CN114184051A

CN114184051A - Supplementary pay-off grate cooler device of multiaspect cooling

Info

Publication number: CN114184051A
Application number: CN202111649345.6A
Authority: CN
Inventors: 关玉明; 王辉; 冯文正; 马孝直; 朱耿武
Original assignee: Tianjin Mingxing Hengneng Science And Technology Development Co ltd; Sinoma Technology Xuzhou Heavy Machine Co ltd; Hebei University of Technology
Current assignee: Tianjin Mingxing Hengneng Science And Technology Development Co ltd; Sinoma Technology Xuzhou Heavy Machine Co ltd; Hebei University of Technology
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-03-15

Abstract

The invention discloses a multi-surface cooling auxiliary feeding grate cooler device, which belongs to the technical field of grate coolers and comprises a plurality of side cooling conveying modules, wherein each side cooling conveying module comprises a cooling box, a roller and a conveying belt; the cooling box comprises an air chamber and a plurality of air outlet chambers communicated with the air chamber, the air outlet chambers are located on one side of the air chamber and are arranged in parallel from top to bottom, a bottom plate of the air outlet chamber inclines downwards, an air outlet is formed in the position, close to the bottom plate of the air outlet chamber, of the side wall of the cooling box, an accommodating chamber for transporting clinker is formed between two adjacent side cooling conveying modules, a bottom surface cooling conveying mechanism is arranged below the accommodating chamber and comprises a grate plate chain and a supporting plate, the supporting plate penetrates through the grate plate chain and is arranged, and the supporting plate is of a hollow structure. The invention has the advantages of simple structure, increased cooling area, improved working efficiency, prolonged service life and wide application.

Description

Supplementary pay-off grate cooler device of multiaspect cooling

Technical Field

The invention belongs to the technical field of grate coolers, and particularly relates to a multi-surface cooling auxiliary feeding grate cooler device.

Background

The grate cooler is an important host machine device in the cement production and manufacturing process, and has the main functions of cooling and transporting cement clinker; the high-temperature cement clinker burned in the rotary kiln with a certain thickness is conveyed to a grate plate of a grate cooler, the moving grate plate drives the cement clinker on the grate plate to synchronously move, a cooling device is arranged below the grate plate, cold air provided by the cooling device upwards penetrates through the grate plate and a material layer to take away the heat of the cement clinker, so that the cement clinker is gradually cooled in the process of moving from the beginning to the end of the grate plate, and the clinker can be cooled to about 100 ℃ from 1300 ℃ and 1400 ℃ within a few minutes.

Most of cooling devices of the prior grate cooler are arranged below clinker, the cooling quality of the clinker is mainly determined by the air receiving area of the clinker, the air flow rate, the clinker thickness and the like, when the clinker enters the grate cooler, a grate plate drives the clinker to move forward, an air blower below the grate plate starts to blow cold air into an air chamber, the effective air receiving area of the clinker is only the lower bottom surface, when the clinker thickness is larger, the resistance to the cold air is larger, the inside of the large clinker cannot be cooled, the cooling speed is lower, the clinker is not cooled in time at high temperature, fine clinker particles are adhered to each other to form blocks, and the cooling efficiency is lower.

The patent application No. 202023127170.6 discloses a side blow cooling device of a grate cooler, which comprises a low wall in the grate cooler, a wind collecting box on the outer surface of the low wall, a side blow nozzle and a manual butterfly valve which are symmetrically and fixedly arranged, and a plurality of wind pipes are combined together to form the side cooling device. The device can increase the wind flow and can reduce the red river effect. However, the device blows air out from a plurality of side-blowing nozzles, which causes uneven wind on the lateral surface of the clinker and smaller air output, so that the large clinker can not be cooled in time, and the efficiency is low.

The document of application No. 202022982595.9 discloses a side air inlet channel device with a dustproof function, which comprises a main box body and a filtering device, an air inlet pipe arranged on the main box body, an air outlet pipe far away from the air inlet pipe, and a suction fan and an air inlet valve arranged on the main box body. The device can effectually filter the air, promotes inlet air channel's result of use. However, the structure of the air inlet channel is not changed by the device, so that the wind energy is effectively utilized, for example, the wind flow, the wind receiving area of clinker and the like are not increased, and the filter device is higher in manufacturing cost and lacks of economy.

In addition, under the influence of the rotation of the rotary kiln, fine materials can be layered in the process of firing the cement clinker, when the fired cement clinker is discharged on the grate bed, the fine materials can be concentrated on one side of the grate bed, and the rest clinker is concentrated to the other side along with the increase of the particle size. The clinker particles will then follow the movement of the grate plate and cover the whole grate bed, and although the particle stratification will change during the movement, the longitudinal change is not great. Due to the fact that fine materials on one side are densely stacked and clinker particles on the other side are large, the side clinker is difficult to convey and cannot be conveyed forwards along with the movement of the grate plate in time, and waste of cement clinker is easily caused.

