CN106881763A - A kind of fine aggregate precooling preheating device - Google Patents
A kind of fine aggregate precooling preheating device Download PDFInfo
- Publication number
- CN106881763A CN106881763A CN201710190429.5A CN201710190429A CN106881763A CN 106881763 A CN106881763 A CN 106881763A CN 201710190429 A CN201710190429 A CN 201710190429A CN 106881763 A CN106881763 A CN 106881763A
- Authority
- CN
- China
- Prior art keywords
- precooling
- fine aggregate
- heat exchanger
- warehouse
- exchanger plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B28C7/003—Heating, e.g. using steam
-
- 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
Landscapes
- 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 fine aggregate precooling preheating device, including refrigeration host computer, heat exchanger, insulation pond and heater and precooling pre-heating cabin, the precooling pre-heating cabin includes warehouse and the multiple heat exchanger plates being arranged on inside warehouse, the heat exchanger plates inside sets heat transferring medium runner, heat exchanger plates are provided with tunnel inlets and runner exit, and insulation pond passes through water pump and the import of water pipe connecting passage and runner exit.Precooling or preheating to fine aggregate can be realized and the moisture content of aggregate will not be changed.Preferred scheme, the closing device of setting, in that context it may be convenient to open warehouse facilitates being placed and taken out for fine aggregate, easy to operate.
Description
Technical field
Production field is mixed and stirred the present invention relates to concrete, particularly a kind of fine aggregate precooling preheating device.
Background technology
It is to meet the normal construction under low temperature and summer high temperature execution conditions in the winter time in engineering construction field, it is necessary to take
Technological measure carries out precooling or preheating to aggregate.Particle diameter is referred to as fine aggregate in the aggregate of 4.75 below mm, to fine aggregate
Preheating device mainly heated using setting steam comb in batching plant expects pipe, adopt heating efficiency in this way compared with
It is low；And because the particle diameter of fine aggregate is smaller, space is also smaller, air-cooled using tradition, air is difficult to penetrate accumulation sand, traditional water
Cold aggregate cold cut, the dehydration in later stage is difficult to realize again, it is impossible to realize requirement of the concrete production to water-containing rate, causes it is difficult to right
Fine aggregate precooling.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of fine aggregate precooling preheating device, it is possible to achieve to fine aggregate
Precooling or preheating.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of fine aggregate precooling preheating device, bag
Refrigeration host computer, heat exchanger, insulation pond and heater and precooling pre-heating cabin are included, the precooling pre-heating cabin includes warehouse and setting
Multiple heat exchanger plates inside warehouse, heat exchanger plates inside sets heat transferring medium runner, heat exchanger plates be provided with tunnel inlets and
Runner exit, insulation pond passes through water pump and the import of water pipe connecting passage and runner exit.
In preferred scheme, precooling pre-heating cabin top or/and bottom are provided with the closing device for opening or closing warehouse.
Further, the closing device includes the power transmission shaft of the rotating shaft connection of motor and motor, multiple power output shafts
And blade, gear and blade, the wheel and rack engagement are provided with the power transmission shaft and power output shaft.
Further, the gear teeth of the tooth bar are Disjunct distribution, and the distribution length of the tooth bar gear teeth can make power output shaft
Rotate half-turn.
In preferred scheme, the precooling pre-heating cabin outer surface is provided with heat-insulation layer.
In preferred scheme, the vertical parallel equidistant distribution of heat exchanger plates.
A kind of fine aggregate precooling preheating device that the present invention is provided, it is possible to achieve precooling or preheating to fine aggregate and not
The moisture content of aggregate can be changed.The cooling medium cooled down as aggregate using cold water, relative to traditional air-cooling aggregate and on the rocks
Cooling, the evaporating temperature of refrigeration system main frame has brought up to -3 DEG C, the COP values of refrigeration system has been improve, so as to reduce from -25 DEG C
The installed capacity of refrigeration system and operation power consumption；Preferred scheme, the closing device of setting, in that context it may be convenient to open storehouse
Body, facilitates being placed and taken out for fine aggregate, easy to operate.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the front view of precooling pre-heating cabin.
Fig. 3 is the left view of precooling pre-heating cabin.
In figure：Refrigeration host computer 1, heat exchanger 2, insulation pond 3, heater 4, precooling pre-heating cabin 5, motor 51, power transmission shaft 52,
Power output shaft 53, blade 54, gear 55, tooth bar 56, warehouse 57, heat exchanger plates 58.
