CN215217212U - Stepped grate bed - Google Patents

Abstract

The utility model discloses a cascaded comb bed, including a plurality of case roof beams, case roof beam bottom face is equipped with a plurality of bearing rollers, the open-top of case roof beam, and a plurality of division boards of the inside fixedly connected with of case roof beam, a plurality of division boards keep apart into the check that the distance equals with the case roof beam, and the inner wall fixedly connected with flange of check, it is same the flange top height of case roof beam reduces from one side to the opposite side in proper order, and flange top, the inside fixedly connected with comb board of check, division board top joint has the push pedal, and the push pedal bottom is located on the comb board top. The utility model discloses, through setting up cascaded comb board, when keeping the advantage of the cold machine of current horizontal bed marching type comb, can effectual promotion comb cold machine's conveying efficiency, make bed of material thickness more controllable, the cold machine of controlling of comb restriction still less is favorable to the promotion of output.

Description

Stepped grate bed

Technical Field

The utility model relates to a comb bed technical field specifically is a cascaded comb bed.

Background

At present, in the production process of building material industry such as cement, a grate cooler is used as a cooling and heat recovery device of products and has an irreplaceable function. The prior grate cooler in China is a 5 th generation stepping grate cooler, a horizontal grate bed is used, hydraulic drive is adopted, and the structure has the advantages of stable operation, no material leakage and excellent cooling effect, but certain problems can be encountered sometimes. When the horizontally moving grate moves in a front-back stepping mode, materials are inevitably driven to reciprocate back and forth, so that the actual material discharge amount of the grate in one-stroke movement is often lower than expected, the material discharge is not smooth, the material layer is too high, the operation and ventilation of the grate are influenced, and the yield is limited to be improved.

Therefore, a stepped grate bed is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cascaded comb bed, through setting up cascaded comb board, when keeping the advantage of the cold machine of current horizontal bed marching type comb, can effectual promotion grate the transport efficiency of cold machine, make bed of material thickness more controllable, the cold machine of combing control the restriction still less, be favorable to the promotion of output to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cascaded comb bed, includes a plurality of case roof beams, case roof beam bottom end face is equipped with a plurality of bearing rollers, the open-top of case roof beam, and the inside fixedly connected with a plurality of division boards of case roof beam, a plurality of division boards keep apart the case roof beam into the check that the distance equals, and the inner wall fixedly connected with flange of check, it is same the flange top height of case roof beam reduces from one side to the opposite side in proper order, and flange top, the inside fixedly connected with comb board of check.

Through setting up cascaded comb board, when keeping the advantage of current horizontal bed marching type grate cooler, can effectual promotion grate cooler's conveying efficiency, make bed of material thickness more controllable, the control restriction of grate cooler still less is favorable to the promotion of output.

Preferably, the top end of the isolation plate is clamped with a push plate, and the bottom end of the push plate is located at the top end of the grate plate.

The push plate is tightly pressed on the grate plate to play a role of pushing, the grate bed is divided into a plurality of areas by the push plate, the material is pushed to walk when the grate bed moves, and meanwhile, the abrasion of the grate plate can be prevented.

Preferably, threaded holes are formed in two sides of the top end of the flange, and the grate plate and the push plate are both fixed on the box girder through screw implanting threaded holes.

The grid plate is arranged in the box girder and plays a role in ventilation.

Preferably, a seal is arranged between two adjacent box girders.

The gap between the box beams is shielded in a sealing way, so that material leakage is avoided.

Preferably, the sealing adopts a labyrinth sealing structure, and the inner sealing and the outer sealing are respectively buckled on two sides of the adjacent box girder.

The sealing effect is better by adopting the structure, and the structure is simple.

Preferably, the flange is hollow, and an air inlet is formed in the middle of the bottom end of the box girder.

This arrangement ensures that cool air smoothly enters the box girder and contacts the material on the grate plate.

Preferably, the bottom end of the carrier roller is provided with an upright post.

Before the use, the proper height of the grate bed is determined by selecting the upright column with the proper height.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the bottom surface of the box girder and the carrier rollers are horizontally arranged, so that the advantage of horizontal stepping of the grate cooler and the movement function are ensured to be unchanged. The top surface of the box girder is in a ladder shape after the grate plate and the push plate are installed, and gradually reduces along the material flowing direction, so that the conveying efficiency of materials above the box girder is improved when the box girder moves.

2. The utility model discloses under the guarantee realizes the condition of the function of the cold machine of five generations of horizontal marching type combs, realize through the stair structure that the material changes in the effect of carrying along the direction of transportation. The retraction resistance of the grate bed and the mutual acting force among the rows are reduced, and the grate cooler hydraulic system has the advantage of reducing the power consumption of the grate cooler hydraulic system. Meanwhile, due to the improvement of the material conveying capacity, the requirements on the granularity and the like of the rotary kiln materials are relaxed, the material layer is easy to control, the danger of a press machine in high-yield operation is reduced, the operability of the grate cooler is improved, the stroke per minute of the grate bed can be properly reduced, and the energy consumption of a hydraulic system is saved. The capacity of conveying the materials is improved, and meanwhile, the original structure of the grate cooler is basically not influenced.

3. The utility model discloses also there is very suitable to current comb formula cooler's improvement, and parts such as original comb board, bearing roller all can use, only need change the case roof beam and select the stand of suitable height can.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a view of the combination of the box girder and the seal of the present invention;

fig. 3 is an internal view of the box girder of the present invention.

