CN203657495U

CN203657495U - Novel annular cooler device for pellet production line

Info

Publication number: CN203657495U
Application number: CN201420000772.0U
Authority: CN
Inventors: 屈保红
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-02
Filing date: 2014-01-02
Publication date: 2014-06-18
Anticipated expiration: 2024-01-02

Abstract

The utility model discloses a novel annular cooler device for a pellet production line. The novel annular cooler device comprises a material-receiving area, a cooling area and a discharging area. The cooling area comprises an annular I segment, an annular II segment, an annular III segment and an annular IV segment. A sealing top cover is arranged above the cooling area. Air boxes are uniformly arranged below the cooling area. Hot air outlets are respectively arranged at the sealing top cover of the annular I segment, the annular II segment, the annular III segment and the annular IV segment. Wind-break walls are respectively arranged between two segments among the annular I segment, the annular II segment, the annular III segment and the annular IV segment. The annular I segment is connected with the material-receiving area. The annular IV segment is connected with a discharging area. The novel annular cooler device for the pellet production line has following beneficial effects: a scientific improvement is made on a presently-used annular cooler; recovery and utilization of heat are further carried out; and therefore energy is saved and waste of resources is reduced.

Description

A kind of Novel pellet production line central cooler equipment

Technical field

The utility model relates to the central cooler equipment of the grate-kiln production line of producing pellet, is specially a kind of Novel pellet production line central cooler equipment.

Background technology

The operation principle of current pelletizing grate-kiln production line central cooler equipment is, high temperature pellet from rotary kiln out, enter on the chassis of feed hopper continuous uniform ground cloth at slewing frame through gravity flow screen, slewing frame passes through chain drive by the sprocket wheel of drive unit, on supporting roller channel, make horizontal circular motion, simultaneously air blast is sent cold air into the bellows below chassis, cold air is under the effect of normal pressure, enter the hot-bulb nodulizing bed of material and carry out with it heat exchange by chassis base plate gap, then hot blast is delivered to rotary kiln and drying grate or smoke stack emission by the cold cover of ring of bed of material end face through backheat pipeline and is gone out, high temperature pellet is able to cooling.In the time that chassis returns back to discharge zone, high temperature pellet is also cooled to design temperature simultaneously.

Current pelletizing grate-kiln production line central cooler equipment mainly divides three process sections: ring I, ring II, ring II I, carry out cooling to roasting 1000 ℃ above pellets, ring I section hot blast is sent into recycling in rotary kiln, it is dry that ring II section hot blast enters chain grate machine by connecting pipe, II section is dry to green-ball, and ring I II section hot blast is emptying.Due to the requirement of Processes and apparatus, ring I, ring II section recovery utilization rate less than 50%, and remaining more than 50% heat energy enters in the air, cause great waste, if reclaimed from ring III, because ring II I section faces blanking, send into cold blast rate larger, the hot blast temperature of whole ring III section is only 150 ℃ of left and right, recycles comparatively difficulty.

Utility model content

In order to overcome above-mentioned technological deficiency, the utility model provides a kind of Novel pellet production line central cooler equipment, can further carry out waste heat recovery.

The utility model solves the technical scheme that its technical problem adopts, a kind of Novel pellet production line central cooler equipment, comprise material receiving area, cooling zone and discharge zone, described cooling zone comprises ring I section, ring II section, ring I II section and ring IV section, top, described cooling zone is provided with sealing overhead guard, below is evenly provided with bellows, on the sealing overhead guard of described ring I section, ring II section, ring III section and ring IV section, be respectively equipped with a hot-blast outlet, in described ring I section, ring II section, ring I II section and ring IV section, between adjacent two sections, be respectively equipped with windbreak; Described ring I section is connected with material receiving area, and described ring IV section is connected with discharge zone;

Described ring II I section is UTILIZATION OF VESIDUAL HEAT IN district, and below, described UTILIZATION OF VESIDUAL HEAT IN district is provided with two bellows, and the air inlet of described bellows is provided with control valve.

