CN106863611A - A kind of pre cooling of concrete water-cooled aggregate technique - Google Patents
A kind of pre cooling of concrete water-cooled aggregate technique Download PDFInfo
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- CN106863611A CN106863611A CN201710190437.XA CN201710190437A CN106863611A CN 106863611 A CN106863611 A CN 106863611A CN 201710190437 A CN201710190437 A CN 201710190437A CN 106863611 A CN106863611 A CN 106863611A
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- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
- B28C7/0023—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust by heating or cooling
- B28C7/0038—Cooling, e.g. using ice
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The present invention provides a kind of pre cooling of concrete water-cooled aggregate technique, including refrigeration host computer, drop pattern evaporator, insulation pond, water sprinkler system, coarse aggregate cooling storehouse, dewatering screen, water treatment facilities, preceding buffering chamber of standing, refrigeration host computer produces chilled water for drop pattern evaporator provides low-temperature receiver, the cryogenic freezing water produced is buffered in insulation pond, is then delivered to water sprinkler system and blending station production concrete by water pump；Chilled water need to be delivered to insulation pond after water treatment facilities purification and be circulated utilization, be dehydrated by dewatering screen after coarse aggregate cooling through water sprinkler system supply coarse aggregate cold cut storehouse, the chilled water after spraying cooling, be delivered to buffering chamber before station.The technique can substitute air-cooled technique, and power consumption is few, efficiency high.The fines cold cut storehouse of setting and pre- cold water pipe, it is possible to achieve the precooling to fine aggregate, while chilled water is not directly contacted with fine aggregate, reduce the dehydration of aggregate.
Description
Technical field
The present invention relates to concrete production field, particularly a kind of pre cooling of concrete water-cooled aggregate technique.
Background technology
Existing pre cooling of concrete uses air-cooled technique mostly, and conventional is second wind cooling technique.For conventional concrete
Precooling second wind cooling aggregate technique, because refrigeration host computer evaporating temperature is low, first cooling by wind needs -15 DEG C of evaporating temperature, Secondary Air
It is cold to need -25 DEG C of evaporating temperature, so second wind cooling aggregate cooling technique refrigeration host computer capacity is big, refrigeration compressor motor input
Power is big, big with power consumption so as to cause cost of investment high；Traditional pre cooling of concrete second wind cooling aggregate technique, it is necessary to using
Primary and secondary two sets of aggregate cooling silos, so as to increased floor space and cost of investment；Because cold wind is close in cooling storehouse
Envelope is to pile up sealing by aggregate, and aggregate gap in itself is big, therefore cold wind leakage is serious, causes loss of refrigeration capacity serious, according to setting
Meter standard cold is calculated and must be multiplied by 1.8 times；Conventional concrete precooling second wind cooling aggregate technique, because cold wind needs to penetrate entirely
Aggregate layer, therefore the power of air blower is big, usual every cold wind acc power is in 37kw to 90kw；Dust simultaneously in aggregate is cold
In the peripherad air of wind, environmental pollution is serious.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of pre cooling of concrete water-cooled aggregate technique, can substitute air-cooled
Technique, can simultaneously realize the precooling of coarse aggregate and fine aggregate.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of pre cooling of concrete water-cooled aggregate work
Skill, including refrigeration host computer, drop pattern evaporator, insulation pond, water sprinkler system, coarse aggregate cooling storehouse, dewatering screen, water process dress
Put, stand before buffering chamber, refrigeration host computer produces chilled water for drop pattern evaporator provides low-temperature receiver, and the cryogenic freezing water produced is buffered in
In insulation pond, water sprinkler system and blending station production concrete are then delivered to by water pump；Chilled water is thick through water sprinkler system supply
Aggregate cold cut storehouse, the chilled water after spraying cooling need to be delivered to insulation pond after water treatment facilities purification and be circulated profit
With, it is dehydrated by dewatering screen after coarse aggregate cooling, it is delivered to buffering chamber before station.
In preferred scheme, including fine aggregate cold cut storehouse, the fine aggregate cold cut storehouse includes pre- cold water pipe, is incubated pond
Chilled water is delivered to pre- cold water pipe and flows back to insulation pond again, and the fine aggregate after precooling is delivered to buffering chamber before station.
In preferred scheme, buffering chamber outer wrap heat-insulating coil pipe before the station, the water in thermal insulation pool is delivered to through water pump
Heat-insulating coil pipe, the water in heat-insulating coil pipe flows back to thermal insulation pool again.
In preferred scheme, the drop pattern evaporator is into refrigerant is in the inside of heat exchanger plates by multiple plate packages
Flow passage.