In the figure: 1. a box girder; 2. a grid plate; 3. pushing the plate; 4. sealing; 5. a carrier roller; 6. an air inlet; 7. a separator plate; 8. a flange; 9. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution:

a stepped grate bed is shown in figures 1 and 3 and comprises a plurality of box girders 1, wherein a plurality of carrier rollers 5 are arranged on the bottom end surfaces of the box girders 1, the top ends of the box girders 1 are open, and a plurality of partition plates 7 are fixedly connected inside the box girders 1. The box girder 1 is divided into grids with equal distance by a plurality of partition plates 7, and the inner walls of the grids are fixedly connected with flanges 8. The height of the top end of a flange 8 of the same box girder 1 is reduced from one side to the other side in sequence, and a grid plate 2 is fixedly connected to the top end of the flange 8 and the interior of the grid. By arranging the stepped grate plate 2, the conveying efficiency of the grate cooler can be effectively improved while the advantages of the existing horizontal bed stepping grate cooler are kept. The thickness of the material layer is more controllable, the control limit of the grate cooler is less, and the improvement of the yield is facilitated.

As shown in fig. 2 and 3, the top end of the isolation plate 7 is clamped with the push plate 3, and the bottom end of the push plate 3 is located at the top end of the grate plate 2. The push plate 3 is tightly pressed on the grate plate 2 to play a role of pushing, the grate bed is divided into a plurality of areas by the push plate 3, the material is pushed to walk when the grate bed moves, and meanwhile, the abrasion of the grate plate 2 can be prevented. Threaded holes 9 are formed in two sides of the top end of the flange 8, the grid plate 2 and the push plate 3 are both embedded into the threaded holes 9 through screws and fixed on the box girder 1, and the grid plate 2 is installed in the box girder 1 and plays a role in ventilation.

As shown in figure 2, a seal 4 is arranged between two adjacent box girders 1, and the seal 4 shields the gap between the box girders 1 to avoid material leakage. The seal 4 adopts a labyrinth seal structure, the inner and outer seals are respectively buckled on two sides of the adjacent box girder 1, and the seal 4 adopts the structure, so that the sealing effect is better, and the structure is simple.

As shown in figure 2, the flange 8 is hollow, and the middle position of the bottom end of the box girder 1 is provided with an air inlet 6, which ensures that cold air smoothly enters the box girder 1 and contacts with materials on the grate plate 2.

As shown in figure 1, the bottom end of the carrier roller 5 is provided with a vertical column, and the proper height of the grate bed is determined by selecting the vertical column with the proper height before use.

The working principle is as follows: when the stepped grate bed is used, materials are arranged on the upper portion of the grate bed, the grate bed reciprocates horizontally under the action of external driving force, namely the box beam 1 reciprocates on the carrier roller 5, the materials are driven forwards under the pushing action of the push plate 3 under the action of material friction force and rear extrusion force, and the materials stay in place when the grate bed returns, so that the stepped transportation of the materials is realized. Meanwhile, cooling air below enters the box girder 1 through the air inlet 6 and then contacts with the material through the hollow flange 8 and the grate plate 2, so that the material is cooled ceaselessly and heat is taken away. However, due to the horizontal movement, when the grate bed retracts, a part of materials are inevitably carried back under the action of friction force, and the transportation efficiency is reduced. The utility model discloses an adjustment comb bed's structure reduces the comb board 2 and the 3 heights of push pedal on the material direction of transportation step by step, has formed a downhill path along the material direction of flow on whole comb bed length. When the grate bed is pushed forwards, the resistance on the materials when the materials tilt forwards is reduced, the thrust of an external hydraulic cylinder is saved, when the grate bed is retreated, the resistance between the materials and the grate bed is reduced, more materials are left in the original position to be discharged, the transportation efficiency is improved, and the energy consumption of an external hydraulic station is saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a cascaded comb bed, its characterized in that includes a plurality of case roof beams, case roof beam bottom end face is equipped with a plurality of bearing rollers, the open-top of case roof beam, and the inside fixedly connected with a plurality of division boards of case roof beam, a plurality of division boards keep apart the case roof beam into the check that the distance equals, and the inner wall fixedly connected with flange of check, it is same the flange top height of case roof beam reduces from one side to the opposite side in proper order, and flange top, the inside fixedly connected with comb board of check.

2. The stepped grate bed of claim 1, wherein: the top end of the isolation plate is clamped with a push plate, and the bottom end of the push plate is located at the top end of the grate plate.

3. The stepped grate bed of claim 2, wherein: threaded holes are formed in two sides of the top end of the flange, and the grate plate and the push plate are both fixed on the box girder through screw implanting threaded holes.

4. The stepped grate bed of claim 1, wherein: and a seal is arranged between every two adjacent box girders.

5. The stepped grate bed of claim 4, wherein: the sealing adopts a labyrinth sealing structure, and the inner and outer seals are respectively buckled on two sides of the adjacent box girder.

6. The stepped grate bed of claim 1, wherein: the flange is hollow, and an air inlet is formed in the middle of the bottom end of the box girder.

7. The stepped grate bed of claim 1, wherein: and the bottom end of the carrier roller is provided with an upright post.

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