The document of application number 202023075204.1 discloses a grate cooler crank connecting rod device, which comprises an eccentric crankshaft connected to a driving device, wherein one end of the eccentric crankshaft is connected to a driven shaft, and the connecting part of the eccentric crankshaft, a connecting rod and the driven shaft is provided with a self-aligning roller bearing and a sealing assembly. The device can guarantee the smooth operation of the grate cooler and improve the efficiency. However, the device still does not consider the lateral transportation of the clinker, which is easy to cause the waste of the clinker.

The application number 202011561955.6 discloses a push rod type grate cooler pushing device, which comprises a box body, an L-shaped supporting rod, a cross rod and a rotary column, wherein the L-shaped supporting rod is installed inside the box body, a workbench is installed on the rotary column, a rotary rod is connected with a rotary shaft of a motor output shaft, a shifting rod is installed on a fixed shaft, the shifting rod is connected with a convex rod below the workbench in a clamped mode, a cooling chamber is fixed above the box body, and a U-shaped groove plate is installed on the cross rod. The device can greatly ensure the reaction time in the cooling process, thereby improving the cooling quality. However, this device is not optimized for the transport of the side clinker and is inefficient.

Disclosure of Invention

The invention aims to provide a multi-surface cooling auxiliary feeding grate cooler device which is simple in structure, capable of increasing the cooling area, improving the working efficiency, prolonging the service life and wide in application.

In order to solve the technical problems, the invention adopts the technical scheme that: a multi-surface cooling auxiliary feeding grate cooler device comprises a plurality of side cooling conveying modules, wherein each side cooling conveying module comprises a cooling box, a roller and a conveying belt, the rollers are arranged at two ends of the cooling box, the conveying belts are arranged on the rollers and surround the cooling box, and a plurality of ventilation holes are uniformly formed in the conveying belts; the cooling box includes plenum and a plurality of air-out rooms that are linked together with the plenum, a plurality of air-out rooms are located plenum one side and from top to bottom parallel arrangement, the bottom plate downward sloping of air-out room, the cooling box lateral wall is close to air-out room bottom plate position and is provided with the air outlet, adjacent two form the appearance chamber that transports the grog in the middle of the side cooling conveying module, it is provided with bottom surface cooling conveying mechanism to hold the chamber below, bottom surface cooling conveying mechanism includes comb plate chain and backup pad, the backup pad passes the setting of comb plate chain, and this backup pad is hollow out construction.

Preferably, a plurality of side cooling conveying modules arranged in parallel can form a plurality of cavities, and when the clinker is conveyed, the side cooling conveying modules provide cold air for cooling. In the width direction, a plurality of side cooling conveyor modules may be installed.

Preferably, the side cooling conveying modules on the outer edge are installed on the supporting plate, and the side cooling conveying modules on the inner side are connected with the side cooling conveying modules on the outer edge through connecting ribs.

Preferably, the cross-sectional shape of the air outlet chamber is a parallelogram.

Preferably, the top of the cooling box is provided with two air inlets.

Preferably, the drum is mounted on the bearing mount by a bearing.

Preferably, the grate plate chain is driven by a sprocket.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

(1) the side cooling and conveying modules are additionally arranged on two sides above the grate bed to cool the upper part and the side edges of the clinker, the device can continuously output larger air flow, and the ventilated hollow support plate cools the bottom surface of the clinker, so that three surfaces of the clinker can be simultaneously cooled while auxiliary conveying is realized, the cooling area is increased, the cooling efficiency is improved, and the length of the grate bed can be reduced; the lateral cooling conveying modules are all blown out in the height direction, so that the clinker is cooled in time at high temperature, the phenomenon that fine clinker particles are adhered to each other to form blocks is avoided, and the problem that the interior of large clinker is cooled unevenly is also avoided.

(2) Side cooling conveying modules can be properly added in the length direction and the width direction, so that the containing cavity is increased, and the working efficiency can be effectively improved; therefore, the number of the modules can be increased and reduced properly according to the aspects of space size, working efficiency and the like, and the system can adapt to the space well.

(3) The clinker conveyor changes the original working mode of conveying the clinker on a single surface, the clinker is driven to advance by adopting the rotary motion of the conveyor belt on the side surface, and the clinker is driven to advance from the directions of two sides by virtue of static friction, so that the sliding friction between the conveyor belt and the clinker is reduced, the advancing speed of the clinker is accelerated, the abrasion of the conveyor belt is reduced, the conveying pressure of the grate plate chain is reduced, the working efficiency is improved, and the service life of the conveyor belt is prolonged.

(3) Compared with the existing cooling equipment, the invention has the advantages of simple structure, light weight and greatly reduced occupied space and manufacturing cost.

