A snowman pushing device for a grate cooler

Abstract

The utility model relates to cement production equipment technical field especially relates to a push snowman device for grate cooler, it aims at solving the technical problem of related art because of adopting the push material mode of installing in fixed grate bed entrance end and outward overhanging arm lever, because of the common effect of high temperature and cantilever stress leading to deflection deformation, thereby make the effective stroke be limited, cannot cover the full length of fixed grate bed, and further cause the middle and distal end material accumulation technical problem. The push snowman device for grate cooler replaces the original entrance fixed grate bed through the first push material assembly and the second push material assembly of alternate setting, and then realizes the relay transmission of material through the alternate push material of first push material board and second push material board, thereby effectively covers the full length. Overcome the existing push snowman device because of adopting the push material mode of installing in fixed grate bed entrance end and outward overh hanging arm lever, because of the common effect of high temperature and cantilever stress leading to defl ection deformation, thereby make the effective stroke be limited, cannot cover the full length of fixed grate bed and further cause the middle and distal end material accumulation technical problem.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, and in particular to a snowplow device for a grate cooler. Background Technology

[0002] Due to multiple factors such as the stability of the calcination system equipment, raw material composition, fuel calorific value stability, and process operation, large clumps of clinker easily accumulate at the fixed inlet grate, unable to move downwards by cold air and gravity, forming a "snowman" effect. To address this problem, existing solutions typically install a "snowman pusher" device above the fixed grate, using outward-extending arms to push away the retained material. However, due to the combined effects of high temperature and the forces on the cantilever, the cantilever portion of the snowman pusher device is prone to deflection and deformation, resulting in a shortened effective pushing stroke. This prevents it from covering the entire length of the fixed grate, leading to material accumulation in the middle and far ends, hindering the smooth flow of subsequent materials, and ultimately affecting production efficiency.

[0003] The existing snowplow device has a technical problem: it uses a pushing method that involves installing a cantilever arm at the inlet end of a fixed grate bed and extending it outwards. Due to the combined effect of high temperature and the stress on the cantilever arm, the deflection deformation occurs, which limits the effective stroke and makes it impossible to cover the entire length of the fixed grate bed. This results in material accumulation in the middle and far ends. Utility Model Content

[0004] The purpose of this utility model is to provide a snow pusher device for a grate cooler, in order to solve the technical problem in the related technology that the material pushing method, which is installed at the inlet end of the fixed grate bed and extends outward with a cantilever arm, causes deflection due to the combined effect of high temperature and cantilever force, thus limiting the effective stroke and making it impossible to cover the entire length of the fixed grate bed, resulting in material accumulation in the middle and far ends.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The snowplow device for a grate cooler provided by this utility model includes:

[0007] The rotary kiln comprises a stepped mounting frame, a first pushing assembly, and a second pushing assembly. The first pushing assembly includes a pusher plate unit that can switch between an extended and a retracted state. The process of the pusher plate unit switching from the retracted state to the extended state and back to the retracted state constitutes one pushing action. The first and second pushing assemblies have identical structures, with the pusher plate units of the first and second pushing assemblies being a first pushing plate and a second pushing plate, respectively. The stepped mounting frame is installed at the rotary kiln outlet. The first and second pushing assemblies are alternately arranged along the oblique extension direction of the stepped mounting frame, so that the pusher plate units in the retracted state are stacked sequentially to form a stepped inclined grate bed, replacing the fixed inlet grate bed. The pushing action of the first pushing plate is used to clear material remaining on the second pushing plate, and the pushing action of the second pushing plate is used to clear material remaining on the first pushing plate. The first and second pushing plates alternately perform pushing actions to convey material and prevent material accumulation on the inclined grate bed.

[0008] Specifically, the first pushing assembly further includes a sliding frame and a drive unit. The conveying direction is away from the rotary kiln outlet. The sliding frame includes a slide rail and a sliding seat. The pusher unit is mounted on the sliding seat, and the sliding seat is slidably connected to the slide rail along the conveying direction. The drive unit drives the sliding seat to slide along the slide rail, thereby realizing the pushing action.

[0009] Specifically, the drive unit includes a slotted plate and an eccentric drive component. The slotted plate is mounted on the sliding seat and has a sliding groove. The eccentric drive component is rotatably mounted on the slide rail seat and has an eccentric column inserted into the sliding groove. The rotation of the eccentric drive component drives the sliding seat to slide through the cooperation of the eccentric column and the sliding groove.

