CN114184052A

CN114184052A - Continuous feeding grate cooler

Info

Publication number: CN114184052A
Application number: CN202111654831.7A
Authority: CN
Inventors: 关玉明; 冯文正; 王辉; 程广硕; 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 continuous feeding grate cooler, which belongs to the technical field of grate coolers and comprises a frame body, wherein a grate bed is arranged on the frame body, the grate bed comprises a plurality of grate plate groups which are hinged with each other, a closed grate plate chain is formed by the plurality of grate plate groups, a support plate is arranged at the material conveying side of the closed grate plate chain, a plurality of air valve air chamber modules are arranged below the support plate, a plurality of side cooling conveying modules are arranged above the support plate, the side cooling conveying modules are positioned at two sides of the grate bed, and a clinker conveying cavity is formed by the side cooling conveying modules at two sides and the grate bed in a surrounding mode. The chain wheel is adopted to drive the grate plate to do rotary motion, the grate plate drives the clinker to move forward, sliding friction between the grate plate and the clinker is avoided, abrasion of the grate plate is reduced, and the service life of the grate plate is prolonged. The cooling box is additionally arranged above the grate bed, so that three sides of clinker can be cooled simultaneously, the cooling area is increased, the cooling efficiency is improved, the length of the grate bed can be reduced, and the cooling box and the conveyor belt are properly added in the width direction, so that the clinker can be cooled uniformly in the width direction.

Description

Continuous feeding grate cooler

Technical Field

The invention belongs to the technical field of grate coolers, and particularly relates to a continuous feeding grate cooler.

Background

The grate cooler is an important main machine device in the cement production process and mainly used for cooling and conveying cement clinker. After the clinker enters the cooler from the kiln, a material layer with a certain thickness is laid on the grate plate, and the blown cold air passes through the material layer moving on the grate plate in the mutually vertical direction to quench the clinker, so that the clinker can be quenched from 1300-1400 ℃ to below 100 ℃ within a few minutes.

The working principle of the existing grate cooler is that clinker is pushed to advance in a stepping mode: after the clinker enters the grate cooler, the grate plate drives the clinker forward for a certain distance, and then the grate plate is accelerated and retreated by utilizing inertia, so that the clinker moves forward, and the grate plate returns. Under the working principle, the grate plate and clinker have huge friction, and the grate plate is easy to wear.

The document of application No. 201310178115.5 discloses a grate cooler material pushing device, which comprises a connecting piece and a plurality of pushing rods arranged on the connecting piece in parallel, wherein the connecting piece and the pushing rods are combined together to form a fishbone-shaped pushing rod. The device can reduce resistance and reduce the phenomenon of material carrying. However, the device has larger sliding friction with the hot clinker, and the friction area is large, so that the device is easy to wear and has short service life.

The document with the application number of 201822108153.4 discloses a material pushing device for a grate cooler, which comprises slide rails arranged on a grate plate at intervals, a cavity arranged in the slide rails, a chute arranged on the top surface of the cavity and a material pushing mechanism. The device can rapidly tile cement clinker in a short time, and accumulation is avoided. However, the device has the disadvantage of being extremely easy to wear, and when the cement clinker is pushed, the clinker and the device have friction opposite to the movement direction, and the friction area is large, so that the device is seriously worn.

Disclosure of Invention

The invention aims to solve the problem of providing a continuous feeding grate cooler which has the advantages of simple structure, increased cooling area, improved working efficiency, prolonged service life and wide application.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a cold machine of continuous feeding grate, includes the support body, install the comb bed on the support body, the comb bed includes a plurality of articulated comb plate groups mutually, a plurality of comb plate groups form closed comb plate chain, closed comb plate chain passes through the drive arrangement drive, and this closed comb plate chain conveying side is provided with the backup pad, a plurality of blast gate plenum modules are installed to the backup pad below, and a plurality of side cooling delivery module are installed to this backup pad top, side cooling delivery module is located the comb bed both sides, and both sides side cooling delivery module and comb bed surround and form the appearance chamber that transports the grog.

Preferably, the grid plate group includes grid plate main part I and grid plate main part II, grid plate main part I and grid plate main part II all include grid plate ventilating board and curb plate, the curb plate both ends are provided with the connecting hole, and this curb plate sets up in grid plate ventilating board bottom both sides position, and this curb plate includes curb plate I and curb plate II, curb plate I and II staggered connection of curb plate.

