Humidifying mixer with material cleaning function

Abstract

The utility model relates to a humidifying mixer with a material cleaning function, which structurally comprises a mixer cylinder wall and a material cleaning device, the material cleaning device comprises a hollow main shaft, a fixed bracket and a communicating pipe, the hollow main shaft is coupled on a support frame, a plurality of rotary plowshares are distributed on the surface of the hollow main shaft, and a plurality of purging holes are formed in the side wall of the hollow main shaft. The two ends of the hollow main shaft are connected with communicating pipes through rotating joints correspondingly, and the communicating pipes are used for providing fluid media. An adjusting rod is arranged at the lower end of the fixing support and used for adjusting the height of the hollow main shaft, and a flexible pipe is arranged on the communicating pipe. According to the utility model, online cleaning of sticky materials can be realized, the labor intensity of workers is reduced, the maintenance downtime is shortened, the operation load of equipment is reduced, the rotary plowshare is matched with the hole for use, fluid such as compressed air or water is used as a purging medium, a cleaning blind area in the mixer is eliminated, and the self-cleaning effect is achieved; and the distance between the rotary plowshare and the barrel wall of the mixing machine is adjustable.

Description

Technical Field

[0001] The utility model relates to a drum mixer, in particular to a humidifying mixer with a material cleaning function. Background Art

[0002] As a key equipment in the sintering process, the drum mixer is often used in the raw material mixing and granulation process in the sintering production line. The purpose is to ensure the permeability and homogeneity of the sintering material layer to stabilize the quality of the finished sintered ore.

[0003] During the mixing process of the mixture, due to the high viscosity of the material itself, sticking of the material is common during the operation of the mixer. As the running time increases, the material will agglomerate on the wall of the mixer cylinder, reducing the effective diameter of the mixer, increasing the operating load of the mixer, and seriously affecting the material mixing effect and processing capacity.

[0004] In order to maintain normal mixing of the mixer, the commonly used methods for removing sticky materials from the mixer are as follows: 1) Manual cleaning. This method has the problems of high labor intensity, high operating risk factor, and prone to safety accidents; 2) Scraper cleaning. This method has the problem that the scraper itself is prone to sticking to the material, and it also suffers from severe operating wear and limited application scope; 3) Rotary licker-in cleaning. This method has many blind spots for cleaning, and the cleaning effect is poor when the degree of material compaction is not high. Other methods are still needed to assist in cleaning during use.

[0005] In addition, the above cleaning methods basically require that the mixer be shut down for maintenance, and online cleaning cannot be achieved. For the sintering production process, it is not realistic to shut down the mixer for maintenance. Therefore, safe, efficient, and online cleaning of sticky materials for the mixer is a technical problem that needs to be solved urgently. Utility Model Content

[0006] The utility model aims to provide a humidifying mixer with a material cleaning function to solve the problems that the existing mixers cannot clean materials online and the cleaning effect is not ideal.

[0007] The utility model is implemented as follows: a humidifying mixer with a material cleaning function, comprising a mixer barrel wall and a material cleaning device, the material cleaning device comprising a hollow main shaft, a fixed bracket and a connecting pipe, the hollow main shaft is axially connected to the fixed bracket, a plurality of rotating plowshares are distributed on the surface of the hollow main shaft, a plurality of purge holes are opened on the side wall of the hollow main shaft, the two ends of the hollow main shaft are respectively connected with connecting pipes through rotating joints, the connecting pipes are used to provide fluid medium; an adjusting rod is arranged at the lower end of the fixed bracket, the adjusting rod is used to adjust the height of the hollow main shaft, and a flexible tube is arranged on the connecting pipe.

[0008] The fixed bracket includes a plurality of triangular support frames, and the plurality of triangular support frames are connected to each other through a cross bar.

[0009] The adjusting rod comprises a sleeve, and a vertical rod is inserted at the upper and lower ends or one end of the sleeve. The end of the vertical rod is a screw segment, and a worm wheel is threadedly connected to the screw segment. A worm is arranged on the sleeve, and the worm wheel and the worm are connected in a cooperative manner.

[0010] The rotary plowshare and the purge holes are evenly distributed around the axis of the hollow main shaft and evenly distributed along the axial direction of the hollow main shaft.

[0011] The rotary plowshares and the purge holes at the same position in the axial direction of the hollow main shaft are staggered in the circumferential direction of the hollow main shaft, and the rotary plowshares and the purge holes adjacent to each other in the axial direction of the hollow main shaft are staggered.

[0012] A regulating valve is arranged on the connecting pipe.

[0013] The utility model does not need to add a power source, and the cleaning process is completely realized by the self-rotation of the mixer to drive the bonding material to contact the plowshare, so that the sticky material can be cleaned online during the production process, the labor intensity of workers is reduced, the maintenance downtime is shortened, and the operating load of the equipment is reduced. The rotating plowshare is used in conjunction with the hole, and compressed air or water and other fluids are used as the purge medium, which not only eliminates the cleaning blind area in the mixer, but also has the effect of self-cleaning, thereby extending the service life of the device. The distance between the rotating plowshare and the mixer barrel wall is adjustable, which can adapt to different raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the present utility model.