The beneficial effect that the utility model produces is: the utility model carries out science improvement on existing central cooler basis, and heat is further recycled, and has effectively saved the energy, has reduced the waste of resource.

Accompanying drawing explanation

As shown be structural representation of the present utility model;

In figure, 1, material receiving area 2, ring I section 3, ring II section 4, ring III section 5, ring IV section 6, discharge zone 7, hot-blast outlet 8, windbreak.

The specific embodiment

Below in conjunction with accompanying drawing and example, the utility model is further illustrated:

As shown in the figure, a kind of Novel pellet production line central cooler equipment, comprise material receiving area 1, cooling zone and discharge zone 6, described cooling zone comprises ring I section 2, ring II section 3, ring I II section 4 and ring IV section 5, top, described cooling zone is provided with sealing overhead guard, below is evenly provided with bellows, on the sealing overhead guard of described ring I section 2, ring II section 3, ring II I section 4 and ring IV section 5, be respectively equipped with a hot-blast outlet 7, described ring between two sections adjacent in I section 2, ring II section 3, ring III section 4 and ring IV section 5 is respectively equipped with windbreak 8; Described ring I section 2 is connected with material receiving area 1, and described ring IV section 5 is connected with discharge zone 6;

Described ring III section 4 is UTILIZATION OF VESIDUAL HEAT IN district, and below, described UTILIZATION OF VESIDUAL HEAT IN district is provided with two bellows, and the air inlet of described bellows is provided with control valve.

The utility model by existing central cooler three process sections change four process sections into, first bellows of last bellows region of ring II section 3 and ring II I section 4 are isolated with windbreak 8 as a new technology section, above this region, seal again overhead guard and open hot-blast outlet 7 connecting pipes, carry out waste heat recovery.After transformation, ring I section 2 is constant, and ring II section 3 continues to chain grate machine heat air delivery, and ring III section 4 is UTILIZATION OF VESIDUAL HEAT IN district, and ring IV section 5 is emptying by chimney.

For existing central cooler, ring 950 ℃ of left and right of I section, ring II section 750-900 ℃, first bellows region material layer temperature of ring III section is between 400-700 ℃, add the temperature of last bellows of ring II, waste heat recovery district just can collect the hot blast of 300-500 ℃, and available waste heat boiler produces steam and generates electricity.

The utility model encircles II I Duan HehuanⅣ district for the ease of operation waste heat recovery district and shares ring III section blower fan, be circulating fan ring II section fan improvement, the warm wind of having a surplus after processing is sent into ring II section, through chain grate machine transfer heat in the bed of material, accomplish that heat energy makes full use of.In waste heat recovery district, two bellows air inlets add control valve, are convenient to control temperature.

Concrete repacking mode of the present utility model is, windbreak between existing ring II section and ring III section is removed, ring II last bellows of section and first bellows of ring III section are separated by two windbreaks and all the other two sections, above the sealing overhead guard of these two sections, open a hot-blast outlet, connecting pipe is carried out waste heat recovery.

The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection domain of the present utility model.

Technology, shape, structure part that the utility model is not described in detail are known technology.

Claims

1. a Novel pellet production line central cooler equipment, comprise material receiving area, cooling zone and discharge zone, it is characterized in that, described cooling zone comprises ring I section, ring II section, ring III section and ring IV section, top, described cooling zone is provided with sealing overhead guard, below is evenly provided with bellows, on the sealing overhead guard of described ring I section, ring II section, ring III section and ring IV section, be respectively equipped with a hot-blast outlet, in described ring I section, ring II section, ring III section and ring IV section, between adjacent two sections, be respectively equipped with windbreak; Described ring I section is connected with material receiving area, and described ring IV section is connected with discharge zone.

2. Novel pellet production line central cooler equipment as claimed in claim 1, is characterized in that, described HuanⅢDuan Wei UTILIZATION OF VESIDUAL HEAT IN district, and below, described UTILIZATION OF VESIDUAL HEAT IN district is provided with two bellows, and the air inlet of described bellows is provided with control valve.