CN219751018U

CN219751018U - Cement clinker unloader

Info

Publication number: CN219751018U
Application number: CN202321197416.8U
Authority: CN
Inventors: 常军华; 张会平
Original assignee: Hebei Jinlong Cement Group Co ltd
Current assignee: Hebei Jinlong Cement Group Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-26
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a cement clinker unloading machine, which comprises a machine case and a conveyor, wherein the top end of the machine case is provided with a feed inlet, and the conveyor is arranged in the machine case; still include feeder hopper, buffer gear and dust extraction, dust extraction includes dust collection box, air exhauster, dust fall pipe, dust collection box and filter equipment, and the top at the quick-witted case is installed to the feeder hopper, and the output of feeder hopper and the feed inlet intercommunication of machine case, and buffer gear installs the inside at the machine case, and buffer gear is located the upper portion of conveyer, and dust extraction installs the top at the machine case, adsorbs the dust that produces unloading. The utility model improves the service life of the conveyor, reduces the production and processing cost, blocks and adsorbs scattered dust, avoids the error suction of dust in the air when an operator works, ensures the health of the operator, and improves the dust collection efficiency.

Description

Cement clinker unloader

Technical Field

The utility model relates to the technical field of cement processing, in particular to a cement clinker unloading machine.

Background

The cement clinker is prepared with limestone, clay and iron as main material and through compounding in proper proportion, burning to some or all melting, and cooling. In the cement industry, the most commonly used portland cement clinker has the main chemical components calcium oxide, silica and small amounts of alumina and iron oxide. The main mineral composition is tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. The Portland cement clinker is ground together with a proper amount of gypsum to obtain Portland cement, the clinker warehouse can store the cement clinker, and then the clinker in the clinker warehouse is conveyed to a bulk warehouse, so that the transport vehicle is convenient for transporting the clinker.

In the prior art, a cement clinker discharging device proposed by publication No. CN208199814U comprises a shell, a cylinder, a connecting rod, a connecting shaft and an arc-shaped valve plate fixedly connected with the connecting shaft, wherein the arc-shaped valve plate is arranged at a discharging opening at the bottom of the shell, the cylinder drives the connecting rod and the connecting shaft to enable the arc-shaped valve plate to be opened or closed, and the bottom discharging opening of a … … discharging chute and the material conveying direction form an acute angle; however, during unloading, a large amount of dust is generated, the dust drifts in the air to pollute the environment, and the dust in the air is easily sucked into the body by workers, so that the physical health of the workers is seriously affected; the cement clinker is of a block structure, and if the cement clinker directly falls onto the conveying belt during unloading, the conveying belt is damaged due to impact force, so that the maintenance cost of the conveying belt is increased, and the practicability is poor.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a cement clinker unloader which can block and adsorb scattered dust, avoid mistakenly sucking dust in air when an operator works, ensure the health of the operator and further improve dust collection efficiency and practicality.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.

The cement clinker unloader comprises a case and a conveyor, wherein a feed inlet is formed in the top end of the case, and the conveyor is arranged in the case; the dust collection device comprises a machine box, a conveyor, a dust collection mechanism, a feeding hopper, a buffer mechanism and a dust collection mechanism, wherein the feeding hopper is arranged at the top end of the machine box, the output end of the feeding hopper is communicated with a feeding hole of the machine box, the buffer mechanism is arranged in the machine box and is positioned at the upper part of the conveyor, and the dust collection mechanism is arranged at the top end of the machine box and is used for adsorbing dust generated by discharging; the cement clinker is poured onto the conveyor inside the machine case through the feeding hopper, the size of the feeding hole is increased, the convenience of dumping is improved, the buffer mechanism buffers and blocks the cement clinker in the falling process, hard contact of the cement clinker and the conveyor is avoided, the conveyor is prevented from being damaged due to long-time impact of the cement clinker, the service life of the conveyor is prolonged, the production and processing cost is reduced, the dust collection mechanism blocks and adsorbs scattered dust, the dust is prevented from scattering and polluting the air, the situation that operators mistakenly suck dust in the air during working is avoided, the physical health of the operators is guaranteed, the use of the operators is facilitated, the dust collection efficiency is improved, the surrounding environment cannot be polluted in the unloading process of the cement clinker, and the practicability is improved.

