Flying dust preventing electric smelting magnesium-chromium sand crushing device

Abstract

The electric smelting magnesium-chromium sand smashing device capable of preventing dust raising comprises a smashing box body, a feeding hopper is fixedly installed at the top of the smashing box body, a feeding pipe is installed at the bottom of the feeding hopper in a communicating mode, the feeding pipe extends into the smashing box body, and smashing paired rollers are installed in the smashing box body below the feeding pipe; a crushing paddle mechanism is fixedly installed at the position, below the crushing roller pair, of the inner bottom of the crushing box body, an annular water spraying mechanism is fixedly installed on the outer wall of the feeding pipe, and a convection check block is installed at the position, below the annular water spraying mechanism, of the outer wall of the feeding pipe; according to the utility model, through the arrangement of the convection baffle block, raised dust generated during crushing of the fused magnesite-chrome sand is guided to the outer edge of the convection baffle block, then water mist sprayed by the annular water spraying mechanism and the raised dust are converged through the convection baffle block, so that the effects of crushing and dust falling of the fused magnesite-chrome sand are realized, and then sewage is collected through the water collecting ring body; flying dust generated during crushing of the electric smelting magnesium-chromium sand is reduced, air pollution is reduced, and damage to health of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrofused magnesia-chrome sand crushing, in particular to an electrofused magnesia-chrome sand crushing device for preventing dust emission. Background Technique

[0002] Electrofused magnesia-chrome sand is an alloy obtained by electrofusing magnesia-chrome ore. It has excellent high-temperature resistance and can stably exist under high-temperature conditions. It has good corrosion resistance and high resistance to chemical corrosion such as acids and alkalis. It also has good electrical conductivity.

[0003] In the existing production process of electrofused magnesia-chrome sand, screening is required. At present, the equipment for screening electrofused magnesia-chrome sand will generate a large amount of dust, affecting the working environment, polluting the air, and easily causing harm to the health of workers.

[0004] Therefore, aiming at the deficiencies of the existing technology, it is very necessary to provide an electrofused magnesia-chrome sand crushing device for preventing dust emission to solve the deficiencies of the existing technology. Content of the Utility Model

[0005] The purpose of the utility model is to avoid the deficiencies of the existing technology and provide an electrofused magnesia-chrome sand crushing device for preventing dust emission. The electrofused magnesia-chrome sand crushing device for preventing dust emission guides the dust generated during the crushing of electrofused magnesia-chrome sand to the outer edge of the convection baffle through the setting of the convection baffle, and then combines the water mist sprayed by the annular water spraying mechanism with the dust through the convection baffle to achieve the effect of dust reduction during the crushing of electrofused magnesia-chrome sand. Then, the sewage is collected through the water collecting ring body, reducing the dust emission during the crushing of electrofused magnesia-chrome sand, reducing air pollution, and reducing the health damage to workers.

[0006] The above object of the utility model is achieved by the following technical means.

[0007] Provide an electrofused magnesia-chrome sand crushing device for preventing dust emission, including a crushing box body. A feeding funnel is fixedly installed at the top of the crushing box body. A feeding pipe is communicated and installed at the bottom of the feeding funnel and extends into the interior of the crushing box body. Below the feeding pipe, a crushing pair roll is installed inside the crushing box body. Below the crushing pair roll, a crushing paddle mechanism is fixedly installed at the inner bottom of the crushing box body. An annular water spraying mechanism is fixedly installed on the outer wall of the feeding pipe. Below the annular water spraying mechanism, a convection baffle is installed on the outer wall of the feeding pipe. A water collecting ring body is installed on the inner side wall of the crushing box body;

[0008] The annular water spraying mechanism includes a water spraying ring pipe. Vertically arranged spray pipes and inclined spray pipes are fixedly installed at the bottom of the water spraying ring pipe. The water spraying ring pipe extends outside the crushing box body through a water inlet pipe and is connected to a water pump. The convection baffle includes an upper drainage part and a lower drainage part. The upper drainage part and the lower drainage part are two symmetrically fitted frustum-shaped bodies with hollow interiors. The diameter of the side of the upper drainage part and the lower drainage part close to the fitting position is larger than that of the side far from the fitting position.

[0009] Specifically, a water collecting groove is formed at the top of the water collecting ring body. A water flow channel is arranged inside the water collecting ring body. A water collecting tank is installed outside the crushing box body. The water flow channel connects the water collecting groove with the water collecting tank.

[0010] Preferably, the top of the water collecting groove is open, and the inner edge diameter of the water collecting groove is smaller than the maximum diameter of the upper drainage part and the lower drainage part.

[0011] Specifically, the crushing paddle mechanism includes an equipment bin. A driving motor is fixedly installed inside the equipment bin. The output end of the driving motor is fixedly installed with a rotating shaft. The top of the rotating shaft extends outside the equipment bin and is fixedly installed with a crushing paddle. A crushing ring groove is installed around the equipment bin and the crushing paddle. The outer wall of the crushing ring groove is in contact with the inner wall of the water collecting ring body.

[0012] Furthermore, an inclined part is arranged at the top of the crushing ring groove.