Preferably, the driving device is installed on the side plate of the frame body and comprises chain wheels, the chain wheels are arranged at two ends of the closed grate plate chain, one end of the chain wheel is connected with the motor through an input shaft, and the other end of the chain wheel is provided with an output shaft.

Preferably, the air chamber air valve module comprises an air chamber, the bottom of the air chamber is communicated with an air valve, and the top of the air chamber is provided with an air chamber ventilation plate.

Preferably, the side cooling conveying module comprises a cooling box, rollers and a conveyor belt, wherein the rollers are arranged at two ends of the cooling box, the conveyor belt is arranged on the rollers and surrounds the cooling box, and a plurality of vent holes are uniformly distributed on the conveyor belt; the cooling box comprises an air inlet chamber and a plurality of air outlet chambers communicated with the air inlet chamber, the air outlet chambers are located on one side of the air inlet chamber and arranged in parallel from top to bottom, the bottom plates of the air outlet chambers incline downwards, and air outlets are formed in the positions, close to the bottom plates of the air outlet chambers, of the side walls of the cooling box.

Preferably, the grate plate ventilation plate and the air chamber ventilation plate are both provided with ventilation convex columns, each ventilation convex column comprises a ventilation hole, each ventilation hole is communicated with an arc-shaped air outlet channel at the top of the ventilation hole, and the air outlet end of each air outlet channel is located at the lower edge of each ventilation convex column.

Preferably, the ventilation convex columns on the grate ventilation plate are perpendicular to the conveying direction, and the ventilation convex columns on the air chamber ventilation plate are parallel to the conveying direction.

Preferably, the supporting plate is of a hollow structure.

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

(1) the chain wheel is adopted to drive the grate plate to do rotary motion, the grate plate drives the clinker to move forward, sliding friction between the grate plate and the clinker is avoided, abrasion of the grate plate is reduced, and the service life of the grate plate is prolonged;

(2) the cooling box is additionally arranged above the grate bed, so that three surfaces of clinker can be simultaneously cooled, the cooling area is increased, the cooling efficiency is improved, and the length of the grate bed can be reduced; the cooling box cools the clinker in the height direction, so that the clinker can be uniformly cooled in the height direction;

(3) the conveyor belt is arranged outside the cooling box, the roller drives the conveyor belt to rotate, clinker is driven to advance from two sides by virtue of static friction, the advancing speed of the clinker is accelerated, the conveying pressure of the grate plate chain is reduced, and the working efficiency is improved;

(4) if the grate bed is wider, a cooling box and a conveyor belt can be properly added in the width direction, and chambers are added, so that the grate bed can be cooled uniformly in the width direction;

(5) the motor is adopted to drive all the parts to rotate, so that the problems of sealing performance, hydraulic oil pollution and the like of a hydraulic system are avoided;

(6) the invention has simple structure and light weight, the frame body adopts a steel frame structure, the overall size and weight are reduced, and the occupied space of the equipment and the manufacturing cost are greatly reduced;

(7) each module is formed by combining a plurality of rows and a plurality of columns of parts, the number of each module can be increased and reduced properly according to the aspects of space size, working efficiency and the like, and the adaptability to space is strong.

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 cross-sectional view of the present invention

Fig. 3 is a schematic view of the structure of the grate plate assembly of the present invention

FIG. 4 is a schematic structural view of an air valve plenum module according to the present invention

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

FIG. 6 is a schematic view of the structure of the venting boss of the present invention

In the figure:

1. a cooling tank; 2. a ventilation convex column; 3. a drum; 4. a conveyor belt; 5. a support plate; 6. a frame body; 7. a frame body side plate; 8. an input shaft; 9. a bearing; 10. a bearing seat; 11. a grate plate main body I; 12. a grate plate main body II; 13. a vent hole; 14. a sprocket; 15. an output shaft; 16. a plenum vent plate; 17. an air chamber; 18. an air valve; 19. closing the grate plate chain; 20. an air valve air chamber module; 21. a side cooling transport module; 22. a cavity; 23. a grate plate ventilation plate; 24. connecting holes; 25. a side plate I; 26. a side plate II; 27. an air inlet chamber; 28. an air outlet chamber; 29. an air outlet; 30. an air outlet end; 31. and an air outlet channel.