Specific embodiment
As in Fig. 1 ~ 3, a kind of fine aggregate precooling preheating device, including refrigeration host computer 1, heat exchanger 2, insulation pond 3 and add
Hot device 4 and including precooling pre-heating cabin 5, precooling pre-heating cabin 5 includes warehouse 57 and the multiple heat exchanger plates being arranged on inside warehouse 57
58, the inside of heat exchanger plates 58 sets heat transferring medium runner, is provided with tunnel inlets and runner exit, insulation pond 3 by water pump with
And the import of water pipe connecting passage and runner exit.The vertical parallel equidistant of heat exchanger plates 58 is distributed, and is formed between each two heat exchanger plates 58
One storage element, the storage element is used for depositing fine aggregate.The outer surface of precooling pre-heating cabin 5 is provided with heat-insulation layer 6, can be effective
Prevent precooling or preheating fine aggregate with the external world heat exchange.
Specific embodiment is：When precooling fine aggregate is needed, refrigeration host computer 1 is opened, refrigeration host computer 1 provides compacting high
To heat exchanger 2, refrigerant flows cryogen liquid in the inner flow passage of heat exchanger 2, after carrying out heat exchange with WATER AS FLOW MEDIUM, water is lowered the temperature
It is stored in insulation pond 3 to 0 DEG C to 2 DEG C, refrigerant flashes to gas and returns to refrigeration host computer 1, the chilled water in insulation pond 3
Tunnel inlets are flowed into by water pump, then insulation pond 3 is flowed back to by runner exit.Fine aggregate, fine aggregate storage are added in toward storehouse
In the storage element that heat exchanger plates 58 are formed, fine aggregate and the chilled water in heat exchanger plates 58 of storage element carry out heat exchange, cold
Freeze water in the internal circulation flow of heat exchanger plates 58, when fine aggregate temperature reaches setting value, open warehouse 57, by the aggregate row after cooling
Go out, be delivered to blending station, drain in storehouse after aggregate, close warehouse 57, while new aggregate is added toward warehouse 57, into next storehouse
Aggregate cooling, such iterative cycles.
When preheating aggregate is needed, heater is opened, the water in insulation pond 3 is heated, the water storage after heating
In insulation pond 3.Fine aggregate is added in toward storehouse, fine aggregate is stored in the storage element of the formation of heat exchanger plates 58, storage element
Fine aggregate and heat exchanger plates 58 in hot water carry out heat exchange, hot water in the internal circulation flow of heat exchanger plates 58, when fine aggregate temperature reaches
During to setting value, warehouse 57 is opened, by the aggregate discharge after preheating, be delivered to blending station, drained in storehouse after aggregate, close warehouse
57, while adding new aggregate toward warehouse 57, the aggregate into next storehouse is heated, such iterative cycles.
In preferred scheme, the top and bottom of precooling pre-heating cabin 5 are provided with the closing device for opening or closing warehouse, including
The power transmission shaft 52 of the rotating shaft connection of motor 51 and motor, multiple power output shaft 53 and blade 54, the power transmission shaft 52 and dynamic
Gear 55 and blade 54 are provided with power output shaft 53, the gear 55 is engaged with tooth bar 56, the gear teeth of tooth bar 56 are interruption point
Cloth, the distribution length of the gear teeth of tooth bar 56 can make power output shaft 53 rotate half-turn.
When needing precooling or preheating fine aggregate, the motor 51 of the closing device 5 at the top of precooling pre-heating cabin 5, motor drives and passes
Moving axis 52 is rotated, and under the transmission of gear 55 and tooth bar 56, power output shaft 53 starts to rotate, and motor transmission shaft 52 and power are defeated
Shaft 53 drives blade 54 to rotate half-turn, and when now blade 54 is in vertical direction, power output shaft 53 stops operating, warehouse 57
Top is opened, and toward addition aggregate in storehouse, after the completion of addition, startup motor 51 is inverted, motor transmission shaft 52 and power output shaft 53
Drive blade 54 to rotate backward half-turn, when now blade 54 is horizontally oriented, close motor.Likewise, when thin in warehouse 1
After the completion of precooling of aggregates or preheating, realized in warehouse 57 by the opening and closing of the closing device of the bottom of precooling pre-heating cabin 5
The discharge of fine aggregate.
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 (6)
1. a kind of fine aggregate precooling preheating device, including refrigeration host computer（1）, heat exchanger（2）, insulation pond（3）And heater
（4）, it is characterised in that：Including precooling pre-heating cabin（5）, the precooling pre-heating cabin（5）Including warehouse（57）Be arranged on warehouse
（57）Internal multiple heat exchanger plates（58）, the heat exchanger plates（58）Inside sets heat transferring medium runner, heat exchanger plates（58）It is provided with
Tunnel inlets and runner exit, are incubated pond（3）By water pump and the import of water pipe connecting passage and runner exit.
