Cleaning control system for preventing clinker accumulation in grate cooler

Abstract

The invention discloses a cleaning control system for preventing clinker accumulation in a grate cooler, and belongs to the technical field of cement production equipment grate coolers. Comprising a shell and a grate bed, a clinker discharging port is formed in the upper portion of the left side of the shell, the grate bed is arranged in the shell, a fan device is arranged below the grate bed, the sickle wheel cleaning device is arranged in the shell and is close to the clinker discharging port, and the sickle wheel cleaning device comprises a pair of grate bed sliding rails which are arranged in parallel at intervals; the grate bed sliding rails are arranged above the grate bed in a front-back parallel and spaced mode, a pair of sliding bases are symmetrically arranged on the grate bed sliding rails in a sliding mode, one sliding base in the pair of sliding bases is connected with one end of a sickle wheel rotating shaft, a plurality of sickle wheels are arranged on the sickle wheel rotating shaft in a penetrating mode at intervals, and the sickle wheels are connected with the sickle wheel rotating shaft in a sliding mode. The rotation direction of the sickle wheel is opposite to the sickle bending direction, and the other end of the sickle wheel rotating shaft is in transmission connection with a sickle wheel motor. The device has the advantages of high automation control capability, environmental protection, energy conservation, safety and convenience.

Description

Technical Field

[0001] The invention belongs to the technical field of grate coolers of cement production equipment, and in particular relates to a cleaning control system for preventing clinker accumulation inside a grate cooler. Background Art

[0002] The grate cooler is a key equipment in the clinker burning system during the cement processing and production process. Its main function is to cool and transport the cement clinker. At the same time, it provides hot air for the rotary kiln and decomposition furnace, and is the main equipment for the burning system and heat recovery. In the actual use of the cement kiln grate cooler, since the cement clinker is transported in sections and stages during the transportation process, and the cement is prone to partial aggregation during the rapid cooling process, the cement kiln grate cooler is prone to clinker accumulation due to its transportation structure and cement aggregation during the transportation process, commonly known as "building snowmen". The clinker that cannot be transported away is accumulated under the rotary kiln cylinder on the front wall of the grate cooler. This part of the clinker accumulates higher and higher. In severe cases, it blocks the kiln mouth and makes it impossible to discharge the clinker in the kiln. The clinker accumulation will have an adverse effect on the thermal efficiency of the grate cooler and the quality of the clinker.

[0003] Clinker accumulation is prone to occur under the feed port of the grate cooler due to various reasons. If not handled in time or incorrectly, the clinker will pile up higher and higher until it reaches the kiln port, eventually causing the entire grate cooling system to fail to operate normally and requiring the kiln to be shut down for treatment, resulting in huge economic losses for the cement plant. The treatment of clinker accumulation is difficult and was initially handled manually, which can easily cause personal injury during the process. Most of the existing material pile unblocking devices used in cement kiln grate coolers are based on the pneumatic impact of manual air cannons or the impact force of high-pressure water guns to achieve the unblocking effect. The degree of automation is not high. When faced with large-scale agglomerated and blocked materials, the implementation efficiency of manual air cannons and high-pressure water guns is low, the work is highly dangerous, and the controllability of the implementation range is poor. In the uninterrupted operation of the cement kiln grate cooler, the material pile situation is prone to worsening, so that the line needs to be stopped for processing.

[0004] In view of the above-mentioned prior art, it is necessary to improve the structure of the existing grate cooler by automation. To this end, the applicant has made a useful design, and the technical solution to be introduced below is produced in this context. Summary of the invention

[0005] The purpose of the present invention is to provide a cleaning control system for preventing clinker accumulation inside a grate cooler, which has a high degree of automation, reduces the labor intensity of workers, and is energy-saving and environmentally friendly.

