A raw material mixing device for cement production

Abstract

The present invention provides a raw material mixing device for cement production, which belongs to the technical field of cement production, and includes a mixing barrel, a turntable, a first drive assembly, a second drive assembly, a first mixing assembly, and a second mixing assembly. The top edge of the mixing barrel is provided with a plurality of feed hoppers, the turntable is arranged inside the mixing barrel, the turntable is provided with a plurality of spaced drop openings at an eccentric position, and a material holding plate is hingedly arranged in each group of the drop openings. The first drive assembly is arranged on the side wall of the mixing barrel to drive the turntable to rotate. Compared with the prior art, the embodiment of the present invention can pre-layer various cement raw materials entering the mixing barrel by driving the turntable and the plurality of material holding plates to rotate through the first drive assembly, and can improve the mixing effect and mixing efficiency of the cement raw materials by cooperating with the subsequent first mixing assembly and the second mixing assembly to perform two mixing processes on various cement raw materials.

Description

Technical Field

[0001] The invention belongs to the technical field of cement production, in particular to a raw material mixing device for cement production. Background Art

[0002] At present, in the cement production process, it is sometimes necessary to mix various raw materials such as cement, aggregates and other mixtures (such as fillers and admixtures) into one to meet the requirements of lightweight construction.

[0003] In the prior art, cement raw materials are mostly mixed by placing various raw materials with good proportions in a unified manner in a mixing box, and then stirring the various raw materials with the help of a stirring mechanism to mix the various raw materials with each other. However, the number of raw materials in each group is often large, and the various raw materials are easily independent of each other to a large extent after being placed in the mixing box, which results in a long time spent in mixing the various raw materials, resulting in a relatively low mixing efficiency of the cement raw materials. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a raw material mixing device for cement production.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A raw material mixing device for cement production comprises a mixing drum, a rotating disk, a first driving assembly, a second driving assembly, a primary mixing assembly and a secondary mixing assembly.

[0007] The top edge of the mixing cylinder is provided with a plurality of feed hoppers.

[0008] The rotating disk is arranged inside the mixing barrel, and a plurality of drop openings are provided at intervals at an eccentric position of the rotating disk, and a material receiving plate is hingedly arranged in each group of the drop openings.

[0009] The first driving assembly is disposed on the side wall of the mixing barrel and is used to drive the rotating disk to rotate.

[0010] The primary mixing assembly and the second driving assembly are arranged above the turntable,

[0011] The primary mixing component is used to mix various cement raw materials on the upper part of the material receiving plate.

[0012] When the cement raw materials on the upper part of a group of the material receiving plates are mixed once, the second driving assembly drives the material receiving plates of the group to rotate to a tilted state to open the corresponding material dropping opening.

[0013] The secondary mixing assembly is arranged inside the mixing barrel and below the rotating disk, and is used for performing secondary mixing on the cement raw materials after the primary mixing.

[0014] As a further improvement of the present invention: the first driving assembly includes a motor and a rotating shaft,

[0015] The motor is fixedly mounted on the top of the mixing barrel, one end of the rotating shaft is connected to the output end of the motor, and the other end extends into the interior of the mixing barrel. The rotating shaft is distributed along the axial direction of the mixing barrel, and the turntable is fixedly arranged outside the rotating shaft.

[0016] As a further improvement of the present invention: the primary mixing assembly includes a first stirring rod, a toothed disc, a support shaft and a gear,

[0017] The toothed disc is arranged at an eccentric position above the rotating disc, one end of the support shaft is rotatably connected to the upper part of the toothed disc, and the other end is fixedly connected to the inner top wall of the mixing barrel, a plurality of groups of the first stirring rods are provided, a plurality of the first stirring rods are fixedly arranged at the bottom of the toothed disc, a plurality of the lower ends of the first stirring rods are in contact with the upper surface of the material holding plate, and the gear is fixedly arranged outside the rotating shaft and meshes with the toothed disc.

[0018] As a further improvement of the present invention: the second driving assembly includes a guide column, a second elastic member and a push rod,

[0019] The guide column is fixedly arranged on the inner top wall of the mixing barrel, and the guide column is located at an eccentric position above the turntable. The upper end of the push rod extends into the interior of the guide column and is telescopically matched with the guide column, and the lower end is against the upper surface of the turntable. The second elastic member is arranged inside the guide column to provide elastic support for the push rod.

[0020] As a further improvement of the present invention: a slope is provided on one side of the lower end of the push rod.

[0021] A plurality of V-shaped connecting rods are hingedly provided at the bottom of the turntable, and the plurality of V-shaped connecting rods correspond one-to-one to the plurality of material holding plates. One end of the plurality of V-shaped connecting rods away from the bottom of the turntable is respectively hingedly connected to a group of bottom walls of the material holding plates, and one side of each group of V-shaped connecting rods is connected to the bottom wall of the turntable through a group of first elastic members, and the first elastic members are used to provide elastic pulling force to the V-shaped connecting rods.

