Refractory material castable raw material crushing and dust collecting device

Abstract

The utility model discloses a refractory castable raw material crushing and dust collecting device which comprises a crushing box and a conveying box, a feeding nozzle is arranged on the top face of the crushing box, and the bottom of the crushing box is communicated with the conveying box. According to the dust collection device, the dust collection fan installed in the dust collection box is started, the air suction opening of the dust collection fan sucks air in the dust collection cavity through the filter cover, the dust collection cavity in the negative pressure state sucks dust at the position of the feeding nozzle through the dust collection pipe and the dust collection cover, and the dust in the feeding nozzle is discharged through the dust collection pipe when the dust collection fan is in the continuous working state. Dust in the crushing stage of the crushing box is collected, on the basis, water is pressurized and pumped into the spraying pipe, the water is promoted to enter the dispersing shell in a water mist mode through the multiple atomization nozzles on the spraying pipe, and then the water mist is evenly diffused to the surface of the conveying belt through the multiple round holes in the bottom face of the dispersing shell; compared with the prior art, dust collection at the feeding end of the castable and dust reduction at the discharging end of the castable are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of castable processing equipment, and in particular to a crushing and dust collection device for refractory castable raw materials. Background Technology

[0002] Refractory castable, also known as refractory refractories, is a mixture of refractory aggregates, powders, and binders. After adding water or other liquids, it is suitable for construction using pouring or vibration methods. It can also be prefabricated into precast components of specified shapes and dimensions for constructing industrial furnace linings. To improve the physical, chemical, and workability of refractory castables, appropriate admixtures are often added, such as plasticizers, dispersants, accelerators, retarders, expanding agents, deflocculants, and gelling agents. The production process of refractory castables is simple, labor-saving, energy-efficient, and produces high-quality work. Furthermore, it can be prepared on-site or selected from high-performance materials as needed. Therefore, refractory castables are a widely used and widely applicable type of monolithic refractory material in furnace construction. Before use, the raw materials of castables typically need to be crushed.

[0003] A search revealed that Chinese Patent Publication No. CN215313003U discloses a raw material crushing device for castables, comprising a shell, a first crushing mechanism, and a second crushing mechanism. The shell has a crushing groove inside, and a first rotating shaft is symmetrically connected to the inside of the crushing groove. An installation roller is provided in the middle of each of the two first rotating shafts. The patent allows the raw material to be poured into the crushing groove inside the shell, and then an external control switch controls the motor to work, enabling the crushing of the castable raw material.

[0004] However, the aforementioned patent still has issues that need improvement in the process of crushing castable raw materials. The most obvious issue is that an open feeding port is usually used for the convenience of feeding, which leads to dust overflowing during the crushing process. This not only easily pollutes the surrounding environment but also poses a risk to the health of the workers.

[0005] To address this issue, a refractory castable raw material crushing and dust collection device is proposed, which has the advantages of high-efficiency crushing and dust collection, thereby solving the problems mentioned in the background technology. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a refractory castable raw material crushing and dust collection device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a refractory castable raw material crushing and dust collection device, comprising a crushing box and a conveying box. The top surface of the crushing box is provided with a feeding nozzle, and the bottom of the crushing box is connected to the conveying box. A conveyor belt is horizontally installed inside the conveying box, and a dispersion shell is fixed on the top side of the inner side of the conveying box corresponding to the conveyor belt. Multiple crushing devices are installed in a serpentine arrangement on the left and right sides inside the crushing box, and each crushing device is equipped with a crushing roller assembly. A dust collection box is fixed on the upper side of the crushing box, and a dust collection chamber is opened inside the dust collection box. A dust suction fan is fixedly installed on the lower inner side of the dust collection box, and a filter cover is connected to the suction port of the dust suction fan through a pipe. The filter cover is connected to the dust collection chamber of the dust collection box. A dust suction hood is connected to the side of the feeding nozzle, and a dust suction pipe connected to the dust collection chamber is provided on the dust suction hood. A spray pipe is horizontally installed above the conveying box, and several atomizing nozzles extending into the dispersion shell are installed on the surface of the spray pipe.

[0008] As a further description of the above technical solution: the top of the crushing device is provided with a trumpet-shaped material guide section, and the bottom of the crushing device is provided with a material guide inclined plate. The crushing roller assembly consists of two crushing rollers and a motor installed at their shaft ends, and the two crushing rollers of the crushing roller assembly are arranged in parallel.

[0009] As a further description of the above technical solution: the dispersion shell is located directly above the conveyor belt, and the bottom surface of the dispersion shell has a number of circular holes arranged in a giant array.

[0010] As a further description of the above technical solution: the side of the dust collection box is provided with a rectangular opening that communicates with the dust collection chamber, and a dust discharge plate is fixed to the rectangular opening by screws.

[0011] As a further description of the above technical solution: the right end of the conveyor box is open, and the conveyor box is set perpendicular to the crushing box.