[0006] The object of the present invention is achieved in this way. A cleaning control system for preventing clinker accumulation inside a grate cooler comprises a shell and a grate bed. The shell is provided with a primary air recovery port, a secondary air recovery port and a tertiary air recovery port from left to right at the top. The shell is provided with a clinker discharge port at the upper left side. The grate bed is arranged in the shell. A fan device is arranged below the grate bed. The grate bed also comprises a sickle wheel cleaning device and a camera device. The sickle wheel cleaning device is arranged in the shell near the clinker discharge port and comprises a pair of grate bed slide rails arranged in parallel and spaced apart. The pair of grate bed slide rails are arranged in parallel and spaced apart front and back above the grate bed. A pair of sliding bases are symmetrically slidably arranged on the pair of grate bed slide rails. One of the sliding bases is a sliding base. An air cannon with adjustable impact direction is arranged on the moving base, and the sliding base is also connected to one end of a sickle wheel shaft, and a plurality of sickle wheels are arranged on the sickle wheel shaft at intervals, and the steering direction of the sickle wheel is opposite to the bending direction of the sickle, and the other end of the sickle wheel shaft is connected to the sickle wheel motor transmission, and the sickle wheel motor is arranged on the top of the other sliding base in a pair of sliding bases, and the grate bed slide rail is provided with a guide rail baffle at one end in the length direction to prevent the sliding base from detaching from the grate bed slide rail, and the guide rail baffle is connected to the sliding base through a baffle spring, and the camera device is arranged on the top of the shell and close to the clinker discharge port, and is used for real-time monitoring of the clinker stacking height and transmitting signals to the sickle wheel cleaning device.

[0007] In a specific embodiment of the present invention, at least one wind chamber is provided below the grate bed, and a plurality of fan devices are arranged in the wind chamber, and the air outlets of each fan device are respectively directed to the primary air recovery port, the secondary air recovery port and the tertiary air recovery port.

[0008] In another specific embodiment of the present invention, the primary air recovery port is connected to a heat recovery power generation device, the secondary air recovery port is connected to a post-grinding blowing device, and the tertiary air recovery port is connected to an environmental dust removal device.

[0009] In another specific embodiment of the present invention, the air cannon includes an air cannon support frame and an air cannon steering base, the bottom of the air cannon support frame is connected to the sliding base, the air cannon steering base is arranged on the top of the air cannon support frame, and the air cannon is connected to the air cannon steering base.

[0010] In another specific embodiment of the present invention, a rotating shaft support seat is provided at the top end of one of the pair of sliding bases for supporting one end of the sickle wheel rotating shaft, and the sickle wheel rotating shaft is connected to an elastic coupling at the other end, and the elastic coupling is connected to the sickle wheel motor.

[0011] In another specific embodiment of the present invention, a slide rail motor is provided at the other end of the grate bed slide rail relative to the guide rail baffle, the sliding base is connected to the slide rail motor through a ball screw, the slide rail motor is connected to the motor support seat through a ball bearing, and the motor support seat is fixed on the grate bed slide rail.

[0012] In a further specific embodiment of the present invention, the clinker discharge port discharges the clinker in the rotary kiln onto a grate bed.

[0013] In a further specific embodiment of the present invention, the camera device is a high-temperature explosion-proof camera device.

[0014] Due to the adoption of the above structure, the present invention has the following beneficial effects compared with the prior art: firstly, the camera sensing device and the sickle wheel cleaning device are used in combination to monitor the clinker pile height in real time. When the pile appears and reaches a certain height, the sickle wheel cleaning device is started, which has a high degree of automatic control capability and saves energy. It does not run unless necessary, which is environmentally friendly and energy-saving; secondly, the rotation direction of the sickle wheel is opposite to the bending direction of the sickle, and the pile is shoveled upward and backward, which can avoid the secondary accumulation of clinker; thirdly, when the sickle wheel impacts the pile, the lower guide rail baffle is used to The baffle spring on the sliding base can effectively prevent the sliding base from suddenly stopping, thereby extending the service life of the grate bed slide rail and the sickle wheel; fourthly, a steerable air cannon is arranged on the side of the sickle wheel to clean the deposits adhering to the sickle wheel and extend the service life of the sickle wheel; fifthly, through the coordinated movement of the horizontal sickle wheel and the longitudinal slide rail, the pile of materials can be cleaned thoroughly and efficiently, avoiding manual operation, which is safe and convenient; sixthly, the entire device is easy to install and move, with low cost and low failure rate, which greatly facilitates the complicated cleaning of clinker accumulation and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the sickle wheel cleaning device of the present invention.