Preferably, the buffer mechanism comprises a buffer motor, a rotating shaft and a plurality of buffer baffles, wherein the buffer motor is arranged on the outer side wall of the front end of the machine case, the output end of the buffer motor penetrates through the outer wall of the machine case to be connected with one end of the rotating shaft, the other end of the rotating shaft is rotatably arranged on the inner side wall of the rear end of the machine case, and a plurality of buffer baffles 26 are uniformly arranged on the outer wall of the rotating shaft; when the cement clinker falls from the bottom of feeder hopper, the cement clinker whereabouts in-process is blocked by buffer baffle to pile up on buffer baffle's top, start buffer motor drive pivot rotation, the pivot rotates and drives buffer baffle around the pivot rotation, buffer baffle rotates and slowly places its top accumulational cement clinker on the conveyer top, cyclic reciprocating operation has avoided the rigid contact of cement clinker and conveyer, thereby avoided the conveyer to receive the impact of cement clinker for a long time and take place to damage, the life of conveyer has been improved, production and processing's cost has been reduced, make the staff unnecessary to carry out periodic maintenance to the conveyer any more, staff's work load has been reduced, and the practicality is improved.

Preferably, the dust collection mechanism comprises a dust collection box, an exhaust fan, a dust fall pipe, a dust collection box and a filtering mechanism, wherein the dust outlet is formed in the top end of the right part of the machine case, the dust collection box is fixedly arranged on the top end of the right part of the machine case, the input end of the dust collection box is communicated with the dust outlet of the machine case, the exhaust fan is fixedly arranged at the front end of the dust collection box, the dust fall pipe is arranged at the bottom end of the dust collection box, the bottom output end of the dust fall pipe is connected with the top end of the dust collection box, and the filtering mechanism is arranged in the front end of the dust collection box; during unloading, cement clinker falls down from the bottom of conveyer and drifts a large amount of dust, and the quick-witted case blocks the dust that drifts this moment, thereby prevent that the dust from outwards diffusing to the air in, start the air exhauster with the dust suction box that drifts in the machine incasement, the dust removes to the air exhauster in the dust suction box and is blocked by filtering mechanism, fall into the dust collection box through the dust fall pipe, avoided the dust to drift polluted air, the staff during operation mistake is inhaled the dust in the air, the healthy of staff has been guaranteed, convenience when improving the practicality, dust collection efficiency has been improved.

Preferably, the filtering mechanism comprises a filtering baffle net, two L-shaped plates, two springs and a vibrating mechanism, wherein two groups of limit grooves are formed in the inner walls of the upper end and the lower end of the dust box, the L-shaped plates are fixedly arranged at the upper end and the lower end of the filtering baffle net, the other ends of the L-shaped plates are slidably arranged in the limit grooves through the limit grooves, the springs are arranged in the limit grooves, one ends of the springs are connected with the inner walls of the limit grooves, the other ends of the springs are connected with the outer side walls of the L-shaped plates, the L-shaped plates are elastically connected with the limit grooves through the springs, and the vibrating mechanism is arranged on the outer side walls of the dust box; when starting the air exhauster and inhaling the dust through the suction box, the dust removes to the air exhauster in the suction box and is blocked by filtering the screen, and the part dust that is blocked by filtering the screen falls into the dust collection box along filtering the screen, and in the surface and the mesh of filtering the screen are piled up to a part dust in addition, prevent that the dust from getting into in the air exhauster and causing the damage, improve equipment's life improves the practicality.