[0022] As a further improvement of the present invention: the secondary mixing assembly includes a plurality of second stirring rods, and the plurality of second stirring rods are fixedly arranged on the side wall of the shaft body of the rotating shaft located below the rotating disk.

[0023] As a further improvement of the present invention: a plurality of the feed hoppers are in a strip-shaped structure, and the plurality of the feed hoppers in the strip-shaped structure are distributed radially along the mixing barrel.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the embodiment of the present invention, during the cement production process, the turntable is first driven to rotate by the first driving component, and then the plurality of material receiving plates are driven to rotate, and then different cement raw materials are put into the mixing barrel from different feeding hoppers. After entering the mixing barrel, the different cement raw materials can fall to the upper parts of the rotating plurality of material receiving plates and be evenly spread into a thinner layer structure on the upper parts of the plurality of material receiving plates. Subsequently, the first-stage mixing component is used to sequentially mix the various cement raw materials in the layered structure on the upper parts of the plurality of material receiving plates. When the cement raw materials are mixed once, the plurality of material receiving plates are sequentially rotated to the lower part of the second driving component, and the second driving component The components drive several material holding plates to rotate to an inclined state in sequence, and then open several drop openings in sequence. When the material holding plates rotate to the inclined state, the cement raw materials that have been mixed once on the upper part fall into the bottom of the inner side of the mixing barrel through the corresponding drop openings, and are then mixed for the second time by the secondary mixing component. Compared with the prior art, the first driving component drives the turntable and several material holding plates to rotate, so that the various cement raw materials entering the mixing barrel can be pre-layered, and the subsequent first-level mixing component and the second-level mixing component can be used to mix the various cement raw materials twice, which can improve the mixing effect and mixing efficiency of the cement raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a raw material mixing device for cement production;

[0027] Figure 2 A schematic diagram of the structure inside the mixing barrel of a raw material mixing device for cement production Figure 1 ;

[0028] Figure 3 A schematic diagram of the structure inside the mixing barrel of a raw material mixing device for cement production Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the structure of a turntable in a raw material mixing device for cement production;

[0030] Figure 5 for Figure 2 A magnified schematic diagram of the middle A area;

[0031] Figure 6 for Figure 3 A magnified schematic diagram of the middle B area;

[0032] In the figure: 10-mixing barrel, 101-feed hopper, 102-discharge pipe, 20-turntable, 201-dropping port, 202-holding plate, 203-V-type connecting rod, 204-first elastic member, 30-first driving assembly, 301-motor, 302-rotating shaft, 40-second driving assembly, 401-guide column, 402-second elastic member, 403-top rod, 50-first mixing assembly, 501-first stirring rod, 502-toothed disc, 503-support shaft, 504-gear, 60-secondary mixing assembly. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] See also Figure 1-Figure 6 The present embodiment provides a raw material mixing device for cement production, including a mixing barrel 10, a rotating disk 20, a first driving assembly 30, a second driving assembly 40, a primary mixing assembly 50 and a secondary mixing assembly 60. The top edge of the mixing barrel 10 is provided with a plurality of feed hoppers 101. The rotating disk 20 is arranged inside the mixing barrel 10. The rotating disk 20 is provided with a plurality of spaced drop openings 201 at an eccentric position. A material holding plate 202 is hingedly arranged in each group of the drop openings 201. The first driving assembly 30 is arranged on the side wall of the mixing barrel 10, and is used to drive the rotating disk 20 to rotate. The first-stage mixing assembly 50 and the second driving assembly 40 are arranged above the turntable 20. The first-stage mixing assembly 50 is used to mix various cement raw materials on the upper part of the receiving plate 202. When the cement raw materials on a group of the receiving plates 202 are mixed once, the second driving assembly 40 drives the receiving plates 202 of the group to rotate to an inclined state to open the corresponding drop port 201. The second-stage mixing assembly 60 is arranged inside the mixing barrel 10 and located below the turntable 20, and is used to mix the cement raw materials after the primary mixing for a second time.

[0036] In the cement production process, the turntable 20 is first driven to rotate by the first driving component 30, and then the plurality of material receiving plates 202 are driven to rotate, and then different cement raw materials are put into the mixing barrel 10 from different feeding hoppers 101. After entering the mixing barrel 10, the different cement raw materials can fall to the upper part of the rotating plurality of material receiving plates 202 and be evenly spread into a thinner layer structure on the upper part of the plurality of material receiving plates 202. Subsequently, the first-level mixing component 50 is used to mix the various cement raw materials in the layered structure on the upper part of the plurality of material receiving plates 202 in turn. When the cement raw materials are mixed once, the plurality of material receiving plates 202 are rotated to the bottom of the second driving component 40 in turn. The second driving component 40 drives the plurality of material receiving plates 202 to rotate to an inclined state in turn, and then the plurality of material dropping ports 201 are opened in turn. When the material receiving plates 202 are rotated to an inclined state, the cement raw materials on the upper part of the material receiving plates 202 that have been mixed once fall into the inner bottom of the mixing barrel 10 through the corresponding material dropping ports 201, and are then mixed for the second time by the second-level mixing component 60.

