Auxiliary discharging device with stirring teeth

Abstract

The utility model discloses an auxiliary discharging device with stirring teeth, and belongs to the technical field of discharging of rotary kilns. The discharging device comprises a discharging cavity, a bearing seat is installed on one side of the discharging cavity, a main shaft driving device is installed on the other side of the discharging cavity, a main shaft which is horizontally arranged and penetrates through the discharging cavity is in transmission connection between the bearing seat and the main shaft driving device, and stirring teeth are arranged on the main shaft in the length direction of the main shaft. The stirring teeth on one side of the main shaft are spirally arranged around the main shaft, and the stirring teeth on the other side of the main shaft are uniformly distributed around the main shaft in a staggered manner. The arch breaking structure is specially designed aiming at the non-uniform blanking condition of the rotary kiln, so that materials can be uniformly distributed on the whole arch breaking structure, and the arch breaking effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rotary kiln discharging technology field more specifically, relate to a kind of auxiliary discharging device of stirring tooth. BACKGROUND

[0002] In the field of rotary kiln equipment production, a large amount of material is usually transported to the next device after passing through the rotary body. At this time, it is necessary to ensure the smoothness of the discharging structure, otherwise it is easy to cause arching and material accumulation, affecting the subsequent process.

[0003] Currently, the popular discharging device on the market mainly uses fluidizer arch breaking, rotary valve conveying, conveyor and other methods. However, some high-temperature powders may cause arching and material accumulation during transportation, and even cause mechanical failure and deformation due to high temperature. The existing stirring tooth type discharging device is mostly applied in the building material cement industry, and the mature application of rotary body discharging in the chemical industry and graphite metallurgy industry is relatively less. The main reason is that these industries involve complex materials, large density, large friction coefficient, and the material is easy to adhere to the stirring tooth, the temperature is high and often accompanied by some dust and sulfide gas, the environment is very harsh. Therefore, the traditional discharging device is easy to arch in this environment and difficult to break arch; at the same time, some materials are corrosive, which can corrode the discharging stirring tooth, discharging bin and related components, and shorten the service life of related objects.

[0004] Chinese patent application No. CN202120029765.3, published on November 9, 2021, discloses a baking soda bin arch breaking device, which comprises a bin body, a conical cylinder is fixed to the bottom of the bin body, and an arch breaking assembly is arranged in the conical cylinder. The baking soda bin arch breaking device cooperates with the bin body, conical cylinder, discharge pipe, electric control valve, motor and arch breaking assembly to enable the device to mesh between the first gear and the second gear during use, and the vertical rod is connected with the vertical cylinder to rotate, so that the support rod can rotate while rotating with the vertical cylinder shaft, and the material is stirred by the lever to prevent accumulation and blockage, greatly improving the arch breaking capacity of the material. The gap between the slide rod and the horizontal cylinder is matched, and the scraper is arranged to enable the motor to rotate in the opposite direction to drive the horizontal cylinder to rotate, and then the slide rod drives the scraper to rotate axially and scrape the inner wall of the conical cylinder, to prevent the material from sticking to the wall due to moisture, further reduce the probability of material blockage, and improve the completeness of material discharge.

[0005] The patent document with the Chinese patent application number CN202410043850.3 and the publication date of February 13, 2024 discloses a vortex arch-breaking feeder, relating to the technical field of vortex arch-breaking. The vortex arch-breaking feeder comprises a support frame standing on a horizontal plane, a first arch-breaking shell arranged below a material bin and communicating with the interior of the material bin, a second arch-breaking shell for receiving broken arching substances, the second arch-breaking shell being fixedly connected with the support frame, a bottom wall of the second arch-breaking shell being provided with a discharge port for discharging the arching substances, two vibration motors arranged in cross and used for generating vortex vibration, and an arch-breaking cone capable of being vibrated to break the arching substances under the action of the vortex vibration. The arch-breaking mechanism can drive the arch-breaking cone to rotate and break the arching substances. The invention has the effect of breaking the arching substances when they are broken, thereby reducing the probability of arching substances blocking the discharge port.

[0006] Both of the above-mentioned solutions disclose auxiliary feeding structures for breaking arching materials when the materials are fed, but the arch-breaking structures used by both are common structures in the market, in which stirring teeth or scraping teeth are uniformly arranged on the shaft. However, when the rotary kiln is fed, the feeding amount on different sides is uneven. Therefore, the arch-breaking effect on the side with more feeding amount is not ideal, and thus the existing arch-breaking structure cannot be well applied to the auxiliary feeding of the rotary kiln. SUMMARY

[0007] 1. Problem to be solved

[0008] In view of the problem that the existing auxiliary feeding arch-breaking structure cannot be well applied to the uneven feeding of the rotary kiln, the utility model provides a stirring tooth auxiliary feeding device, which is specially designed for the uneven feeding of the rotary kiln and can realize uniform distribution of materials on the entire arch-breaking structure, thereby ensuring the arch-breaking effect.