Preferably, the vibration mechanism comprises two driving motors, two rotating discs, two driving rods, two pushing rods and two fixing rings, wherein the two driving motors are symmetrically arranged on the outer side wall of the dust collection box, the output ends of the driving motors penetrate through the side wall of the dust collection box and are concentrically connected with the rotating discs, the two rotating discs are eccentrically and rotatably connected with one end of each driving rod, the other end of each driving rod is rotatably connected with one end of each pushing rod, the other end of each pushing rod is in contact with one end of the filtering baffle net, the pushing rods are slidably arranged on the fixing rings, and the fixing rings are respectively and fixedly connected with the inner side wall of the dust collection box; the driving motor is started to drive the rotating disc to rotate, one end of the driving rod is driven to do circular motion around the rotating disc by rotation of the rotating disc, at the moment, the other end of the driving rod pushes the push rod to do reciprocating motion in the horizontal direction, and the push rod moves to repeatedly knock the filtering baffle net, so that dust accumulated on the surface of the filtering baffle net and in meshes is knocked down and falls into the dust collection box, the filtering baffle net is prevented from being blocked by dust, the filtering baffle net can keep a good ventilation state, and the dust collection effect is improved.

Preferably, the dust collector also comprises two dust-blocking plates, wherein the two dust-blocking plates are fixedly arranged on the inner wall of the dust falling pipe and are obliquely staggered; the dust drops from the surface of filtering the screen and falls onto the dust blocking plate, falls into the dust collection box along two dust blocking plates, and is blocked by the dust blocking plate in the dust collection box because the exhaust fan continuously extracts air, so that the dust falling into the dust collection box is prevented from being extracted again by the exhaust fan, the dust collection device is convenient for collecting the dust, and the practicability is improved.

By adopting the technical scheme, the utility model has the following technical progress.

According to the utility model, cement clinker is poured onto the conveyor in the machine case through the feeding hopper, the size of the feeding port is increased by the feeding hopper, the convenience of dumping is improved, the buffer mechanism is used for buffering and blocking the cement clinker in the falling process, and the hard contact between the cement clinker and the conveyor is avoided, so that the conveyor is prevented from being damaged due to the impact of the cement clinker for a long time, the service life of the conveyor is prolonged, the production and processing cost is reduced, the dust collection mechanism is used for blocking and adsorbing scattered dust, the dust is prevented from scattering and polluting the air, the situation that an operator erroneously sucks dust in the air during working is avoided, the physical health of the operator is ensured, the use of the operator is facilitated, the dust collection efficiency is improved, the environment around can not be polluted in the unloading process of the cement clinker, and the practicability is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 3 is a schematic view of the right-side cross-sectional structure of the present utility model;

FIG. 4 is a schematic view of the structure of the portion A in FIG. 3 according to the present utility model;

FIG. 5 is a schematic diagram of a buffer motor and buffer baffle;

FIG. 6 is a schematic view showing a sectional top view of the dust box of the present utility model;

wherein: 1. a chassis; 2. a conveyor; 3. a feed hopper; 4. a buffer motor; 5. a rotating shaft; 6. a buffer baffle; 7. a dust suction box; 8. an exhaust fan; 9. a dust falling pipe; 10. a dust collection box; 11. a filtering baffle net; 12. an L-shaped plate; 13. a spring; 14. a driving motor; 15. a rotating disc; 16. a driving rod; 17. a push rod; 18. a fixing ring; 19. dust-blocking plate.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

The cement clinker unloader, as shown in fig. 1-6, comprises a case 1, a conveyor 2, a feed hopper 3, a buffer mechanism and a dust collection mechanism, wherein a feed inlet is formed in the top end of the case 1, and the conveyor 2 is arranged in the case 1; the top at machine case 1 is installed to feeder hopper 3, and the output of feeder hopper 3 and the feed inlet intercommunication of machine case 1, and buffer gear installs in the inside of machine case 1, and buffer gear is located the upper portion of conveyer 2, and dust absorption mechanism installs on the top of machine case 1, adsorbs the dust that the production of unloading.

As shown in fig. 1, 2 and 5, the buffer mechanism comprises a buffer motor 4, a rotating shaft 5 and a plurality of buffer baffles 6, wherein the buffer motor 4 is installed on the outer side wall of the front end of the case 1, the output end of the buffer motor 4 penetrates through the outer wall of the case 1 to be connected with one end of the rotating shaft 5, the other end of the rotating shaft 5 is rotatably installed on the inner side wall of the rear end of the case 1, and a plurality of 26 are uniformly installed on the outer wall of the rotating shaft 5.