[0013] In the utility model, by arranging the convection baffle, the dust generated during the crushing of fused magnesia chrome sand is guided to the outer edge of the convection baffle. Then, the water mist sprayed by the annular water spraying mechanism is merged with the dust by the convection baffle to achieve the effect of dust reduction during the crushing of fused magnesia chrome sand. Then, the sewage is collected by the water collecting ring body, reducing the dust during the crushing of fused magnesia chrome sand, reducing air pollution, and reducing the health damage to the staff. Description of the Drawings

[0014] The present utility model is further described with the aid of the drawings, but the content in the drawings does not constitute any limitation to the present utility model.

[0015] Figure 1 It is the front view structural schematic diagram of a fused magnesia chrome sand crushing device for preventing dust in the present utility model.

[0016] Figure 2 It is the three-dimensional structural schematic diagram of the installation of the feeding funnel, the feeding pipe and the convection baffle of a fused magnesia chrome sand crushing device for preventing dust in the present utility model.

[0017] Figure 3 It is the three-dimensional structural schematic diagram of the annular water spraying mechanism of a fused magnesia chrome sand crushing device for preventing dust in the present utility model.

[0018] Figure 4It is a three-dimensional structural schematic diagram of the water collection ring body of an electrofused magnesia-chrome sand crushing device for preventing dust in the utility model.

[0019] From Figures 1 to 4 Among them, it includes:

[0020] 1. Crushing box body;

[0021] 2. Feeding funnel;

[0022] 3. Feeding pipe;

[0023] 4. Crushing counter-rolls;

[0024] 5. Convection baffle;

[0025] 6. Water collection ring body;

[0026] 7. Spraying ring pipe;

[0027] 8. Water pump;

[0028] 9. Upper drainage part;

[0029] 10. Lower drainage part;

[0030] 11. Water collection tank;

[0031] 12. Water flow channel;

[0032] 13. Water collection tank;

[0033] 14. Equipment bin;

[0034] 15. Driving motor;

[0035] 16. Rotating shaft;

[0036] 17. Crushing paddle;

[0037] 18. Crushing ring groove;

[0038] 19. Inclined part;

[0039] 20. Vertical spray pipe;

[0040] 21. Inclined spray pipe. Specific implementation mode

[0041] The present utility model will be further described in combination with the following embodiments.

[0042] Embodiment 1.

[0043] As Figures 1 - 4As shown in the figure, a crushing device for fused magnesia-chrome sand to prevent dust flying includes a crushing box body 1. A feeding funnel 2 is fixedly installed at the top of the crushing box body 1. A feeding pipe 3 is connected and communicated at the bottom of the feeding funnel 2. The feeding pipe 3 extends into the interior of the crushing box body 1. Below the feeding pipe 3, a crushing pair of rollers 4 is installed inside the crushing box body 1. Below the crushing pair of rollers 4, a crushing paddle mechanism is fixedly installed at the inner bottom of the crushing box body 1. An annular water spraying mechanism is fixedly installed on the outer wall of the feeding pipe 3. Below the annular water spraying mechanism, a convection baffle 5 is installed on the outer wall of the feeding pipe 3. A water collecting ring body 6 is installed on the inner side wall of the crushing box body 1.

[0044] This application is used for crushing fused magnesia-chrome sand. First, the overall equipment is fixed by the crushing box body 1. The fused magnesia-chrome sand to be crushed is introduced through the feeding funnel 2. The fused magnesia-chrome sand flows downward through the feeding pipe 3 onto the crushing pair of rollers 4 for preliminary crushing, and then is further crushed by the crushing paddle mechanism. The annular water spraying mechanism on the outer wall of the feeding pipe 3 can spray water mist into the interior of the lower crushing box body 1 for dust reduction. At the same time, the convection baffle 5 can prevent the sprayed water mist from falling onto the crushing pair of rollers 4, preventing the raw material of fused magnesia-chrome sand from being wetted. And the convection baffle 5 can divert the dust flying generated by the crushing of the fused magnesia-chrome sand by the crushing pair of rollers 4 and the crushing paddle mechanism to the edge for convection with the water mist sprayed from above, and the dust will be driven by the water mist to fall into the water collecting ring body 6 and will not flow out of the crushing box body 1.

[0045] The annular water spraying mechanism includes a water spraying ring pipe 7. Vertically arranged spray pipes 20 and obliquely arranged spray pipes 21 are fixedly installed at the bottom of the water spraying ring pipe 7. The water spraying ring pipe 7 extends to the outside of the crushing box body 1 through a water inlet pipe and is connected to a water pump 8. The convection baffle 5 includes an upper diversion part 9 and a lower diversion part 10. The upper diversion part 9 and the lower diversion part 10 are two symmetrically fitted and hollow frustum-shaped bodies. The diameter of the side of the upper diversion part 9 and the lower diversion part 10 close to the fitting part is larger than the side far from the fitting part.

