box (28), described send heat pipe (21) to be plugged on cement placing box
(28) internal upper right side；Described fan shroud (22) bolt is mounted on the middle upside for sending heat pipe (21) internal；It is described into heat
Hole (23) is successively provided with the inside of mounting plate (24) from left to right；Described mounting plate (24) bolt, which is mounted on, send heat pipe (21)
Internal upside；The fan blade (25) is separately mounted to the outside of thermal energy motor (26)；Described thermal energy motor (26) bolt
It is mounted on the internal upside of fan shroud (22)；Described stainless steel Air Filter (27) bolt, which is mounted on, to be sent under heat pipe (21) inside
Side.
2. the cement rotary kiln waste-heat recovery device of multiple-protection as described in claim 1, which is characterized in that described can
Storing box structure (3) includes water tank (31), outlet pipe (32), activated carbon filter layer (33), screen pipe (34), quartz sand filtration layer
(35) and fire blanket (36), the outlet pipe (32) are plugged on the middle position of water tank (31) upper inside；The activity
Charcoal filter layer (33) is placed on the internal upside of screen pipe (34)；The screen pipe (34) is glued to outlet pipe (32) inside
Downside；The quartz sand filtration layer (35) is placed on the internal middle downside of screen pipe (34)；The activated carbon filter layer
(33) it is set as being vertically connected with quartz sand filtration layer (35)；The fire blanket (36) is glued to the outside of water tank (31).
3. the cement rotary kiln waste-heat recovery device of multiple-protection as described in claim 1, which is characterized in that described can
Protection thermal-arrest ring structure (4) includes ceramic fibre ring (41), stainless steel ring (42), snakelike collection hot-water line (43), color steel loop (44),
Heat-preservation cotton (45), apopore (46) and inlet opening (47), the stainless steel ring (42) bolt are mounted on the outer of heat-preservation cotton (45)
Side；Bolt is mounted on the outsides of stainless steel ring (42) to the snakelike collection hot-water line (43) respectively；Described color steel loop (44) spiral shell
Bolt is mounted on the outside of snakelike collection hot-water line (43)；Described heat-preservation cotton (45) bolt is mounted on the inside of stainless steel ring (42)；
The apopore (46) is provided with the lower right side of snakelike collection hot-water line (43)；The inlet opening (47) is provided with snakelike thermal-arrest
The lower left side of water pipe (43).
4. the cement rotary kiln waste-heat recovery device of multiple-protection as described in claim 1, which is characterized in that described send
The upper end of heat pipe (21) and the outer lower portion of kiln body (1) are bolted.
5. the cement rotary kiln waste-heat recovery device of multiple-protection as claimed in claim 3, which is characterized in that the pottery
The inner wall of porcelain fibrous ring (41) and the outer wall of kiln body (1) are bolted.
6. the cement rotary kiln waste-heat recovery device of multiple-protection as claimed in claim 3, which is characterized in that it is described into
The upper end of water pipe (7) inner wall is socketed in the outside of inlet opening (47).
7. the cement rotary kiln waste-heat recovery device of multiple-protection as described in claim 1, which is characterized in that the water
The left front portion that mud placing box (28) is arranged on the inside of inverted U support frame (5).
8. the cement rotary kiln waste-heat recovery device of multiple-protection as claimed in claim 3, which is characterized in that the coloured silk
It is bolted on the upside of the upside of steel loop (44) outer wall and inverted U support frame (5) inner wall.
9. the cement rotary kiln waste-heat recovery device of multiple-protection as claimed in claim 3, which is characterized in that the snake
Shape collection hot-water line (43) uses diameter for five centimetres to eight centimetres of 316L stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820961698.7U CN208333138U (en) | 2018-06-21 | 2018-06-21 | A kind of cement rotary kiln waste-heat recovery device of multiple-protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820961698.7U CN208333138U (en) | 2018-06-21 | 2018-06-21 | A kind of cement rotary kiln waste-heat recovery device of multiple-protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208333138U true CN208333138U (en) | 2019-01-04 |
Family
ID=64769367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820961698.7U Active CN208333138U (en) | 2018-06-21 | 2018-06-21 | A kind of cement rotary kiln waste-heat recovery device of multiple-protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208333138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319709A (en) * | 2019-07-15 | 2019-10-11 | 兰溪微云自动化科技有限公司 | A kind of cement rotary kiln apparatus for reusing residual heat |
-
2018
- 2018-06-21 CN CN201820961698.7U patent/CN208333138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319709A (en) * | 2019-07-15 | 2019-10-11 | 兰溪微云自动化科技有限公司 | A kind of cement rotary kiln apparatus for reusing residual heat |
| CN110319709B (en) * | 2019-07-15 | 2020-11-06 | 聊城科创节能设备有限公司 | Waste heat recycling device for rotary cement kiln |
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