When the cement clinker falls from the bottom of the feed hopper 3, the cement clinker is blocked by the buffer baffle 6 in the falling process, and is accumulated at the top end of the buffer baffle 6, the buffer motor 4 is started to drive the rotating shaft 5 to rotate, the rotating shaft 5 rotates to drive the buffer baffle 6 to rotate around the rotating shaft 5, the buffer baffle 6 rotates to slowly place the cement clinker accumulated at the top end of the buffer baffle on the top end of the conveyer 2, and the cement clinker is operated in a circulating and reciprocating manner, so that the hard contact between the cement clinker and the conveyer 2 is avoided, the conveyer 2 is prevented from being damaged due to the impact of the cement clinker for a long time, the service life of the conveyer 2 is prolonged, the production and processing cost is reduced, the workload of workers is reduced, and the practicability is improved.

As shown in fig. 1 and 3, the dust collection mechanism comprises a dust collection box 7, an exhaust fan 8, a dust fall pipe 9, a dust collection box 10, a filtering mechanism and two dust blocking plates 19, wherein a dust outlet is formed in the top end of the right part of the machine case 1, the dust collection box 7 is fixedly arranged on the top end of the right part of the machine case 1, the input end of the dust collection box 7 is communicated with the dust outlet of the machine case 1, the exhaust fan 8 is fixedly arranged at the front end of the dust collection box 7, the dust fall pipe 9 is arranged at the bottom end of the dust collection box 7, the bottom output end of the dust fall pipe 9 is connected with the top end of the dust collection box 10, and the filtering mechanism is arranged inside the front end of the dust collection box 7; the inner wall of the dust falling pipe 9 is fixedly provided with two dust blocking plates 19, and the two dust blocking plates 19 are obliquely arranged in a staggered manner.

During unloading, cement clinker falls down from the bottom end of the conveyor 2 and drifts a large amount of dust, the case 1 blocks the drifted dust at the moment, thereby prevent the dust from diffusing to the air outwards, start the air exhauster 8 to suck the dust drifted in the case 1 into the dust collection box 7, the dust moves towards the air exhauster 8 in the dust collection box 7 and is blocked by the filtering mechanism, fall into the dust collection box 10 through the dust fall pipe 9, the dust drifted and polluted air is avoided, the dust in the air is erroneously sucked by operators during working, the health of the operators is ensured, the convenience during practicability is improved, the dust collecting efficiency is improved, the dust falls off from the surface of the filtering baffle net 11 and falls onto the dust blocking plates 19, and then falls into the dust collection box 10 along the two dust blocking plates 19, and the dust blocking plates 19 block the dust in the dust collection box 10 because the air exhauster 8 continuously extracts the dust falling into the dust collection box 10 again, the dust is prevented from being drawn out by the air exhauster 8, the equipment is convenient for collecting the dust, and the practicability is improved.

As shown in fig. 4 and 6, the filtering mechanism comprises a filtering baffle net 11, two L-shaped plates 12, two springs 13 and a vibration mechanism, two groups of limiting grooves are formed in the inner walls of the upper end and the lower end of the dust box 7, the L-shaped plates 12 are fixedly arranged at the upper end and the lower end of the filtering baffle net 11, the other ends of the L-shaped plates 12 are slidably arranged in the limiting grooves through the limiting grooves, the springs 13 are arranged in the limiting grooves, one ends of the springs 13 are connected with the inner walls of the limiting grooves, the other ends of the springs 13 are connected with the outer side walls of the L-shaped plates 12, the L-shaped plates 12 are elastically connected with the limiting grooves through the springs 13, and the vibration mechanism is arranged on the outer side wall of the dust box 7.

The vibration mechanism comprises two driving motors 14, two rotating discs 15, two driving rods 16, two pushing rods 17 and two fixing rings 18, wherein the two driving motors 14 are symmetrically arranged on the outer side wall of the dust collection box 7, the output ends of the driving motors 14 penetrate through the side wall of the dust collection box 7 and are concentrically connected with the rotating discs 15, the two rotating discs 15 are eccentrically and rotatably connected with one end of each driving rod 16, the other end of each driving rod 16 is rotatably connected with one end of each pushing rod 17, the other end of each pushing rod 17 is in contact with one end of the filtering baffle net 11, the pushing rods 17 are slidably arranged on the fixing rings 18, and the fixing rings 18 are fixedly connected onto the inner side wall of the dust collection box 7 respectively.