[0010] Specifically, the drive unit further includes a motor and a planetary reducer. The motor is mounted at the end of the eccentric drive member away from the slot plate, and drives the eccentric drive member to rotate through the torque amplification effect of the planetary reducer.

[0011] Specifically, the slide rail base includes a guide shaft and a fixed base, and the slide base includes a slider, which is connected to the push plate unit. The guide shaft is arranged along the conveying direction and is fixedly installed on the fixed base, and the slider is sleeved on and slides on the guide shaft.

[0012] Specifically, the inner wall of the slider is also provided with a sliding sleeve to reduce friction with the guide shaft.

[0013] Specifically, the pusher unit includes a grate plate, the top surface of which is designated as a first working surface, and the end face of the grate plate away from the rotary kiln outlet is designated as a second working surface. The first working surfaces, in their retracted state, are sequentially assembled to form the working surface of the inclined grate bed. The second working surfaces, in their extended state, are pushed out axially along the conveying direction to push away the material accumulated on the first working surfaces.

[0014] Specifically, the first working surface is designed with a wavy, undulating shape, while maintaining a natural discharge slope that is higher at the front and lower at the back along the conveying direction. The longitudinal grooves formed by the alternating crests and troughs are used to disperse airflow and increase the heat exchange area. The natural discharge slope is used to assist the material in sliding along the conveying direction.

[0015] Specifically, the multiple grates are arranged linearly along the direction perpendicular to the extension direction.

[0016] Specifically, it also includes a controller, which is connected to the first pusher component and the second pusher component respectively, and is used to trigger the pushing action of the first pusher component and the second pusher component at preset working parameters.

[0017] Based on the above technical solutions, the beneficial effects of this utility model are analyzed as follows:

[0018] This utility model provides a snowplow device for a grate cooler, comprising:

[0019] The rotary kiln comprises a stepped mounting frame, a first pushing assembly, and a second pushing assembly. The first pushing assembly includes a pusher plate unit that can switch between an extended and a retracted state. The process of the pusher plate unit switching from the retracted state to the extended state and back to the retracted state constitutes one pushing action. The first and second pushing assemblies have identical structures, with the pusher plate units of the first and second pushing assemblies being a first pushing plate and a second pushing plate, respectively. The stepped mounting frame is installed at the rotary kiln outlet. The first and second pushing assemblies are alternately arranged along the oblique extension direction of the stepped mounting frame, so that the pusher plate units in the retracted state are stacked sequentially to form a stepped inclined grate bed, replacing the fixed inlet grate bed. The pushing action of the first pushing plate is used to clear material remaining on the second pushing plate, and the pushing action of the second pushing plate is used to clear material remaining on the first pushing plate. The first and second pushing plates alternately perform pushing actions to convey material and prevent material accumulation on the inclined grate bed.

[0020] In practical applications, the stepped mounting frame, the first pushing assembly, and the second pushing assembly are combined to form a stepped inclined grate bed, replacing the original fixed inlet grate bed. In the retracted state, normal material discharge occurs. The first pushing plate and the second pushing plate alternately push material; the pushing action of the first pushing plate clears material remaining on the second pushing plate, and the pushing action of the second pushing plate clears material remaining on the first pushing plate.

[0021] As can be seen, compared with the existing technology, this snowplow device for a grate cooler replaces the original fixed grate bed at the inlet with alternating first and second pushing components. The material is then relayed and conveyed through the alternating pushing of the first and second pushing plates, effectively covering the entire length. This overcomes the technical problem of existing snowplow devices, which use a pushing method with an outwardly extending arm installed at the inlet end of the fixed grate bed. The combined effect of high temperature and the stress on the cantilever causes deflection deformation, limiting the effective stroke and preventing the device from covering the entire length of the fixed grate bed, thus leading to material accumulation in the middle and far ends. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall installation structure of the snow pusher device for a grate cooler provided in this embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the combined structure of the first and second pusher components in the retracted state.

[0025] Figure 3 This is a schematic diagram of the combined structure of the first pusher component in its extended state;

[0026] Figure 4 This is a schematic diagram of the combined structure of the second pusher component in the extended state;

[0027] Figure 5 This is a schematic diagram of the first pusher assembly in its retracted state;

[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the first feeding component in the retracted state;

[0029] Figure 7 This is a schematic diagram showing the connection between the first feeding component and the control box.