Drawings

The advantages and realisation of the invention will be more apparent from the following detailed description, given by way of example, with reference to the accompanying drawings, which are given for the purpose of illustration only, and which are not to be construed in any way as limiting the invention, and in which:

FIG. 1 is a schematic structural view of the present invention

FIG. 2 is a front view of the present invention

FIG. 3 is a side view of the present invention

FIG. 4 is a schematic structural view of a side cooling transport module of the present invention

FIG. 5 is a schematic view of the structure of the cooling box of the present invention

FIG. 6 is a side view of the cooling box of the present invention

In the figure:

1. a cooling tank; 2. a bearing mount; 3. a bearing; 4. a drum; 5. a conveyor belt; 6. a vent hole; 7. an air chamber; 8. an air outlet chamber; 9. an air outlet; 10. an air inlet; 11. a cavity; 12. a grate plate chain; 13. a support plate; 14. connecting ribs; 15. and a sprocket.

Detailed Description

As shown in fig. 1 to 6, the multi-surface cooling auxiliary feeding grate cooler device comprises a plurality of side cooling conveying modules, each side cooling conveying module comprises a cooling box 1, a roller 4 and a conveyor belt 5, the rollers 4 are arranged at two ends of the cooling box 1, the conveyor belts 5 are arranged on the rollers 4 and surround the cooling box 1, and a plurality of vent holes 6 are uniformly arranged on the conveyor belts 5; the cooling box 1 comprises an air chamber 7 and a plurality of air outlet chambers 8 communicated with the air chamber 7, the air outlet chambers 8 are located on one side of the air chamber 7 and are arranged in parallel from top to bottom, a bottom plate of each air outlet chamber 8 inclines downwards, an air outlet 9 is formed in the position, close to the bottom plate of each air outlet chamber 8, of the side wall of the cooling box 1, an accommodating chamber 11 for conveying clinker is formed between every two adjacent side cooling and conveying modules, a bottom surface cooling and conveying mechanism is arranged below the accommodating chamber 11 and comprises a grate plate chain 12 and a supporting plate 13, the supporting plate 13 penetrates through the grate plate chain 12, and the supporting plate 13 is of a hollow structure.

The side cooling conveying modules arranged in parallel can form a plurality of containing cavities 11, and when the clinker is conveyed, the side cooling conveying modules provide cold air for cooling. In the width direction, a plurality of side cooling conveyor modules may be installed. The side cooling conveying modules on the outer edge are arranged on the supporting plate 13, and the side cooling conveying modules on the inner side are connected with the side cooling conveying modules on the outer edge through connecting ribs 14.

The cross section of the air outlet chamber 8 is in a parallelogram shape; the top of the cooling box 1 is provided with two air inlets 10; the roller 4 is arranged on the bearing mounting seat 2 through a bearing 3; the grate chain 12 is driven by a chain wheel 15.

During operation, when clinker enters a horizontal grate bed of the grate cooler, the grate plate chain 12 drives the clinker to start to advance, and meanwhile, the side cooling conveying module and the air blower start to work, namely, the clinker is conveyed on three sides simultaneously, air enters the cooling box 1 and the support plate 13 through the pipelines respectively, flows out through the vent holes 6 on the conveying belt 5 and the grate plate chain 12 after being shunted by the air outlet chamber 8 of the cooling box 1 and the hollows of the support plate 13, and then the clinker is cooled on three sides.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The utility model provides a supplementary pay-off comb cooler device of multiaspect cooling which characterized in that: the cooling device comprises a plurality of side cooling conveying modules, wherein each side cooling conveying module comprises a cooling box, a roller and a conveying belt, the rollers are arranged at two ends of the cooling box, the conveying belts are arranged on the rollers and surround the cooling boxes, and a plurality of ventilation holes are uniformly formed in the conveying belts; the cooling box includes plenum and a plurality of air-out rooms that are linked together with the plenum, a plurality of air-out rooms are located plenum one side and from top to bottom parallel arrangement, the bottom plate downward sloping of air-out room, the cooling box lateral wall is close to air-out room bottom plate position and is provided with the air outlet, adjacent two form the appearance chamber that transports the grog in the middle of the side cooling conveying module, it is provided with bottom surface cooling conveying mechanism to hold the chamber below, bottom surface cooling conveying mechanism includes comb plate chain and backup pad, the backup pad passes the setting of comb plate chain, and this backup pad is hollow out construction.

2. The multi-faceted cooling assist feed grate cooler apparatus as claimed in claim 1, wherein: the side cooling conveying module on the outer edge is arranged on the supporting plate, and the side cooling conveying module on the inner side is connected with the side cooling conveying module on the outer edge through a connecting rib.

3. The multi-faceted cooling assist feed grate cooler apparatus as claimed in claim 1, wherein: the cross section of the air outlet chamber is in a parallelogram shape.

4. The multi-faceted cooling assist feed grate cooler apparatus as claimed in claim 1, wherein: and an air inlet is formed in the top of the cooling box.