[0016] Figure 3 It is a structural diagram of the fixing bracket of the utility model.

[0017] Figure 4 It is a cross-sectional view of the hollow main shaft of the utility model.

[0018] Figure 5 It is a structural diagram of the adjusting rod of the utility model.

[0019] In the figure: 1. mixer barrel wall; 2. hollow main shaft; 3. fixed bracket; 4. rotating plowshare; 5. purge hole; 6. connecting pipe; 7. rotating joint; 8. adjusting rod; 9. regulating valve; 10. flexible tube; 11. bonding material; 3-1. triangular support frame; 3-2. cross bar; 8-1. sleeve; 8-2. vertical bar; 8-3. screw segment; 8-4. worm gear; 8-5. worm; 8-6. hand wheel. DETAILED DESCRIPTION

[0020] The utility model will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 , Figure 2 As shown, the utility model includes a mixer barrel wall 1 and a cleaning device, the cleaning device includes a hollow main shaft 2, a fixed bracket 3 and a connecting pipe 6, the hollow main shaft 2 is axially connected to the fixed bracket 3, a plurality of rotating plowshares 4 are distributed on the surface of the hollow main shaft 2, a plurality of purge holes 5 are opened on the side wall of the hollow main shaft 2, the two ends of the hollow main shaft 2 are respectively connected to the connecting pipe 6 through a rotating joint 7, and the connecting pipe 6 is used to provide a fluid medium; an adjusting rod 8 is arranged at the lower end of the fixed bracket 3, the adjusting rod 8 is used to adjust the height of the hollow main shaft 2, and a flexible tube 10 is arranged on the connecting pipe 6.

[0022] The mixer barrel wall 1 is a part of the cylindrical mixer. Both ends of the mixer barrel wall 1 are open and the mixer barrel wall 1 has a driving device. When working, the driving device drives the mixer barrel wall 1 to rotate around its own rotation axis.

[0023] The hollow main shaft 2 of the cleaning device passes through the entire mixer barrel wall 1, and the two ends of the hollow main shaft 2 extend from the two ends of the mixer barrel wall 1 respectively. The two ends of the hollow main shaft 2 are connected to the fixed bracket 3 through bearings, so that the hollow main shaft 2 can rotate around its own axis on the fixed bracket 3.

[0024] In one embodiment of the utility model, in addition to the two ends of the hollow main shaft 2 being installed on the fixed bracket 3, at least one point of the portion of the hollow main shaft 2 located inside the mixer barrel wall 1 is connected to the fixed bracket 3, so that the hollow main shaft 2 is a multi-point support structure, so that the longer hollow main shaft 2 has better stability.

[0025] Among them, Figure 3 As shown, the fixed bracket 3 includes a plurality of triangular support frames 3-1, and the plurality of triangular support frames 3-1 are interconnected by a cross bar 3-2.

[0026] The hollow main shaft 2 can be a multi-section structure, and the adjacent sections are connected by threaded sealing, and a bearing is arranged at the connection position to connect with the fixed bracket 3. The hollow main shaft 2 adopts a multi-section arrangement to reduce the installation cost of the device body, avoid the influence of equipment deflection, and improve the operation stability of the device.

[0027] The cleaning of the material on the mixer barrel wall 1 is mainly carried out by the rotating plowshare 4. The hollow main shaft 2 is generally located at the top of the mixer barrel wall 1. The rotating plowshare 4 is close to the inner wall of the mixer barrel wall 1. During operation, the mixer barrel wall 1 rotates around its own axis. When there is material adhered to the barrel wall, when the part with the material adhered rotates to the top, the adhered material will contact the rotating plowshare 4, and the rotating plowshare 4 will clean up part of the adhered material 11. At the same time, under the reaction force, the hollow main shaft 2 rotates around its own axis.

[0028] The hollow main shaft 2 has a cavity inside, and the fluids at both ends flow into the cavity and are ejected through the purge holes 5, thereby cleaning the materials adhered to the mixer barrel wall 1 and cleaning the cleaning device itself.

[0029] The utility model can utilize compressed air or water as the purge medium.

[0030] The rotary plowshares 4 and the purge holes 5 are evenly distributed around the axis of the hollow main shaft 2 and evenly distributed along the axial direction of the hollow main shaft 2 .

[0031] The rotary plowshares 4 and the purge holes 5 at the same position in the axial direction of the hollow main shaft 2 are staggered in the circumferential direction of the hollow main shaft 2, and the adjacent rotary plowshares 4 in the axial direction of the hollow main shaft 2 are staggered with each other, and the adjacent purge holes 5 in the axial direction of the hollow main shaft 2 are also staggered with each other.

[0032] like Figure 4 As shown, three rotary plowshares 4 are evenly distributed around the axis of the hollow main shaft 2, three purge holes 5 are also evenly distributed around the axis of the hollow main shaft 2, and the purge holes 5 are located between two rotary plowshares 4, and the rotary plowshares 4 and the purge holes 5 are staggered.

[0033] The rotating plowshare 4 and the blowing device are staggered, which not only eliminates the blind area of ​​cleaning in the mixer, but also has a self-cleaning effect, thereby extending the service life of the device.