[0030] icon:

[0031] 100. Ladder mounting bracket;

[0032] 200. First pusher assembly;

[0033] 210. Push plate unit; 211. Grate plate; 204. First working surface; 205. Second working surface; 220. Sliding frame; 221. Slide rail seat; 2211. Guide shaft; 2212. Fixed seat; 222. Sliding seat; 2221. Slider; 203. Sliding sleeve; 230. Drive unit; 231. Slot plate; 201. Sliding slot; 232. Eccentric drive component; 202. Eccentric column; 233. Motor; 234. Planetary reducer;

[0034] 300. Second pusher assembly;

[0035] 400. Controller. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] The existing snowplow device has a technical problem: it uses a pushing method that involves installing a cantilever arm at the inlet end of a fixed grate bed and extending it outwards. Due to the combined effect of high temperature and the stress on the cantilever arm, the deflection deformation occurs, which limits the effective stroke and makes it impossible to cover the entire length of the fixed grate bed. This results in material accumulation in the middle and far ends.

[0040] In view of this, the present invention provides a snowplow device for a grate cooler, comprising:

[0041] The rotary kiln comprises a stepped mounting frame 100, a first pushing assembly 200, and a second pushing assembly 300. The first pushing assembly 200 includes a pusher plate unit 210, which can switch between an extended state and a retracted state. The process of the pusher plate unit 210 switching from a retracted state to an extended state and back to a retracted state constitutes one pushing action. The first pushing assembly 200 and the second pushing assembly 300 have identical structures, with the pusher plate units 210 of the first pushing assembly 200 and the second pushing assembly 300 being the first pushing plate and the second pushing plate, respectively. The stepped mounting frame 100 is installed at the rotary kiln outlet. The first pushing assembly 200 and the second pushing assembly 300 are alternately arranged along the oblique extension direction of the stepped mounting frame 100, so that the pusher plate units 210 in the retracted state are stacked sequentially to form a stepped oblique grate bed, replacing the fixed inlet grate bed. The pushing action of the first pushing plate is used to clear the material remaining on the second pushing plate, and the pushing action of the second pushing plate is used to clear the material remaining on the first pushing plate. The first and second pusher plates alternately push materials to prevent them from accumulating on the inclined grate.

[0042] In summary, the snow pusher device for a grate cooler provided by this utility model can achieve the following technical effects:

[0043] This snowplow device for a grate cooler replaces the original fixed inlet grate with alternating first and second pushing components 200 and 300. The alternating pushing of the first and second pushing plates achieves relay-transfer of materials, effectively covering the entire length. This overcomes the technical problem of existing snowplow devices, which use a pushing method with an outwardly extending arm installed at the inlet end of the fixed grate. The combined effect of high temperature and cantilever stress causes deflection and deformation, limiting the effective stroke and preventing full coverage of the fixed grate, thus leading to material accumulation in the middle and far ends.

[0044] The following combination Figures 1 to 7 The structure and shape of the snowplow device for a grate cooler provided in this embodiment will be described in detail:

[0045] Regarding the structural composition of the first pusher assembly 200, specifically:

[0046] The first feeding assembly 200 also includes a sliding frame 220 and a drive unit 230. The conveying direction is away from the rotary kiln outlet. The sliding frame 220 includes a slide rail seat 221 and a sliding seat 222. A pusher plate unit 210 is mounted on the sliding seat 222, and the sliding seat 222 is slidably connected to the slide rail seat 221 along the conveying direction. The drive unit 230 drives the sliding seat 222 to slide along the slide rail seat 221 to achieve the feeding action.

[0047] Specifically, regarding how the drive unit 230 drives the sliding seat 222 to slide along the slide rail seat 221:

[0048] The drive unit 230 includes a slotted plate 231 and an eccentric drive component 232. The slotted plate 231 is mounted on the sliding seat 222 and has a sliding groove 201. The eccentric drive component 232 is rotatably mounted on the slide rail seat 221 and has an eccentric column 202 inserted into the sliding groove 201. The rotation of the eccentric drive component 232 drives the sliding seat 222 to slide through the cooperation of the eccentric column 202 and the sliding groove 201. The reduced working stroke and compact built-in layout help reduce space occupation, making the equipment occupy a small area and meeting the miniaturization requirements of the new grate cooler.