When the suction fan 8 is started to suck dust through the dust suction box 7, the dust moves towards the suction fan 8 in the dust suction box 7 and is blocked by the filter screen 11, a part of dust blocked by the filter screen 11 falls into the dust collection box 10 along the filter screen 11, another part of dust is accumulated on the surface and in the meshes of the filter screen 11, the dust is prevented from entering the suction fan 8 to cause damage, the service life of equipment is prolonged, practicability is improved, the driving motor 14 is started to drive the rotating disc 15 to rotate, one end of the driving rod 16 is driven to do circular motion around the rotating disc 15 by rotating the rotating disc 15, at the moment, the other end of the driving rod 16 pushes the push rod 17 to do reciprocating motion in the horizontal direction, the push rod 17 moves to repeatedly strike the filter screen 11, and accordingly dust accumulated on the surface and in the meshes of the filter screen 11 falls into the dust collection box 10, the filter screen 11 is prevented from being blocked by dust, the filter screen 11 can keep a good ventilation state, and dust collection effect is improved.

When the cement clinker falls from the bottom end of the feed hopper 3, as shown in fig. 1 to 6, the cement clinker is blocked by the buffer baffle 6 in the falling process and accumulated at the top end of the buffer baffle 6, the buffer motor 4 is started to drive the rotating shaft 5 to rotate, the rotating shaft 5 drives the buffer baffle 6 to rotate around the rotating shaft 5, the buffer baffle 6 rotates to slowly place the cement clinker accumulated at the top end of the buffer baffle 6 at the top end of the conveyor 2, the cement clinker is circularly operated in a reciprocating manner, the cement clinker falls from the bottom end of the buffer baffle 6 and drifts a large amount of dust, at the moment, the case 1 blocks the drifted dust, thereby preventing the dust from being outwards diffused into the air, the air exhauster 8 is started to suck the drifted dust in the case 1 into the dust suction box 7, the dust moves towards the air exhauster 8 in the dust suction box 7 and is blocked by the filter screen 11, part of dust blocked by the filter screen 11 falls into the dust box 10 along the filter screen 11, the other part of dust is accumulated on the surface and meshes of the filter screen 11, the driving motor 14 is started to drive the rotating disc 15 to rotate, the rotating disc 15 rotates to drive one end of the driving rod 16 to do circular motion around the rotating disc 15, at the moment, the other end of the driving rod 16 pushes the push rod 17 to do reciprocating motion in the horizontal direction, the push rod 17 moves to repeatedly strike the filter screen 11, so that the dust accumulated on the surface and meshes of the filter screen 11 is knocked down, falls off from the surface of the filter screen 11 and falls onto the dust blocking plates 19, falls into the dust box 10 along the two dust blocking plates 19, and as the exhaust fan 8 continuously performs exhaust, the dust blocking plates 19 block the dust in the dust box 10, so that the dust falling into the dust box 10 is prevented from being extracted again by the exhaust fan 8, the dust box 10 is taken down to clean after the dust box 10 is fully collected.

The main functions realized by the utility model are as follows: 1) The buffer baffle 6 is used for blocking cement clinker falling, the cement clinker piled on the top end of the buffer baffle 6 is slowly placed on the top end of the conveyor 2 by rotation, and the buffer baffle 6 is operated in a circulating and reciprocating mode, so that hard contact between the cement clinker and the conveyor 2 is avoided, damage to the conveyor 2 due to long-time impact of the cement clinker is avoided, the service life of the conveyor 2 is prolonged, and the production and processing cost is reduced; 2) Dust that drifts in the machine case 1 is inhaled into the dust box 7 through the air exhauster 8, and the dust removes to the air exhauster 8 in the dust box 7 and is blocked by filtering mechanism, falls into dust box 10 through dust fall pipe 9, has avoided the dust to drift polluted air, and the operating personnel mistake is inhaled the dust in the air during operation, has guaranteed that the staff's is healthy, has improved the efficiency of gathering dust.