Detailed Description

As shown in fig. 1 to 6, the continuous feeding grate cooler of the invention comprises a frame body 6, a grate bed is arranged on the frame body 6, the grate bed comprises a plurality of grate plate groups which are hinged with each other, a plurality of grate plate groups form a closed grate plate chain 19, the closed grate plate chain 19 is driven by a driving device, a support plate 5 is arranged at the feeding side of the closed grate plate chain 19, the support plate 5 is a hollow structure and is supported by a support beam, a plurality of air valve air chamber modules 20 are arranged below the support plate 5, a plurality of side cooling conveying modules 21 are arranged above the support plate 5, the side cooling conveying modules 21 are positioned at two sides of the grate bed, and the side cooling conveying modules 21 at two sides and the grate bed are surrounded to form a containing cavity 22 for conveying clinker.

Wherein, the comb board group is including comb board main part I11 and comb board main part II 12, comb board main part I11 and comb board main part II 12 all include comb board ventilating board 23 and curb plate, the curb plate both ends are provided with connecting hole 24, this curb plate sets up in comb board ventilating board 23 bottom both sides position, this curb plate includes curb plate I25 and curb plate II 26, curb plate I25 and II 26 staggered connection of curb plate, I25 of the curb plate of comb board main part I11 is located comb board ventilating board 23 bottom tip border position, II 26 of the curb plate of comb board main part II 12 are located the inboard position of comb board ventilating board 23 bottom tip.

Wherein, drive arrangement installs on support body curb plate 7, and this drive arrangement includes sprocket 14, and sprocket 14 sets up in closed comb plate chain 10 both ends, and one end sprocket 14 links to each other with the motor through input shaft 8, installs output shaft 15 on the other end sprocket 14, and input shaft 8 and output shaft 15 link to each other with support body curb plate 7 through bearing 9 and bearing frame 10.

The air chamber air valve module 20 comprises an air chamber 17, the bottom of the air chamber 17 is communicated with an air valve 18, and the top of the air chamber 17 is provided with an air chamber ventilation plate 16.

Wherein, side cooling conveying module 21 includes cooler bin 1, cylinder 3 and conveyer belt 4, and 1 both ends of cooler bin are provided with cylinder 3, and conveyer belt 4 installs and surrounds cooler bin 1 setting on cylinder 3, and the motor is installed in cylinder 3 top, drives cylinder 3 and rotates and drive conveyer belt 4 and make the grog advance simultaneously cooler bin 1 in the middle of the conveyer belt provide cold wind and cool down. A plurality of vent holes are uniformly arranged on the conveyor belt 4; the cooling box 1 comprises an air inlet chamber 27 and a plurality of air outlet chambers 28 communicated with the air inlet chamber 27, the air outlet chambers 28 are positioned on one side of the air inlet chamber 27 and arranged in parallel from top to bottom, the bottom plate of the air outlet chambers 28 inclines downwards, an air outlet 29 is arranged on the side wall of the cooling box 1 close to the bottom plate of the air outlet chambers 28, and an air inlet is arranged at the top of the cooling box 1.

Wherein, the ventilation convex columns 2 are arranged on the grate plate ventilation plate 23 and the air chamber ventilation plate 16, the ventilation convex columns 2 comprise ventilation holes 13, the ventilation holes 13 are communicated with arc-shaped air outlet channels 31 at the tops of the ventilation holes, and air outlet ends 30 of the air outlet channels are positioned at the lower edges of the ventilation convex columns 2. Wherein, the ventilating convex columns 2 on the grate ventilation plate 23 are arranged perpendicular to the conveying direction, and the ventilating convex columns 2 on the air chamber ventilation plate 16 are arranged parallel to the conveying direction.

According to the invention, by changing the conveying principle and the working mode, the sliding friction is eliminated, the friction on the grate plate is reduced, the grate plate is not abraded, the service life is prolonged, the side cooling conveying module 21 is additionally arranged, the conveyor belt drives the conveying of the clinker side edge at the outer side by virtue of static friction, the uniform advancing of the clinker is facilitated, the cooling area is increased, and the cooling efficiency and the conveying efficiency are improved.

The invention can greatly reduce the length of the grate cooler, and can also properly increase the width of the grate cooler, thereby greatly improving the working efficiency of the grate cooler. According to the invention, the side cooling conveying module 21 can be properly added in the width direction, and the containing cavities 22 can be properly increased or decreased to improve the working efficiency; in the length direction, also can suitably increase and decrease according to actual cooling effect and space problem, promptly in the width direction, by a plurality of comb board main part I11 of axle installation, a epaxial a plurality of comb board main part II 12 of installation, and at every axle both ends installation bearing, in the length direction, with a plurality of comb board main part I11 and a plurality of comb board main part II 12 that link alternately the installation link become a closed comb board chain 19, and install the bearing at both ends on sprocket 14, wherein the comb board chain adopts two kinds of crisscross comb boards to constitute, constitute side by side in turn through the axle series connection, make the comb board chain have better leakproofness, prevent that the grog from leaking down.