A kind of pre cooling of concrete water-cooled aggregate technique that the present invention is provided, by using process above, refrigeration host computer evaporation
Temperature is only -3 DEG C, and refrigeration installed capacity reduces 50%；Cooling medium is conveyed using water pump simultaneously, and its power is not as good as air blower
Power 10%, therefore the power consumption of whole system is only the 25% of conventional concrete precooling second wind cooling aggregate technique.Due to using
Cooling medium be water, its heat-transfer effect is good, and aggregate temperature fall time reduces the appearance in precooling storehouse less than air-cooled half
Product.And in cooling procedure, the dust of aggregate will not be brought in the air of surrounding, reduce environmental pollution.Preferred side
In case, the fines cold cut storehouse of setting and pre- cold water pipe, it is possible to achieve the precooling to fine aggregate, while chilled water is with fine aggregate not
Directly contact, reduces the dehydration of aggregate.The heat-insulating coil pipe that buffering chamber outside is set, it is ensured that the aggregate in buffering chamber
Temperature stabilization.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is process chart of the invention.
In figure：Refrigeration host computer 1, drop pattern evaporator 2 is incubated pond 3, water sprinkler system 4, coarse aggregate cooling storehouse 5, dehydration
Sieve 6, cesspool 7, water purifying tank 8, water treatment facilities 9, buffering chamber 10 before standing, fine aggregate cold cut storehouse 11, pre- cold water pipe 12.
Specific embodiment
As in Fig. 1, "-S-" is water pipe.
A kind of pre cooling of concrete water-cooled aggregate technique, including refrigeration host computer 1, drop pattern evaporator 2, the spray of insulation pond 3, water
Pouring system 4, coarse aggregate cooling storehouse 5, dewatering screen 6, water treatment facilities 9, preceding buffering chamber 10 of standing, refrigeration host computer 1 provide high-pressure refrigeration
To drop pattern evaporator 2, drop pattern evaporator 2 is into refrigerant flows in the inside of heat exchanger plates by multiple plate packages to agent liquid
Road flows, and high-pressure refrigeration machine liquid throttles into low-temperature low-pressure refrigerant liquid, low temperature by the choke valve in drop pattern evaporator 2
Water after carrying out heat exchange with WATER AS FLOW MEDIUM, is cooled to 0 DEG C to 2 DEG C by refrigeration machine liquid by dropping the inner flow passage of pattern evaporator 2
It is stored in insulation pond 3, refrigerant flashes to gas and returns to refrigeration host computer 1.
Cold water in insulation pond 3 is delivered to water sprinkler system 4, and chilled water is by thick in spray to coarse aggregate cooling storehouse 5
Aggregate surface, after aggregate is lowered the temperature, together by dewatering screen 6, aggregate is delivered to station after being dehydrated through dewatering screen 6 for chilled water and aggregate
Preceding buffering chamber 10 set out in advance to make arrangements for blending station provides concrete production, the cold water after being separated through dewatering screen 6 flows to cesspool through water lines
7, then by water pump by the sewage transport in cesspool 7 to the purified treatment of water treatment facilities 10, the cold water after purification is collected into only
Pond 8, then the cold water after purification is returned to by insulation pond 3 by water pump, cold water down cycles are utilized again.
The chilled water being incubated in pond 3 is delivered in the pre- cold water pipe 12 of fine aggregate cooling storehouse 11 to enter with fine aggregate by water pump
Row heat exchange, cold water temperature is raised after heat exchange, and insulation pond 3 is returned to through water pipe, again utilizes cold water down cycles, and thin bone
Material station is delivered to after the precooling in fine aggregate cooling storehouse 11 before buffering chamber 10 for blending station provides concrete production, in whole aggregate
In precooling process, fine aggregate is not directly contacted with chilled water.
The outer wrap heat-insulating coil pipe of buffering chamber 10 before standing, the water in insulation pond 3 is delivered to heat-insulating coil pipe through water pump, so that
Ensure that the aggregate in the preceding buffering chamber 12 in station will not produce temperature recovery, the water water temperature in heat-insulating coil pipe flows back to insulation water again after rising
Pond 3.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this hair
Technical characteristic in the technical scheme that bright protection domain should be recorded with claim, including the technical scheme of claim record
Equivalents are protection domain.Equivalent i.e. within this range is improved, also within protection scope of the present invention.
Claims (5)
1. a kind of pre cooling of concrete water-cooled aggregate technique, including refrigeration host computer（1）, drop pattern evaporator（2）, insulation pond（3）、
Water sprinkler system（4）, coarse aggregate cooling storehouse（5）, dewatering screen（6）, water treatment facilities（9）, stand before buffering chamber（10）, its feature exists
In：Refrigeration host computer（1）It is drop pattern evaporator（2）Low-temperature receiver is provided and produces chilled water, the cryogenic freezing water produced is buffered in insulation
Pond（3）It is interior, water sprinkler system is then delivered to by water pump（4）Concrete is produced with blending station；Chilled water is through water sprinkler system（4）For
Give coarse aggregate cooling storehouse（5）, the chilled water after spraying cooling need to be by water treatment facilities（9）Insulation pond is delivered to after purification
（3）Utilization is circulated, is dehydrated by dewatering screen after coarse aggregate cooling, be delivered to buffering chamber before station（10）.