[0034] The two ends of the hollow main shaft 2 are connected with connecting pipes 6. Since the connecting pipe 6 cannot rotate with the hollow main shaft 2, a rotary joint 7 is provided at the two ends of the hollow main shaft 2 to communicate with the connecting pipe 6. The rotary joint 7 adopts the existing rotary joint 7 on the market, which can realize the relative rotation of the two sections of the pipeline and ensure the sealing performance. The fluid medium with a certain pressure enters the hollow main shaft 2 through the connecting pipe 6 and the rotary joint 7.

[0035] A regulating valve 9 is provided on the connecting pipe 6 , and the flow rate of the fluid medium can be adjusted by the regulating valve 9 .

[0036] The height of the hollow main shaft 2 can be adjusted, so a section of flexible tube 10 is arranged on the connecting pipe 6, the part above the flexible tube 10 is fixed on the fixed bracket 3, the part below the flexible tube 10 is connected to the external pipeline, and the part above the flexible tube 10 can move with the fixed bracket 3.

[0037] The height adjustment of the fixed bracket 3 is achieved by an adjustment rod 8, and an adjustment rod 8 is provided below the fixed bracket 3 at the end. Figure 5As shown, the adjusting rod 8 includes a sleeve 8-1, and a vertical rod 8-2 is inserted at the upper and lower ends or one end of the sleeve 8-1. The end of the vertical rod 8-2 is a screw segment 8-3, and a worm wheel 8-4 is threadedly connected to the screw segment 8-3. A worm 8-5 is arranged on the sleeve 8-1, and the worm wheel 8-4 and the worm 8-5 are connected in a cooperative manner.

[0038] A handwheel 8-6 ​​is provided at the end of the worm 8-5. The worm 8-5 is rotated by the handwheel 8-6, thereby driving the worm wheel 8-4 to rotate. Since the position of the worm wheel 8-4 in the sleeve 8-1 cannot move up and down, and the worm wheel 8-4 with an internal thread is threadedly connected to the threaded section, the rotation of the worm wheel 8-4 drives the vertical rod 8-2 to move up and down, thereby changing the height of the adjusting rod 8.

[0039] Among them, only the vertical rod 8-2 at the lower end of the sleeve 8-1 may have a screw segment 8-3, and the height can be adjusted only by the vertical rod 8-2 below the sleeve 8-1; or the vertical rods 8-2 can be inserted at both the upper and lower ends of the sleeve 8-1, and the ends of the upper and lower vertical rods 8-2 are both screw segments 8-3, and the height can be adjusted by the two vertical rods 8-2.

[0040] In one embodiment of the present invention, the vertical rod 8-2 is hinged to the fixed bracket 3, and the adjustment rods 8 at both ends of the device can adjust the overall installation angle.

[0041] The cleaning device of the utility model automatically operates when the mixer is started, and no additional power source is added. When the thickness of the sticky material on the mixer cylinder wall 1 increases, the rotating plowshare 4 of the cleaning device will contact the sticky material and destroy the material structure in the sticking process, so that it falls from the cylinder wall back to the mixing area. At the same time, the purge hole 5 provides a purge medium to ensure the cleaning effect.

Claims

1. A humidifying mixer with a material cleaning function, characterized in that: It includes a mixing machine barrel wall and a cleaning device, the cleaning device includes a hollow main shaft, a fixed bracket and a connecting pipe, the hollow main shaft is axially connected to the support frame, a plurality of rotating plowshares are distributed on the surface of the hollow main shaft, a plurality of purge holes are opened on the side wall of the hollow main shaft, the two ends of the hollow main shaft are respectively connected with connecting pipes through rotating joints, the connecting pipes are used to provide fluid medium; an adjusting rod is arranged at the lower end of the fixed bracket, the adjusting rod is used to adjust the height of the hollow main shaft, and a flexible tube is arranged on the connecting pipe.

2. The humidifying mixer with material cleaning function according to claim 1, characterized in that: The fixed bracket includes a plurality of triangular support frames, and the plurality of triangular support frames are connected to each other through a cross bar.

3. The humidifying mixer with material cleaning function according to claim 1, characterized in that: The adjusting rod comprises a sleeve, and a vertical rod is inserted at the upper and lower ends or one end of the sleeve. The end of the vertical rod is a screw segment, and a worm wheel is threadedly connected to the screw segment. A worm is arranged on the sleeve, and the worm wheel and the worm are connected in a cooperative manner.

4. The humidifying mixer with material cleaning function according to claim 1, characterized in that: The rotary plowshare and the purge holes are evenly distributed around the axis of the hollow main shaft and evenly distributed along the axial direction of the hollow main shaft.

5. The humidifying mixer with material cleaning function according to claim 4, characterized in that: The rotary plowshares and the purge holes at the same position in the axial direction of the hollow main shaft are staggered in the circumferential direction of the hollow main shaft, and the rotary plowshares and the purge holes adjacent to each other in the axial direction of the hollow main shaft are staggered.

6. The humidifying mixer with material cleaning function according to claim 1, characterized in that: A regulating valve is arranged on the connecting pipe.

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