CN100460786C

CN100460786C - Aggregate air cooler

Info

Publication number: CN100460786C
Application number: CNB2006100498347A
Authority: CN
Inventors: 翁定伯; 陈雄震
Original assignee: HEDA ELECTROMECHANICAL ENGINEERING CO LTD HANGZHOU; GUODIAN MACHINERY DESIGN INST
Current assignee: HEDA ELECTROMECHANICAL ENGINEERING CO LTD HANGZHOU; GUODIAN MACHINERY DESIGN INST
Priority date: 2006-03-14
Filing date: 2006-03-14
Publication date: 2009-02-11
Anticipated expiration: 2026-03-14
Also published as: CN1818520A

Abstract

A aggregate air cooling equipment, that comprises the bin, the air outlet, the air intake and the air vessel, the bin consist of the aggregate bin which the air outlet and the air intake is on it and the sand bin, the air vessel consist of the intake vessel, the return vessel, the intake communicating vessel and the return communicating vessel, the intake vessel and the return vessel are horizontal arrange and the intake communicating vessel and the return communicating vessel are vertical arrange, the return vessel is set between the neighboring intake vessels, the intake vessel connect with the intake communicating vessel. One of the advantages is that the first-degree air cooling can be replaced by the second-degree air cooling in some conditions.

Description

A kind of aggregate air cooler

Technical field

The present invention relates to a kind of aggregate air cooler, it is mainly used in the precooling of dam concrete aggregate.

Background technology

At present, the dam concrete precooling, aggregate is lowered the temperature nearly 30 ℃, extensively adopts secondary air-cooled in the recent period, claims second wind cooling again, need be ad hoc a cover ground cooling infrastructure, used cooling feed bin area is big, the bed of material is thick, the blast height, equipment is many, and occupied ground is big, and operation control is complicated, the energy consumption height.Heavy construction needs the electrical power of number in ten thousand kW, is the large electricity consumer.Yet the remote mountains area development day by day southwest of Chinese large-sized dam, local landform is precipitous, and the level land area is little, builds large-scale cooling feed bin difficulty.

Summary of the invention

Technical problem to be solved by this invention provides a kind of reasonable in design, energy consumption is low, feed bin is little, blast is low, equipment is few, control is simple, the loss of leaking out is low, cooling extent greatly, the air-cooled aggregate air cooler of the air-cooled replacement secondary of available one-level under certain condition.

It is this aggregate air cooler that the present invention solves the problems of the technologies described above the technical scheme that is adopted, by feed bin, air outlet, air inlet and airduct are formed, feed bin is divided into aggregate bin and Sha Cang, its design feature is: air outlet and air inlet are arranged on the aggregate bin, described airduct is a blast pipe, backwind tube, air intake communicating pipe and return air communicating pipe, wherein, blast pipe and backwind tube are transversely arranged, air intake communicating pipe and return air communicating pipe are vertically to arrange, backwind tube is arranged between the adjacent blast pipe, blast pipe was connected with air intake communicating pipe, the lower open of blast pipe and backwind tube, and both sides are the shutter form.

Airduct of the present invention is more than a cover or overlaps.

Air intake communicating pipe of the present invention is arranged in sand storehouse or the aggregate bin.

The present invention compares with prior art and has the following advantages and effect: 1, owing to multilayer turnover wind in the present invention's branch storehouse, be equivalent to the wind area and increased many times, under the situation identical of feed bin cross section, can provide many times cold with saturating material wind speed and other parameters.2, owing to used the shutter airduct, make that in feed bin cold wind can be penetrated in the aggregate equably, and aggregate is fully cooled off.3, because aggregate at different levels continuous feed has simultaneously been kept each storehouse and bought securities with all one's capital, guarantee the stable of material level, thereby kept the stable of cooling operating mode, guaranteed that cooling load is steady, cut down peak load and reduced the concrete temperature fluctuation.4, the loss of leaking out is air-cooled main loss, adopts the present invention, can increase air quantity and to keep blast constant, and the loss of leaking out relatively reduces by 2/3.4, the present invention is under the windage same case, and total stock column height is the several times of tradition cooling, increases ratio of height to diameter and satisfies dark storehouse condition, can keep the aggregate first in first out, guarantees that the aggregate that successively enters all has sufficient cool time in aggregate bin.5, owing to be arranged on air intake communicating pipe in the adjacent sand storehouse, can cool off the material in the sand storehouse.

Description of drawings

Fig. 1 is for being located at the structural representation in the sand storehouse air intake communicating pipe of the present invention.

Fig. 2 is for being located at the structural representation in the aggregate bin air intake communicating pipe of the present invention.

Fig. 3 is the structural representation of blast pipe of the present invention and backwind tube.