2. a kind of fine aggregate precooling preheating device according to claim 1, it is characterised in that：The precooling pre-heating cabin（5）
Top or/and warehouse（57）Bottom is provided with and opens or closes warehouse（57）Closing device.
3. a kind of fine aggregate precooling preheating device according to claim 2, it is characterised in that：The closing device includes electricity
Machine（51）The power transmission shaft that rotating shaft with motor is connected（52）, multiple power output shafts（53）And blade（54）, the power transmission shaft
（52）And power output shaft（53）On be provided with gear（55）And blade（54）, the gear（55）With tooth bar（56）Engagement.
4. a kind of fine aggregate precooling preheating device according to claim 3, it is characterised in that：The tooth bar（56）The gear teeth
It is Disjunct distribution, tooth bar（56）The distribution length of the gear teeth can make power output shaft（53）Rotate half-turn.
5. a kind of fine aggregate precooling preheating device according to claim 1, it is characterised in that：The precooling pre-heating cabin（5）
Outer surface is provided with heat-insulation layer.
6. a kind of fine aggregate precooling preheating device according to claim 1, it is characterised in that：The heat exchanger plates（58）Vertically
Parallel equidistant is distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190429.5A CN106881763A (en) | 2017-03-28 | 2017-03-28 | A kind of fine aggregate precooling preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190429.5A CN106881763A (en) | 2017-03-28 | 2017-03-28 | A kind of fine aggregate precooling preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106881763A true CN106881763A (en) | 2017-06-23 |
Family
ID=59181090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710190429.5A Pending CN106881763A (en) | 2017-03-28 | 2017-03-28 | A kind of fine aggregate precooling preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106881763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618113A (en) * | 2017-10-19 | 2018-01-23 | 中国水利水电第八工程局有限公司 | A kind of pre cooling of concrete and preheating integrated apparatus |
| CN112611248A (en) * | 2020-12-10 | 2021-04-06 | 中国葛洲坝集团第一工程有限公司 | Aggregate heat exchange system and heat exchange method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491194A (en) * | 1948-01-19 | 1949-12-13 | Royal M Mcshea | Process for altering the temperature of aggregates |
| US2519148A (en) * | 1948-01-19 | 1950-08-15 | Royal M Mcshea | Apparatus for altering the temperature of granular material |
| US5167274A (en) * | 1988-08-26 | 1992-12-01 | Cominco Ltd. | Method and apparatus for cooling particulate solids |
| DE102005031660A1 (en) * | 2005-07-05 | 2007-01-11 | Coperion Waeschle Gmbh & Co. Kg | Apparatus for heating or cooling bulk material comprises a tube and shell heat exchanger and a system for reheating or recooling a heat transfer liquid supplied to the shell side |
| CN103552155A (en) * | 2013-10-30 | 2014-02-05 | 中国神华能源股份有限公司 | Aggregate thermal insulation system and stirring method of concrete |
| CN205724528U (en) * | 2016-04-21 | 2016-11-23 | 国家电网公司 | The special vent window of box-type substation |
-
2017
- 2017-03-28 CN CN201710190429.5A patent/CN106881763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491194A (en) * | 1948-01-19 | 1949-12-13 | Royal M Mcshea | Process for altering the temperature of aggregates |
| US2519148A (en) * | 1948-01-19 | 1950-08-15 | Royal M Mcshea | Apparatus for altering the temperature of granular material |
| US5167274A (en) * | 1988-08-26 | 1992-12-01 | Cominco Ltd. | Method and apparatus for cooling particulate solids |
| DE102005031660A1 (en) * | 2005-07-05 | 2007-01-11 | Coperion Waeschle Gmbh & Co. Kg | Apparatus for heating or cooling bulk material comprises a tube and shell heat exchanger and a system for reheating or recooling a heat transfer liquid supplied to the shell side |
| CN103552155A (en) * | 2013-10-30 | 2014-02-05 | 中国神华能源股份有限公司 | Aggregate thermal insulation system and stirring method of concrete |
| CN205724528U (en) * | 2016-04-21 | 2016-11-23 | 国家电网公司 | The special vent window of box-type substation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618113A (en) * | 2017-10-19 | 2018-01-23 | 中国水利水电第八工程局有限公司 | A kind of pre cooling of concrete and preheating integrated apparatus |
| CN112611248A (en) * | 2020-12-10 | 2021-04-06 | 中国葛洲坝集团第一工程有限公司 | Aggregate heat exchange system and heat exchange method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |
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| RJ01 | Rejection of invention patent application after publication |