[0049] In this embodiment, the drive unit 230 further includes a motor 233 and a planetary reducer 234. The motor 233 is mounted on the end of the eccentric drive member 232 away from the slot plate 231, and drives the eccentric drive member 232 to rotate through the torque amplification effect of the planetary reducer 234. By using the precise motion control of the motor 233 and the high torque output of the planetary reducer 234, the traditional hydraulic drive is replaced, avoiding the inherent defects of hydraulic systems such as low efficiency, slow response, and difficult maintenance.

[0050] Specifically, regarding the composition of slide rail 221 and slide block 222:

[0051] The slide rail base 221 includes a guide shaft 2211 and a fixed base 2212. The slide base 222 includes a slider 2221, which is connected to the push plate unit 210. The guide shaft 2211 is arranged along the conveying direction and is fixedly installed on the fixed base 2212. The slider 2221 is sleeved on and slides on the guide shaft 2211.

[0052] In order to reduce the sliding resistance of the slider 2221 along the guide shaft 2211, in this embodiment, the inner wall of the slider 2221 is also provided with a sliding sleeve 203 to reduce the friction between it and the guide shaft 2211.

[0053] Regarding the structural composition of the pusher unit 210, specifically:

[0054] The pusher unit 210 includes a grate 211. The top surface of the grate 211 is designated as a first working surface 204, and the end face of the grate 211 away from the rotary kiln outlet is designated as a second working surface 205. In the retracted state, the first working surfaces 204 are sequentially assembled to form the working surface of the inclined grate bed. In the extended state, the second working surfaces 205 are pushed out axially along the conveying direction to push away the material accumulated on the first working surfaces 204.

[0055] In this embodiment, the first working surface 204 is configured with a wavy, undulating shape, while maintaining a natural discharge slope that is higher at the front and lower at the back along the conveying direction. The longitudinal grooves formed by the alternating crests and troughs are used to disperse the airflow and increase the heat exchange area. The natural discharge slope is used to assist the material in sliding along the conveying direction.

[0056] In order to improve the working efficiency of motor 233 and avoid wasting the power of drive unit 230, in this embodiment, multiple grates 211 are arranged linearly along the vertical direction of the extension direction.

[0057] In order to achieve automatic control of the triggering interval and timing of the first pusher component 200 and the second pusher component 300, the scheme of this embodiment also includes a controller 400. The controller 400 is connected to the first pusher component 200 and the second pusher component 300 for control, and is used to trigger the pushing action of the first pusher component 200 and the second pusher component 300 at preset working parameters.

[0058] In summary, the specific working process of the snowplow device for the grate cooler provided in this embodiment is as follows:

[0059] Taking the initial state of both the first pusher assembly 200 and the second pusher assembly 300 as an example;

[0060] The stepped mounting frame 100 is installed at the rotary kiln outlet. The first pusher assembly 200 and the second pusher assembly 300 are alternately arranged along the oblique extension direction of the stepped mounting frame 100 so that each pusher plate unit 210 is stacked in sequence to form a stepped inclined grate bed, which replaces the original inlet fixed grate bed and discharges material normally.

[0061] The controller 400 is connected to the motors 233 of the first pusher assembly 200 and the second pusher assembly 300, respectively, and the controller 400 inputs the working parameters. The controller 400 triggers the pushing action of the first pusher assembly 200 and the second pusher assembly 300 at preset working parameters.

[0062] The motor 233 drives the eccentric drive component 232 to rotate through the planetary reducer 234, which drives the eccentric column 202 to slide in the sliding groove 201, and drives the sliding seat 222 and the grate plate 211 to extend and retract along the conveying direction to complete the pushing action.