[0016] In the figure: 1. shell, 11. primary air recovery port, 12. secondary air recovery port, 13. tertiary air recovery port, 14. feed port; 2. grate bed; 3. fan device; 4. sickle wheel cleaning device, 41. grate bed slide rail, 42. sliding base, 421. rotating shaft support seat, 422. ball screw, 43. air cannon, 431. air cannon support frame, 432. air cannon steering base, 44. sickle wheel rotating shaft, 441. elastic coupling, 45. sickle wheel, 46. sickle wheel motor, 47. guide rail baffle, 48. baffle spring, 49. slide rail motor, 491. ball bearing, 492. motor support seat; 5. camera device. DETAILED DESCRIPTION

[0017] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0018] In the following description, all concepts related to directionality (or orientation) such as up, down, left, right, front and back are referring to the position state of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be understood as special limitations on the technical solution provided by the present invention.

[0019] See Figure 1 The present invention relates to a cleaning control system for preventing clinker accumulation inside a grate cooler, comprising a shell 1 and a grate bed 2 arranged in the shell 1. The shell 1 is provided with a primary air recovery port 11, a secondary air recovery port 12 and a tertiary air recovery port 13 from left to right at the top, wherein the primary air recovery port 11 is connected to a heat recovery power generation device, the secondary air recovery port 12 is connected to a post-grinding air blowing device, and the tertiary air recovery port 13 is connected to an environmental dust removal device. At least one air chamber is provided below the grate bed 2, and a plurality of fan devices 3 are provided in the air chamber, and the air outlets of each fan device 3 are respectively facing the primary air recovery port 11, the secondary air recovery port 12 and the tertiary air recovery port 13. This embodiment illustrates that three fan devices 3 are provided in one air chamber. The shell 1 is provided with a clinker discharge port 14 at the upper left side, and the clinker discharge port 14 is used to unload the clinker in the rotary kiln onto the grate bed 2.

[0020] See Figure 2 , and combined with Figure 1 The present invention further comprises a sickle wheel cleaning device 4, which is arranged in the housing 1 near the clinker discharge port 14 and comprises a pair of grate bed slide rails 41 arranged in parallel and spaced apart. Figure 1As shown, the pair of grate bed slide rails 41 are arranged parallel and spaced above the grate bed 2. A pair of sliding bases 42 are symmetrically slidably arranged on the pair of grate bed slide rails 41. An air cannon 43 with adjustable impact direction is arranged on one of the pair of sliding bases 42. The air cannon 43 includes an air cannon support frame 431 and an air cannon steering base 432. The bottom of the air cannon support frame 431 is connected to the sliding base 42. The air cannon steering base 432 is arranged on the top of the air cannon support frame 431. The air cannon 43 is connected to the air cannon steering base 432. The air cannon steering base 432 can rotate in real time to adjust the impact direction of the air cannon 43. The top of the side sliding base 42 is provided with a shaft support seat 421 for supporting one end of a sickle wheel shaft 44. A plurality of sickle wheels 45 are arranged on the sickle wheel shaft 44 at intervals. The other end of the sickle wheel shaft 44 is connected to a sickle wheel motor 46 through an elastic coupling 441. The sickle wheel motor 46 is arranged on the top of the other sliding base 42 in the pair of sliding bases 42. The air cannon 43 is used to clean the deposits adhering to the sickle wheel 45 to extend the service life of the sickle wheel 45.

[0021] Furthermore, the grate bed slide rail 41 is provided with a guide rail baffle 47 at one end in the length direction to prevent the sliding base 42 from detaching from the grate bed slide rail 41 when cleaning the pile. The guide rail baffle 47 is connected to the sliding base 42 through a baffle spring 48, and the baffle spring 48 is used to buffer the sudden collision of the sliding base 42 with the guide rail baffle 47 caused by the impact of the sickle wheel 45 on the resistance of the pile, thereby extending the service life of the grate bed slide rail 41 and the sickle wheel 45. The grate bed slide rail 41 is provided with a slide rail motor 49 at the other end relative to the guide rail baffle 47, and the sliding base 42 is connected to the slide rail motor 49 through a ball screw 422, and the slide rail motor 49 is connected to the motor support seat 492 through a ball bearing 491, and the motor support seat 492 is fixed on the grate bed slide rail 41.

[0022] See Figure 1 In this embodiment, the sickle wheels 45 arranged at intervals in the longitudinal direction and the grate bed slide rails 41 extending in the transverse direction cooperate to cut and impact the accumulated clinker, which greatly facilitates the complicated cleaning process of the accumulated clinker. This structure can thoroughly and efficiently complete the cleaning of the clinker.