[0009] 2. Technical solution

[0010] To solve the above-mentioned problem, the utility model adopts the following technical solution.

[0011] A stirring tooth auxiliary feeding device comprises a feeding cavity, a bearing seat is arranged on one side of the feeding cavity, a main shaft driving device is arranged on the other side of the feeding cavity, a main shaft horizontally arranged and penetrating through the feeding cavity is drivingly connected between the bearing seat and the main shaft driving device, stirring teeth are arranged on the main shaft along the length direction of the main shaft, the stirring teeth on one side of the main shaft are arranged in a spiral shape around the main shaft, and the stirring teeth on the other side of the main shaft are arranged in a staggered and uniform distribution around the main shaft.

[0012] As a further improvement of the technical scheme, the shaft end support frame is fixedly installed on the bearing seat.

[0013] As a further improvement of the technical scheme, the main shaft is provided with a packing seal at one end close to the bearing seat.

[0014] As a further improvement of the technical scheme, the packing seal is provided with a nitrogen channel outside the cavity of the packing seal, and the nitrogen channel is connected with a nitrogen source.

[0015] As a further improvement of the technical scheme, the main shaft is provided with a water cooling channel, and the outlet and the inlet of the water cooling channel are connected with the inlet and the outlet of a water supply device, respectively.

[0016] As a further improvement of the technical scheme, the main shaft driving device adopts a transmission sprocket, and the transmission sprocket is drivingly connected with the output shaft of the motor.

[0017] As a further improvement of the technical scheme, the stirring tooth is in a round bar structure.

[0018] As a further improvement of the technical scheme, the upper end of the discharging cavity is provided with an upper end connecting flange, and the lower end is provided with a lower end connecting flange.

[0019] As a further improvement of the technical scheme, the discharging cavity is in an upper and lower opening structure, and the opening gradually decreases from top to bottom.

[0020] 3, beneficial effects

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (1) the stirring tooth auxiliary discharging device of the utility model has a unique design for the stirring tooth structure and distribution on the main shaft, the stirring tooth is arranged in a spiral distribution structure on the side with large discharging amount, the stirring tooth plays a role in pushing the material while dispersing the material, is beneficial to the uniform distribution of the material on the whole arch breaking structure, the other side is arranged in a staggered and uniform distribution, and the two are matched with each other and arranged alternately to push and extrude the material, so that the material layering is avoided and the arch breaking effect is ensured.

[0023] (2) the stirring tooth auxiliary discharging device of the utility model is provided with a circulating water cooling structure in the main shaft, can cool the main shaft and the material adhered to the main shaft due to high temperature, and avoids the adhesion of the material.

[0024] (3) the stirring tooth auxiliary discharging device of the utility model adopts a combination of packing and air sealing, can prevent the leakage of the material in the kiln and the entry of air into the kiln.

[0025] (4) the stirring tooth auxiliary discharging device of the utility model adopts a chain wheel transmission, can strengthen heat dissipation and stabilize the action structure.

[0026] (5)The utility model relates to a kind of auxiliary discharging devices of stirring tooth, the upper and lower ends of discharging cavity adopt the modular design of being connected with external equipment by flange, convenient to disassemble and overhaul. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the structure sectional view of the discharging device of the utility model;

[0028] Figure 2 It is the plan view of the stirring tooth of the utility model;

[0029] In the drawing: 1, lower end connecting flange;2, bearing seat;3, shaft end support frame;4, packing seal;5, upper end connecting flange;6, discharging cavity;7, stirring tooth;8, main shaft;9, main shaft driving device. DETAILED DESCRIPTION

[0030] The exemplary embodiments of the utility model are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the utility model, it should be understood that other embodiments can be implemented and various changes can be made to the utility model without departing from the spirit and scope of the utility model. The more detailed description of the embodiments of the utility model below is not used to limit the scope of the claimed utility model, but only for illustration and does not limit the description of the features and characteristics of the utility model, to propose the best way to implement the utility model, and enough to enable those skilled in the art to implement the utility model. Therefore, the scope of the utility model is only limited by the attached claims.

[0031] Example 1

[0032] A kind of auxiliary discharging devices of stirring tooth, for material auxiliary transportation work in rotary kiln system, the specific structure and technical effect thereof are described in detail below.