2. a kind of pre cooling of concrete water-cooled aggregate technique according to claim 1, it is characterised in that：Including fine aggregate cold cut
Storehouse（11）, the fine aggregate cold cut storehouse（11）Including pre- cold water pipe（12）, it is incubated pond（3）Chilled water be delivered to pre- cold water pipe
（12）Insulation pond is flowed back to again（3）, the fine aggregate after precooling be delivered to station before buffering chamber（10）.
3. a kind of pre cooling of concrete water-cooled aggregate technique according to claim 1, it is characterised in that：Including cesspool（7）
And water purifying tank（8）, the chilled water after spraying cooling is delivered to cesspool（7）, by water treatment facilities（9）It is delivered to after treatment net
Pond（8）, water purifying tank（8）Current return insulation pond（3）Recycle.
4. a kind of pre cooling of concrete water-cooled aggregate technique according to claim 1, it is characterised in that：Buffering chamber before the station
（10）Outer wrap heat-insulating coil pipe, is incubated pond（3）In water be delivered to heat-insulating coil pipe through water pump, the water in heat-insulating coil pipe flows again
Go back to insulation pond（3）.
5. a kind of pre cooling of concrete water-cooled aggregate technique according to claim 1, it is characterised in that：The drop pattern evaporation
Device（2）It is into refrigerant flows in the inner flow passage of heat exchanger plates by multiple plate packages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190437.XA CN106863611A (en) | 2017-03-28 | 2017-03-28 | A kind of pre cooling of concrete water-cooled aggregate technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190437.XA CN106863611A (en) | 2017-03-28 | 2017-03-28 | A kind of pre cooling of concrete water-cooled aggregate technique |
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| Publication Number | Publication Date |
|---|---|
| CN106863611A true CN106863611A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710190437.XA Pending CN106863611A (en) | 2017-03-28 | 2017-03-28 | A kind of pre cooling of concrete water-cooled aggregate technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805749A (en) * | 2020-07-21 | 2020-10-23 | 宁夏威尔信商品混凝土有限公司 | Precooling device for producing fine aggregate in concrete production |
| CN114474402A (en) * | 2021-12-30 | 2022-05-13 | 明阳智慧能源集团股份公司 | 130 MPa-150 MPa-level ultrahigh-strength cement-based composite material production line and process |
| CN115493325A (en) * | 2022-10-19 | 2022-12-20 | 四川大渡河双江口水电开发有限公司 | Secondary screening water-cooled aggregate control system, control method and application |
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| US2519148A (en) * | 1948-01-19 | 1950-08-15 | Royal M Mcshea | Apparatus for altering the temperature of granular material |
| CN1062690A (en) * | 1990-12-27 | 1992-07-15 | 株式会社牛尾 | Apparatus for making coolable concrete |
| DE20209574U1 (en) * | 2002-06-20 | 2002-10-17 | Schuering Mirko | Arrangement for the production of fresh concrete |
| CN1817602A (en) * | 2006-03-14 | 2006-08-16 | 国电机械设计研究院 | Concrete aggregate cooling tank and operation thereof |
| CN102390084A (en) * | 2011-11-09 | 2012-03-28 | 中联重科股份有限公司 | Dry-mixed mortar device |
| CN105171920A (en) * | 2015-06-11 | 2015-12-23 | 长江勘测规划设计研究有限责任公司 | Concrete production fine aggregate special-purpose cooling system and cooling method thereof |
-
2017
- 2017-03-28 CN CN201710190437.XA patent/CN106863611A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2519148A (en) * | 1948-01-19 | 1950-08-15 | Royal M Mcshea | Apparatus for altering the temperature of granular material |
| CN1062690A (en) * | 1990-12-27 | 1992-07-15 | 株式会社牛尾 | Apparatus for making coolable concrete |
| DE20209574U1 (en) * | 2002-06-20 | 2002-10-17 | Schuering Mirko | Arrangement for the production of fresh concrete |
| CN1817602A (en) * | 2006-03-14 | 2006-08-16 | 国电机械设计研究院 | Concrete aggregate cooling tank and operation thereof |
| CN102390084A (en) * | 2011-11-09 | 2012-03-28 | 中联重科股份有限公司 | Dry-mixed mortar device |
| CN105171920A (en) * | 2015-06-11 | 2015-12-23 | 长江勘测规划设计研究有限责任公司 | Concrete production fine aggregate special-purpose cooling system and cooling method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805749A (en) * | 2020-07-21 | 2020-10-23 | 宁夏威尔信商品混凝土有限公司 | Precooling device for producing fine aggregate in concrete production |
| CN114474402A (en) * | 2021-12-30 | 2022-05-13 | 明阳智慧能源集团股份公司 | 130 MPa-150 MPa-level ultrahigh-strength cement-based composite material production line and process |
| CN114474402B (en) * | 2021-12-30 | 2024-03-26 | 明阳智慧能源集团股份公司 | 130 MPa-150 MPa-level ultrahigh-strength cement-based composite material production line and process |
| CN115493325A (en) * | 2022-10-19 | 2022-12-20 | 四川大渡河双江口水电开发有限公司 | Secondary screening water-cooled aggregate control system, control method and application |
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Application publication date: 20170620 |