The installation mode, the connection mode or the setting mode of each component are common mechanical modes, and can be implemented as long as the beneficial effects can be achieved; the buffer motor 4 and the driving motor 14 of the present utility model are commercially available and can be installed and operated by those skilled in the art according to the accompanying instructions without the need for creative efforts of those skilled in the art.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The cement clinker unloading machine comprises a machine case (1) and a conveyor (2), wherein a feed inlet is formed in the top end of the machine case (1), and the conveyor (2) is arranged in the machine case (1); the novel dust collection machine is characterized by further comprising a feeding hopper (3), a buffer mechanism and a dust collection mechanism, wherein the feeding hopper (3) is arranged at the top end of the machine case (1), the output end of the feeding hopper (3) is communicated with the feed inlet of the machine case (1), the buffer mechanism is arranged in the machine case (1) and is arranged on the upper portion of the conveyor (2), and the dust collection mechanism is arranged at the top end of the machine case (1) and is used for adsorbing dust generated by discharging.

2. The cement clinker unloading machine according to claim 1, wherein the buffer mechanism comprises a buffer motor (4), a rotating shaft (5) and a plurality of buffer baffles (6), the buffer motor (4) is installed on the outer side wall of the front end of the machine case (1), the output end of the buffer motor (4) penetrates through the outer wall of the machine case (1) to be connected with one end of the rotating shaft (5), the other end of the rotating shaft (5) is rotatably installed on the inner side wall of the rear end of the machine case (1), and a plurality of 26 are uniformly installed on the outer wall of the rotating shaft (5).

3. The cement clinker unloading machine according to claim 1, wherein the dust collection mechanism comprises a dust collection box (7), an exhaust fan (8), a dust fall pipe (9), a dust collection box (10) and a filtering mechanism, the dust outlet is formed in the top end of the right portion of the machine case (1), the dust collection box (7) is fixedly arranged on the top end of the right portion of the machine case (1), the input end of the dust collection box (7) is communicated with the dust outlet of the machine case (1), the exhaust fan (8) is fixedly arranged at the front end of the dust collection box (7), the dust fall pipe (9) is arranged at the bottom end of the dust collection box (7), the bottom output end of the dust fall pipe (9) is connected with the top end of the dust collection box (10), and the filtering mechanism is arranged inside the front end of the dust collection box (7).

4. A cement clinker unloader according to claim 3, wherein the filtering mechanism comprises a filtering baffle net (11), two L-shaped plates (12), two springs (13) and a vibration mechanism, two groups of limiting grooves are formed in the inner walls of the upper end and the lower end of the dust box (7), the L-shaped plates (12) are fixedly arranged at the upper end and the lower end of the filtering baffle net (11), the other ends of the L-shaped plates (12) are slidably arranged in the limiting grooves through the limiting grooves, the springs (13) are arranged in the limiting grooves, one ends of the springs (13) are connected with the inner walls of the limiting grooves, the other ends of the springs (13) are connected with the outer side walls of the L-shaped plates (12), the L-shaped plates (12) are elastically connected with the limiting grooves through the springs (13), and the vibration mechanism is arranged on the outer side walls of the dust box (7).

5. The cement clinker unloading machine according to claim 4, wherein the vibration mechanism comprises two driving motors (14), two rotating discs (15), two driving rods (16), two pushing rods (17) and two fixing rings (18), the two driving motors (14) are symmetrically arranged on the outer side wall of the dust suction box (7), the output ends of the driving motors (14) are concentrically connected with the rotating discs (15) through the side wall of the dust suction box (7), the two rotating discs (15) are eccentrically and rotatably connected with one end of the driving rods (16), the other end of the driving rods (16) is rotatably connected with one end of the pushing rods (17), the other end of the pushing rods (17) is in contact with one end of the filtering baffle net (11), the pushing rods (17) are slidably arranged on the fixing rings (18), and the fixing rings (18) are fixedly connected with the inner side wall of the dust suction box (7) respectively.

6. A cement clinker unloader according to claim 3, wherein the inner wall of the dust fall pipe (9) is fixedly provided with two dust-blocking plates (19), and the two dust-blocking plates (19) are arranged in a tilted and staggered manner.