[0046] The annular water spraying mechanism sprays mist around the feeding pipe 3 through the water spraying ring pipe 7, and realizes the spray dust reduction of the entire crushing box body 1 through the arrangement of the vertically arranged spray pipes 20 and the obliquely arranged spray pipes 21, avoiding the occurrence of spray dead corners. The upper diversion part 9 of the convection baffle 5 is responsible for preventing the water mist from wetting the fused magnesia-chrome sand, and the lower diversion part 10 diverts the dust flying to the edge for convection with the water mist.

[0047] A water collecting groove 11 is opened at the top of the water collecting ring body 6. A water flowing channel 12 is arranged inside the water collecting ring body 6. A water collecting tank 13 is installed outside the crushing box body 1. The water flowing channel 12 communicates the water collecting groove 11 with the water collecting tank 13.

[0048] The water collecting ring body 6 collects the mixture of the sprayed water and the dust flying through the water collecting groove 11, and then stores it through the water collecting tank 13.

[0049] The top of the water collecting tank 11 is open, and the inner edge diameter of the water collecting tank 11 is smaller than the maximum diameter of the upper drainage part 9 and the lower drainage part 10.

[0050] The diameter of the water collecting tank 11 is such that the water left by the convection baffle 5 directly falls into the tank without wetting the fused magnesia chrome spinel.

[0051] The crushing paddle mechanism includes an equipment bin 14. A driving motor 15 is fixedly installed inside the equipment bin 14. The output end of the driving motor 15 is fixedly installed with a rotating shaft 16. The top of the rotating shaft 16 extends to the outside of the equipment bin 14 and is fixedly installed with a crushing paddle 17. A crushing ring groove 18 is installed around the equipment bin 14 and the crushing paddle 17, and the outer wall of the crushing ring groove 18 is in contact with the inner wall of the water collecting ring body 6.

[0052] The crushing paddle mechanism drives the rotating shaft 16 and the crushing paddle 17 through the output of the driving motor 15 to further crush the fused magnesia chrome spinel. At the same time, the fused magnesia chrome spinel is collected through the crushing ring groove 18, and the crushing ring groove 18 is communicated with the outside to realize feeding.

[0053] The top of the crushing ring groove 18 is provided with an inclined part 19.

[0054] The setting of the inclined part 19 can prevent the preliminarily crushed fused magnesia chrome spinel from falling on the edge of the crushing ring groove 18.

[0055] In this utility model, through the setting of the convection baffle 5, the dust generated during the crushing of the fused magnesia chrome spinel is guided to the outer edge of the convection baffle 5, and then the water mist sprayed by the annular water spraying mechanism is combined with the dust through the convection baffle 5 to achieve the effect of dust reduction during the crushing of the fused magnesia chrome spinel. Then, the sewage is collected through the water collecting ring body 6, reducing the dust during the crushing of the fused magnesia chrome spinel, reducing air pollution, and reducing the health damage to the staff.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A fused magnesia-chrome sand crushing device for preventing dust, characterized in that: It comprises a crushing box, a feeding funnel is fixedly installed on the top of the crushing box, a feeding pipe is connected and installed at the bottom of the feeding funnel, the feeding pipe extends to the inside of the crushing box, a crushing pair of rollers is installed inside the crushing box below the feeding pipe, a crushing paddle mechanism is fixedly installed at the inner bottom of the crushing box below the crushing pair of rollers, an annular water spraying mechanism is fixedly installed on the outer wall of the feeding pipe, a convection block is installed on the outer wall of the feeding pipe below the annular water spraying mechanism, and a water collecting ring is installed on the inner side wall of the crushing box; The annular water spray mechanism includes a water spray ring pipe, a vertical nozzle and an inclined nozzle are fixedly installed at the bottom of the water spray ring pipe, the water spray ring pipe extends to the outside of the crushing box through a water inlet pipe and is connected to a water pump, the convection block includes an upper drainage part and a lower drainage part, the upper drainage part and the lower drainage part are two symmetrically fitted and hollow truncated cones, and the diameter of the upper drainage part and the lower drainage part close to the fitting is larger than the diameter of the side away from the fitting.

2. The dust-preventing fused magnesia-chrome sand crushing device according to claim 1, characterized in that: A water collecting groove is provided on the top of the water collecting ring body, a water flow channel is provided inside the water collecting ring body, a water collecting box is installed outside the crushing box body, and the water flow channel connects the water collecting groove with the water collecting box.

3. The dust-preventing fused magnesia-chrome sand crushing device according to claim 2, characterized in that: The top of the water collecting trough is an opening direction, and the inner edge diameter of the water collecting trough is smaller than the maximum diameter of the upper drainage part and the lower drainage part.

4. The dust-preventing fused magnesia-chrome sand crushing device according to claim 3, characterized in that: The crushing paddle mechanism includes an equipment bin, a driving motor is fixedly installed inside the equipment bin, a rotating shaft is fixedly installed at the output end of the driving motor, the top of the rotating shaft extends to the outside of the equipment bin and is fixedly installed with a crushing paddle, a crushing ring groove is installed around the equipment bin and the crushing paddle, and the outer wall of the crushing ring groove is in contact with the inner wall of the water collecting ring body.

5. The dust-preventing fused magnesia-chrome sand crushing device according to claim 4, characterized in that: The top of the pulverizing ring groove is provided with an inclined portion.

Images