[0023] See you next time Figure 1The present invention also includes a high-temperature explosion-proof camera device 5, which is arranged on the top of the shell 1 and close to the clinker discharge port 14. The detection direction points to the clinker accumulation place, which is used to monitor the accumulation height of the clinker in real time and transmit signals to the sickle wheel cleaning device 4. When the accumulated clinker appears and reaches a certain height, the sickle wheel cleaning device 4 is started, and the clinker is cleared by the sickle wheel 45. This solution has a high degree of automated control capability, saves energy, does not run unless necessary, and is environmentally friendly and energy-saving. In order to avoid secondary accumulation of clinker, the steering direction of the sickle wheel 45 is opposite to the bending direction of the sickle, that is, the sickle wheel 45 rotates in the opposite direction to shovel the clinker upward and backward. In this embodiment, the camera device 5 adopts the NK-YN-Q5 series high-temperature special detector to detect the height of the accumulated clinker.

Claims

1. A cleaning control system for preventing clinker accumulation inside a grate cooler, comprising a housing (1) and a grate bed (2), wherein the housing (1) is provided with a primary air recovery port (11), a secondary air recovery port (12) and a tertiary air recovery port (13) from left to right at the top, and the housing (1) is provided with a clinker discharge port (14) at the upper left side, the grate bed (2) is arranged inside the housing (1), and a fan device (3) is arranged below the grate bed (2), characterized in that: The invention also comprises a sickle wheel cleaning device (4) and a camera device (5). The sickle wheel cleaning device (4) is arranged in the housing (1) near the clinker discharge port (14), and comprises a pair of grate bed slide rails (41) arranged in parallel and spaced apart. The pair of grate bed slide rails (41) are arranged in parallel and spaced apart above the grate bed (2). A pair of sliding bases (42) are symmetrically slidably arranged on the pair of grate bed slide rails (41). An air cannon (43) with adjustable impact direction is arranged on one sliding base (42) of the pair of sliding bases (42). The sliding base (42) is also connected to one end of a sickle wheel rotating shaft (44). A plurality of sickle wheels (45) are spaced apart on the sickle wheel rotating shaft (44). The direction of rotation of the knife wheel (45) is opposite to the bending direction of the sickle. The other end of the sickle wheel shaft (44) is connected to the sickle wheel motor (46) in a transmission manner. The sickle wheel motor (46) is arranged on the top of the other sliding base (42) in a pair of sliding bases (42). The grate bed slide rail (41) is provided with a guide rail baffle (47) at one end in the length direction to prevent the sliding base (42) from detaching from the grate bed slide rail (41). The guide rail baffle (47) is connected to the sliding base (42) through a baffle spring (48). The camera device (5) is arranged on the top of the shell (1) and close to the clinker discharge port (14) for real-time monitoring of the clinker stacking height and transmitting signals to the sickle wheel cleaning device (4).

2. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: At least one wind chamber is arranged below the grate bed (2), and a plurality of fan devices (3) are arranged in the wind chamber, and the air outlets of the fan devices (3) are respectively directed toward the primary air recovery port (11), the secondary air recovery port (12), and the tertiary air recovery port (13).

3. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: The primary air recovery port (11) is connected to a heat recovery power generation device, the secondary air recovery port (12) is connected to a post-grinding air blowing device, and the tertiary air recovery port (13) is connected to an environmental dust removal device.

4. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: The air cannon (43) comprises an air cannon support frame (431) and an air cannon steering base (432), the bottom of the air cannon support frame (431) is connected to the sliding base (42), the air cannon steering base (432) is arranged on the top of the air cannon support frame (431), and the air cannon steering base (432) is connected to the air cannon (43).

5. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: A rotating shaft support seat (421) is provided at the top end of one of the pair of sliding bases (42) for supporting one end of the sickle wheel rotating shaft (44); the sickle wheel rotating shaft (44) is connected to an elastic coupling (441) at the other end; and the elastic coupling (441) is connected to the sickle wheel motor (46).

6. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: The grate bed slide rail (41) is provided with a slide rail motor (49) at the other end relative to the guide rail baffle (47); the sliding base (42) is connected to the slide rail motor (49) via a ball screw (422); the slide rail motor (49) is connected to a motor support seat (492) via a ball bearing (491); and the motor support seat (492) is fixed on the grate bed slide rail (41).

7. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: The clinker discharge port (14) discharges the clinker in the rotary kiln onto the grate bed (2).

8. A cleaning control system for preventing clinker accumulation inside a grate cooler according to claim 1, characterized in that: The camera device (5) is a high-temperature explosion-proof camera device.

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