[0063] The pushing action of the first pusher plate is used to clear the material remaining on the second pusher plate, and the pushing action of the second pusher plate is used to clear the material remaining on the first pusher plate. The alternating pushing actions of the first and second pusher plates are superimposed to achieve relay conveying of materials covering the entire length of the inclined grate bed, avoiding the accumulation and retention of materials.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A snowplow device for a grate cooler, characterized in that, include: The stepped mounting bracket (100), the first pusher assembly (200), and the second pusher assembly (300) are provided. The first pusher assembly (200) includes a pusher plate unit (210), which can switch between an extended state and a retracted state. The process of the pusher plate unit (210) switching from a retracted state to an extended state and then back to a retracted state is one pusher action. The first pusher assembly (200) and the second pusher assembly (300) have the same structure, and the pusher plate unit (210) of the first pusher assembly (200) and the second pusher assembly (300) are respectively the first pusher plate and the second pusher plate; The stepped mounting frame (100) is installed at the rotary kiln outlet. The first pusher assembly (200) and the second pusher assembly (300) are alternately arranged along the oblique extension direction of the stepped mounting frame (100) so that each pusher plate unit (210) in the retracted state is stacked in sequence to form a stepped oblique grate bed, which replaces the inlet fixed grate bed. The pushing action of the first pusher plate is used to clear the material remaining on the second pusher plate, and the pushing action of the second pusher plate is used to clear the material remaining on the first pusher plate. The first pusher plate and the second pusher plate alternately push the material to transport it and prevent the material from accumulating on the inclined grate bed.

2. The snowplow device for a grate cooler according to claim 1, characterized in that: The first pusher assembly (200) also includes a sliding frame (220) and a drive unit (230); The conveying direction is the direction away from the rotary kiln outlet; The sliding frame (220) includes a slide rail seat (221) and a sliding seat (222). The push plate unit (210) is mounted on the sliding seat (222). The sliding seat (222) is slidably connected to the slide rail seat (221) along the conveying direction. The driving unit (230) drives the sliding seat (222) to slide along the slide rail seat (221) to realize the pushing action.

3. The snowplow device for a grate cooler according to claim 2, characterized in that: The drive unit (230) includes a slotted plate (231) and an eccentric drive component (232); The groove plate (231) is installed on the sliding seat (222) and has a sliding groove (201); The eccentric drive component (232) is rotatably mounted on the slide rail seat (221) and is provided with an eccentric column (202) inserted into the sliding groove (201). The rotation of the eccentric drive (232) is used to drive the sliding seat (222) to slide through the cooperation of the eccentric column (202) and the sliding groove (201).

4. The snowplow device for a grate cooler according to claim 3, characterized in that: The drive unit (230) also includes a motor (233) and a planetary reducer (234). The motor (233) is installed at the end of the eccentric drive (232) away from the slot plate (231), and drives the eccentric drive (232) to rotate through the torque amplification effect of the planetary reducer (234).

5. The snowplow device for a grate cooler according to claim 2, characterized in that: The slide rail base (221) includes a guide shaft (2211) and a fixed base (2212), and the sliding base (222) includes a slider (2221), which is connected to the push plate unit (210); The guide shaft (2211) is arranged along the conveying direction and is fixedly installed on the fixed base (2212). The slider (2221) is sleeved on and slides on the guide shaft (2211).

6. The snowplow device for a grate cooler according to claim 5, characterized in that: The inner wall of the slider (2221) is also provided with a sliding sleeve (203) to reduce friction with the guide shaft (2211).

7. The snowplow device for a grate cooler according to claim 2, characterized in that: The pusher unit (210) includes a grate (211), the top surface of which is set as a first working surface (204), and the end face of which is away from the rotary kiln outlet is set as a second working surface (205). Each of the first working surfaces (204) is sequentially spliced ​​together in the retracted state to form the working surface of the inclined grate bed; Each of the second working surfaces (205) extends axially along the conveying direction in the extended state to push away the material accumulated on the first working surface (204).

8. The snowplow device for a grate cooler according to claim 7, characterized in that: The first working surface (204) is set to be wavy and uneven, while maintaining a natural unloading slope that is higher in the front and lower in the back along the conveying direction; The alternating crests and troughs of the longitudinal grooves are used to disperse airflow and increase the heat exchange area; The natural discharge slope is used to assist the material in sliding along the conveying direction.

9. The snowplow device for a grate cooler according to claim 7, characterized in that: The multiple grates (211) are arranged linearly in the direction perpendicular to the extension direction.

10. The snowplow device for a grate cooler according to claim 1, characterized in that: It also includes a controller (400), which is connected to the first pusher component (200) and the second pusher component (300) respectively, and is used to trigger the pushing action of the first pusher component (200) and the second pusher component (300) at timed intervals according to preset working parameters.

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