[0012] As a further description of the above technical solution: multiple V-shaped baffles are arranged side by side on the inner side of the feed nozzle, and the cross-section of each V-shaped baffle is an inverted V-shaped structure.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, by activating the dust collection fan installed inside the dust collection box, the air intake of the dust collection fan is forced to draw air from the dust collection chamber through the filter cover. This creates a negative pressure dust collection chamber that absorbs dust from the feed nozzle through the suction pipe and the suction cover. While the dust collection fan is continuously working, dust from the crushing stage in the crushing box is collected. Furthermore, water is pressurized and pumped into the spray pipe, causing the water to enter the dispersion shell in the form of water mist through several atomizing nozzles on the spray pipe. The water mist is then evenly diffused onto the surface of the conveyor belt through several round holes on the bottom of the dispersion shell. This achieves dust reduction during the crushing and discharge stage of the castable raw material. Compared with the prior art, this invention achieves dust collection at the feed end and dust reduction at the discharge end of the castable, reducing dust pollution and harm to workers' health.

[0015] In this invention, multiple crushing devices are arranged in a serpentine pattern on the left and right sides inside the crushing box. When the castable material is fed into the crushing box, it first falls into the uppermost crushing device through the trumpet-shaped guide section and is crushed by the crushing roller assembly. Then, guided by the guide inclined plate, it falls into the other two crushing devices for further crushing and is conveyed out by the conveyor belt of the conveyor box. Compared with existing crushing devices, multi-stage crushing can be achieved during the falling stage of the castable material, increasing the crushing efficiency and fineness of the castable material. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of a refractory castable raw material crushing and dust collection device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a refractory castable raw material crushing and dust collection device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the crushing device;

[0019] Figure 4 This is a schematic diagram of the dispersion shell structure.

[0020] Legend:

[0021] 1. Crushing box; 2. Conveying box; 3. Feed nozzle; 4. Conveyor belt; 5. Dust collection box; 6. Dust suction pipe; 7. Dust suction hood; 8. Filter cover; 9. Ash discharge plate; 10. Spray pipe; 11. V-shaped baffle; 12. Crushing device; 13. Crushing roller assembly; 14. Dust suction fan; 15. Dust collection chamber; 16. Dispersion shell; 17. Atomizing nozzle; 18. Horn-shaped material guide section; 19. Material guide inclined plate; 20. Round hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] According to an embodiment of the present invention, a refractory castable raw material crushing and dust collection device is provided.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a refractory castable raw material crushing and dust collection device according to an embodiment of the present invention includes a crushing box 1 and a conveying box 2. A feed inlet 3 is provided on the top surface of the crushing box 1, and the bottom of the crushing box 1 is connected to the conveying box 2. A conveyor belt 4 is horizontally installed inside the conveying box 2, and a dispersion shell 16 is fixed to the top inner side of the conveying box 2 corresponding to the conveyor belt 4. Multiple crushing devices 12 are installed in a serpentine arrangement on the left and right sides inside the crushing box 1, and each crushing device 12 has a crushing roller assembly 13 installed inside. A dust collection box 5 is fixed to the upper side of the crushing box 1, and a dust collection chamber 15 is opened inside the dust collection box 5. A dust suction fan 14 is fixedly installed on the lower inner side of the dust collection box 5, and the suction port of the dust suction fan 14 is connected to a pipe. A filter cover 8 is connected and is connected to the dust collection chamber 15 of the dust collection box 5. A dust suction cover 7 is connected to the side of the feed nozzle 3, and a dust suction pipe 6 connected to the dust collection chamber 15 is provided on the dust suction cover 7. A spray pipe 10 is installed horizontally above the conveyor box 2, and several atomizing nozzles 17 extending into the dispersion shell 16 are installed on the surface of the spray pipe 10. For the motors of the conveyor belt 4, the dust suction fan 14, and the crushing roller assembly 13, the control method of this utility model is to control them by manually starting and stopping the switch. The wiring diagram of the power components and the power supply are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail in this utility model.

[0025] In one embodiment, the top of the crushing device 12 is provided with a trumpet-shaped guide section 18, and the bottom of the crushing device 12 is provided with a guide ramp 19. The crushing roller assembly 13 consists of two crushing rollers and a motor mounted on their shaft ends. The two crushing rollers of the crushing roller assembly 13 are arranged in parallel. The trumpet-shaped guide section 18 and the guide ramp 19 are provided to guide the castable raw material so that the castable raw material can be transferred sequentially between multiple crushing devices 12 to achieve the effect of multi-stage crushing.

[0026] In one embodiment, the dispersion shell 16 is located directly above the conveyor belt 4, and the bottom surface of the dispersion shell 16 has a plurality of circular holes 20 arranged in a giant array, so that the water mist is more dispersed through the dispersion shell 16.

[0027] In one embodiment, the side of the dust collection box 5 has a rectangular opening that communicates with the dust collection chamber 15, and a dust discharge plate 9 is fixed to the rectangular opening by screws. With this structure, the rectangular opening is exposed by removing the screws of the dust discharge plate 9, making it easy to clean the dust collection chamber 15.