[0033] As Figure 1 And Figure 2 Shown, the discharging device includes discharging cavity 6, discharging cavity 6 is upper and lower opening structure, its opening gradually decreases from top to bottom. One side of discharging cavity 6 is equipped with bearing seat 2, the other side is equipped with main shaft driving device 9, bearing seat 2 and main shaft driving device 9 are transmissionally connected with the main shaft 8 horizontally arranged and passing through discharging cavity 6. Stirring tooth 7 is arranged on main shaft 8 along its length direction, the stirring tooth 7 of one side of main shaft 8 is arranged around main shaft 8 in spiral shape, the stirring tooth 7 of the other side of main shaft 8 is arranged around main shaft 8 in staggered uniform distribution.

[0034] The stirring tooth 7 is arranged in a spiral distribution structure on the side with large discharge amount, which can scatter the material and push the material, and is beneficial to the uniform distribution of the material on the entire arch breaking structure. The other side is arranged in a staggered and uniform distribution, and the two sides are arranged alternately to push and extrude the material, so as to avoid material stratification and ensure the arch breaking effect.

[0035] Specific installation of the bearing seat 2, the shaft end support frame 3 is arranged on the side of the bearing seat 2 close to the blanking cavity 6, and the bearing seat 2 is fixedly installed on the shaft end support frame 3. The main shaft 8 is provided with a packing seal 4 at one end close to the bearing seat 2, and the cavity outside the packing seal 4 is provided with a nitrogen channel communicating with the cavity. The nitrogen channel is connected with a nitrogen source. The combination of the packing and the gas seal can prevent material leakage in the kiln and air entering the kiln.

[0036] In addition, the water cooling channel is arranged in the main shaft 8, and the outlet and inlet of the water cooling channel are connected with the inlet and outlet of the water supply device, respectively, so as to cool the main shaft and the material adhered to the main shaft due to high temperature, and avoid the adhesion of the material.

[0037] In the embodiment, the main shaft driving device 9 adopts a transmission sprocket, which is connected with the motor output shaft, can enhance heat dissipation, and has stable action structure. The stirring tooth 7 is a special designed round bar structure.

[0038] It is worth mentioning that the upper end of the blanking cavity is provided with an upper end connecting flange 5, and the lower end is provided with a lower end connecting flange 1. The modular design of connecting the flange with the external equipment makes it convenient for the workers to disassemble and overhaul the blanking device.

[0039] In summary, the stirring tooth auxiliary blanking device of the embodiment is specially designed for the uneven blanking of the rotary kiln, and can realize the uniform distribution of the material on the entire arch breaking structure and ensure the arch breaking effect.

Claims

1. A pinion-assisted blanking device, comprising a blanking cavity (6), one side of which is provided with a bearing seat (2) and the other side is provided with a main shaft driving device (9), a main shaft (8) being drivingly connected between the bearing seat (2) and the main shaft driving device (9) and horizontally arranged through the blanking cavity (6), characterized in that: The main shaft (8) is provided with stirring teeth (7) along its length direction, the stirring teeth (7) on one side of the main shaft (8) are arranged in a spiral around the main shaft (8), and the stirring teeth (7) on the other side of the main shaft (8) are arranged in a staggered and uniform distribution around the main shaft (8).

2. The agitator-assisted blanking device according to claim 1, characterized in that The shaft end support frame (3) is arranged on the side of the blanking cavity (6) close to the bearing seat (2), and the bearing seat (2) is fixedly installed on the shaft end support frame (3).

3. The finger-assisted blanking device according to claim 1, wherein: The main shaft (8) is provided with a packing seal (4) at one end close to the bearing seat (2).

4. The finger-assisted blanking device according to claim 3, characterized in that: The packing seal (4) is provided with a nitrogen channel outside the cavity and communicating with the cavity, and the nitrogen channel is connected with a nitrogen source.

5. The finger-assisted blanking device of claim 1, wherein: The water cooling channel is arranged in the main shaft (8), and the outlet and inlet of the water cooling channel are respectively connected with the inlet and outlet of a water supply device.

6. The finger-assisted blanking device of claim 1, wherein: The main shaft driving device (9) adopts a transmission sprocket, and the transmission sprocket is drivingly connected with the motor output shaft.

7. The device according to any one of claims 1-6, wherein: The stirring teeth (7) are in a round bar structure.

8. The device according to any one of claims 1-6, wherein: The upper end of the blanking cavity (6) is provided with an upper end connecting flange (5), and the lower end is provided with a lower end connecting flange (1).

9. The device according to any one of claims 1-6, wherein: The blanking cavity (6) is in an upper and lower opening structure, and the opening gradually decreases from top to bottom.

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