The conveying belt power device provided by the invention is changed into a motor, the problems of hydraulic transmission tightness and hydraulic oil pollution are avoided, and the chain tensioning device is used for maintaining the tensioning state of the grate plate chain. A plurality of air valve air chamber modules are arranged on the mounting plate, the flow of cold air at the bottom is controlled by the air valves, and the cold air flows through the grate plate through the air chamber, so that hot materials are cooled.

The working process is as follows: when the clinker enters the horizontal grate bed of the grate cooler, the input shaft motor rotates to drive the input shaft 8 to rotate and transmit the clinker to the closed grate plate chain 19 to rotate; the grate plate chain 19 is closed to drive the clinker to start advancing; meanwhile, cold air enters an air chamber 17 through an air valve 18, passes through an air chamber ventilating plate 16 and passes through a closed grate plate chain 19 to cool the clinker; meanwhile, the side cooling conveying module 21 starts to work, cold air enters the cooling box 1, clinker is cooled from the side, and the motor drives the roller 3 to rotate, so that the conveyor belt 4 drives the clinker to move forward; and the clinker is cooled and conveyed on three sides simultaneously, and the working is realized in a circulating reciprocating manner.

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 continuous feeding grate cooler is characterized in that: the improved clinker aggregate device comprises a frame body, install the comb bed on the support body, the comb bed includes a plurality of looks articulated comb board groups, a plurality of comb board groups form closed comb board chain, closed comb board chain passes through the drive arrangement drive, and this closed comb board chain conveying side is provided with the backup pad, a plurality of blast gate plenum modules are installed to the backup pad below, and a plurality of side cooling delivery module are installed to this backup pad top, side cooling delivery module is located the comb bed both sides, and both sides side cooling delivery module and comb bed surround and form the appearance chamber of transporting the clinker.

2. The continuous feed grate cooler of claim 1, characterized in that: the grid plate group comprises a grid plate main body I and a grid plate main body II, the grid plate main body I and the grid plate main body II respectively comprise a grid plate ventilating plate and a side plate, connecting holes are formed in two ends of the side plate, the side plate is arranged on two sides of the bottom of the grid plate ventilating plate and comprises a side plate I and a side plate II, and the side plate I and the side plate II are connected in a staggered mode.

3. The continuous feed grate cooler of claim 1, characterized in that: the driving device is arranged on the side plate of the frame body and comprises chain wheels, the chain wheels are arranged at two ends of the closed grate plate chain, one end of the chain wheel is connected with the motor through an input shaft, and the other end of the chain wheel is provided with an output shaft.

4. The continuous feed grate cooler of claim 1, characterized in that: the air chamber air valve module comprises an air chamber, the bottom of the air chamber is communicated with an air valve, and an air chamber ventilation plate is arranged at the top of the air chamber.

5. The continuous feed grate cooler of claim 1, characterized in that: the side cooling conveying module comprises a cooling box, rollers and a conveying belt, wherein the rollers are arranged at two ends of the cooling box, the conveying belt is arranged on the rollers and surrounds the cooling box, and a plurality of ventilation holes are uniformly distributed in the conveying belt; the cooling box comprises an air inlet chamber and a plurality of air outlet chambers communicated with the air inlet chamber, the air outlet chambers are located on one side of the air inlet chamber and arranged in parallel from top to bottom, the bottom plates of the air outlet chambers incline downwards, and air outlets are formed in the positions, close to the bottom plates of the air outlet chambers, of the side walls of the cooling box.

6. The continuous feed grate cooler of claim 2, characterized in that: the grate plate ventilating plate and the air chamber ventilating plate are both provided with ventilating convex columns, each ventilating convex column comprises a vent hole, each vent hole is communicated with an arc-shaped air outlet channel at the top of the vent hole, and the air outlet end of each air outlet channel is positioned at the lower edge of the corresponding ventilating convex column.

7. The continuous feed grate cooler of claim 6, characterized in that: the ventilation convex columns on the grate plate ventilation plate are perpendicular to the conveying direction, and the ventilation convex columns on the air chamber ventilation plate are parallel to the conveying direction.

8. The continuous feed grate cooler of claim 1, characterized in that: the supporting plate is of a hollow structure.