The specific embodiment

The present invention is described in further detail below in conjunction with embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.

Embodiment 1:

As shown in Figure 1, present embodiment is made up of feed bin and airduct, every 4 feed bin 1 is separated into the aggregate bin 2 and the sand storehouse 3 of intending cooling by the storehouse, the top of aggregate bin 2 is provided with charging aperture 11 and return air inlet 6, the below of aggregate bin 2 is provided with discharging opening 12 and air inlet 5, airduct 15 is by

blast pipe

7,17, backwind tube 8, air intake communicating pipe 9 and return air communicating pipe 10 are formed, wherein nethermost blast pipe 7 is connected with air inlet 5, air channel between the

blast pipe

7 and 17 was connected by air intake communicating pipe 9, backwind tube 8 is arranged on

adjacent blast pipe

7 and 17, backwind tube 8 was connected with return air inlet 6 through return air communicating pipe 10, and wherein air intake communicating pipe 9 is arranged in the sand storehouse 3.

As shown in Figure 3, the structure of

blast pipe

7,17, backwind tube 8 is identical, is venetian blind type.Is made up of pipe top 14 and shutter sidewall 13, pipe top 14 is the load-bearing steel plate structure, and sidewall 13 be a shutter, direction down, bottom whole process is unlimited.

During work, aggregate is entered from charging aperture 11 continuously, form the basicly stable bed of material 16 of material level,

blast pipe

7,17, backwind tube 8 and communicating pipe 10 are embedded in the bed of material 16.Be blown into cold wind from air inlet 5 and divide two-way, the side shutter and the open bottom of a curb blast pipe 7 are blown into, and upwards see through 7,8 bed of materials, and by backwind tube 8, communicating pipe 10 is to return air inlet 6; Another road enters blast pipe 17 through air intake communicating pipe 9, and the bottom and the shutter sidewall 13 that open wide from blast pipe 17 enter the aggregate.This road enters the cold wind of aggregate, divides two-way to see through the bed of material again, and

blast pipe

17,8 bed of materials of backwind tube are crossed by a Reuter, is compiled by backwind tube 8, is discharged by return air inlet 6 through communicating pipe 10 then, and another part upwards sees through the bed of material and directly discharges to return air inlet 6.Also promptly be equivalent to have three cooling storehouses to cool off simultaneously.Return air enters from air inlet 5 after aerial cooler cools off again, and circulation repeatedly reaches the purpose of cooling off aggregate.Also cool off material in the sand storehouse 3 simultaneously at the cold air of air intake communicating pipe 9.

Embodiment 2:

As shown in Figure 2, present embodiment is made up of feed bin and airduct, every 4 feed bin 1 is separated into the aggregate bin 2 and the sand storehouse 3 of intending cooling by the storehouse, the top of aggregate bin 2 is provided with charging aperture 11 and return air inlet 6, the below of aggregate bin 2 is provided with discharging opening 12 and air inlet 5, airduct 15 is by

blast pipe

adjacent blast pipe

7 and 17, backwind tube 8 was connected with return air inlet 6 through return air communicating pipe 10, and wherein air intake communicating pipe 9 is arranged in the aggregate bin 2.

As shown in Figure 3, the structure of

blast pipe

7,17, backwind tube 8 is identical, is venetian blind type.Is made up of pipe top 14 and shutter sidewall 13, pipe top 14 be a load steel structure, and sidewall 13 is a shutter, direction down, bottom whole process is unlimited.

During work, move towards identical, do not state here tired with the course of work and the wind of embodiment 1.

According to the thickness difference of feed bin 1, a few cover airducts 15 can be set, the air intake of these a few cover airducts 15 and return air can be pooled to a place, are handled by an air-cooler.

According to the width difference of feed bin 1, the blast pipe and the backwind tube of a few cover airducts 15 also can be set, every cover airduct is joined a cover air-cooler.

Claims

1. aggregate air cooler, form by feed bin, air outlet, air inlet and airduct, feed bin is divided into aggregate bin and Sha Cang, it is characterized in that: air outlet and air inlet are arranged on the aggregate bin, described airduct is blast pipe, backwind tube, air intake communicating pipe and return air communicating pipe, wherein, blast pipe and backwind tube are transversely arranged, air intake communicating pipe and return air communicating pipe are vertically to arrange, backwind tube is arranged between the adjacent blast pipe, blast pipe was connected with air intake communicating pipe, the lower open of blast pipe and backwind tube, and both sides are the shutter form.

2. aggregate air cooler according to claim 1 is characterized in that: described airduct is more than the cover.

3. aggregate air cooler according to claim 1 is characterized in that: described air intake communicating pipe is arranged in sand storehouse or the aggregate bin.