[0028] In one embodiment, the right end of the conveyor box 2 is open, and the conveyor box 2 is set vertically about the crushing box 1. This structure facilitates the feeding, discharging, and conveying of the castable material during the crushing stage.

[0029] In one embodiment, multiple V-shaped baffles 11 are arranged side by side on the inner side of the feed nozzle 3, and each V-shaped baffle 11 has an inverted V-shaped structure in cross section. By setting the V-shaped baffles 11, the castable raw material is dispersed by multiple V-shaped baffles 11 after being added to the feed nozzle 3, which is beneficial to the efficient crushing of the crushing roller assembly 13 and avoids the continuous feeding of castable raw material at the same position, which would reduce the service life of the crushing roller assembly 13.

[0030] Working principle:

[0031] In use, the castable material is fed into the feed nozzle 3, and then the motor mounted on the shaft end of the crushing roller assembly 13 is started, causing the two crushing rollers of the crushing roller assembly 13 to rotate. The castable material first falls into the uppermost crushing device 12 through the trumpet-shaped guide section 18, and is crushed by the crushing roller assembly 13. Then, guided by the guide plate 19, it falls into the other two crushing devices 12 for further crushing, and is conveyed out by the conveyor belt 4 of the conveyor box 2. By starting the dust collection fan 14 installed in the dust collection box 5, the air inlet of the dust collection fan 14 is forced to draw air through the filter cover 8. The air in the dust collection chamber 15 creates a negative pressure state, allowing the dust collection chamber 15 to absorb dust from the feed nozzle 3 through the dust suction pipe 6 and dust suction hood 7. With the dust suction fan 14 continuously working, dust from the crushing stage of the crushing box 1 is collected. On this basis, water is pressurized and pumped into the spray pipe 10, causing the water to enter the dispersion shell 16 in the form of water mist through several atomizing nozzles 17 on the spray pipe 10. Then, the water mist is evenly diffused to the surface of the conveyor belt 4 through several round holes 20 on the bottom surface of the dispersion shell 16, thereby achieving dust reduction during the crushing and discharge stage of the castable raw material, reducing dust pollution and harm to the health of workers.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A refractory castable raw material crushing and dust collecting device comprising a crushing box (1) and a conveying box (2), characterized in that: The top surface of the crushing box (1) is provided with a feeding nozzle (3), and the bottom of the crushing box (1) is communicated with a conveying box (2), a conveying belt (4) is transversely arranged in the conveying box (2), and a dispersion shell (16) is fixed to the inner top surface of the conveying box (2) corresponding to the conveying belt (4), a plurality of crushing devices (12) are arranged in a serpentine manner on the left and right sides of the crushing box (1), and a crushing roller assembly (13) is arranged in each crushing device (12), a dust collecting box (5) is fixed to the upper side of the crushing box (1), and a dust collecting cavity (15) is formed in the dust collecting box (5), a dust suction fan (14) is fixedly arranged on the inner bottom of the dust collecting box (5), a filter cover (8) is connected to the air suction port of the dust suction fan (14) through a pipeline, and the filter cover (8) is communicated with the dust collecting cavity (15) of the dust collecting box (5), a dust suction cover (7) is communicated with the side surface of the feeding nozzle (3), and the dust suction cover (7) is provided with a dust suction pipe (6) communicated with the dust collecting cavity (15), a spraying pipe (10) is transversely arranged above the conveying box (2), and a plurality of atomizing nozzles (17) extending into the dispersion shell (16) are arranged on the surface of the spraying pipe (10).

2. The raw material crushing and dust collecting device for refractory castable according to claim 1, characterized in that: The top of the crushing device (12) is provided with a horn-shaped material guiding part (18), and the bottom of the crushing device (12) is provided with a material guiding inclined plate (19), the crushing roller assembly (13) is composed of two crushing rollers and an electric motor arranged at the shaft end of the crushing rollers, and the two crushing rollers of the crushing roller assembly (13) are arranged in parallel.

3. The raw material crushing and dust collecting device for refractory castable according to claim 1, characterized in that: The dispersion shell (16) is directly above the conveying belt (4), and a plurality of circular holes (20) are formed in the bottom surface of the dispersion shell (16) in a giant array.

4. The raw material crushing and dust collecting device for refractory castable according to claim 1, characterized in that: A rectangular port communicated with the dust collecting cavity (15) is formed in the side surface of the dust collecting box (5), and a dust discharging plate (9) is fixed on the rectangular port by screws.

5. The refractory castable raw material crushing and dust collecting device according to claim 1, characterized in that: An open port is formed in the right end of the conveying box (2), and the conveying box (2) is arranged vertically with respect to the crushing box (1).

6. The refractory castable raw material crushing and dust collecting device according to claim 1, characterized in that: A plurality of V-shaped baffles (11) are arranged side by side in the inner side of the feeding nozzle (3), and each V-shaped baffle (11) has an inverted V-shaped structure in cross section.

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