[0037] In one embodiment, the first driving assembly 30 includes a motor 301 and a rotating shaft 302. The motor 301 is fixedly mounted on the top of the mixing barrel 10. One end of the rotating shaft 302 is connected to the output end of the motor 301, and the other end extends into the interior of the mixing barrel 10. The rotating shaft 302 is distributed along the axial direction of the mixing barrel 10, and the turntable 20 is fixedly arranged outside the rotating shaft 302.

[0038] The motor 301 drives the rotating shaft 302 to rotate, which in turn drives the turntable 20 to rotate. When the turntable 20 rotates, it drives the plurality of material receiving plates 202 to rotate. When the plurality of material receiving plates 202 rotate, they can rotate from the positions below the plurality of feed hoppers 101 in sequence, and then receive various cement raw materials. After the material receiving plates 202 receive the cement raw materials, the cement raw materials are spread out into a layered structure on the upper part of the material receiving plates 202.

[0039] In one embodiment, the primary mixing assembly 50 includes a first stirring rod 501, a toothed disc 502, a support shaft 503 and a gear 504. The toothed disc 502 is arranged at an eccentric position above the turntable 20. One end of the support shaft 503 is rotatably connected to the upper part of the toothed disc 502, and the other end is fixedly connected to the inner top wall of the mixing barrel 10. The first stirring rod 501 is provided in a plurality of groups. A plurality of the first stirring rods 501 are fixedly arranged at the bottom of the toothed disc 502, and a plurality of the lower ends of the first stirring rods 501 are in contact with the upper surface of the material receiving plate 202. The gear 504 is fixedly arranged outside the rotating shaft 302 and meshes with the toothed disc 502.

[0040] When the motor 301 drives the rotating shaft 302 to rotate so as to drive the turntable 20 and the plurality of material receiving plates 202 to rotate, the rotating shaft 302 can also drive the gear 504 to rotate, and utilize the meshing action of the gear 504 and the toothed disc 502 to drive the toothed disc 502 to rotate relative to the support shaft 503. When the toothed disc 502 rotates, it drives the plurality of first stirring rods 501 at the bottom thereof to rotate, and utilizes the plurality of first stirring rods 501 to stir the various cement raw materials in a layered structure on the upper part of the material receiving plate 202, so as to achieve a one-time mixing process of the various cement raw materials.

[0041] In one embodiment, the second driving assembly 40 includes a guide column 401, a second elastic member 402 and a push rod 403. The guide column 401 is fixedly arranged on the inner top wall of the mixing barrel 10. The guide column 401 is located at an eccentric position above the turntable 20. The upper end of the push rod 403 extends into the guide column 401 and is telescopically matched with the guide column 401, and the lower end is against the upper surface of the turntable 20. The second elastic member 402 is arranged in the guide column 401 to provide elastic support for the push rod 403.

[0042] After the various cement raw materials on the upper part of a group of receiving plates 202 are stirred by a plurality of first stirring rods 501, the group of receiving plates 202 can be rotated to the bottom of the top rod 403, and the top rod 403 is elastically supported by the second elastic member 402 and moves downward compared to the guide column 401, thereby pressing down the receiving plates 202, so that the receiving plates 202 are rotated to an inclined state, and the corresponding drop openings 201 are opened. When the receiving plates 202 are rotated to an inclined state, the various cement raw materials on the upper part thereof that have been mixed once can drop to the inner bottom of the mixing barrel 10 through the opened drop openings 201.

[0043] In one embodiment, a slope is provided on one side of the lower end of the top rod 403, and a plurality of V-shaped connecting rods 203 are hingedly provided at the bottom of the turntable 20, and the plurality of V-shaped connecting rods 203 correspond one to one with the plurality of material holding plates 202, and the ends of the plurality of V-shaped connecting rods 203 away from the bottom of the turntable 20 are respectively hingedly connected to a group of bottom walls of the material holding plates 202, and one side of each group of the V-shaped connecting rods 203 is connected to the bottom wall of the turntable 20 through a group of first elastic members 204, and the first elastic members 204 are used to provide elastic pulling force to the V-shaped connecting rods 203.

[0044] When the material holding plate 202 rotates from the position below the plurality of feed hoppers 101, the elastic pulling force provided by the first elastic member 204 to the V-shaped connecting rod 203 can make the material holding plate 202 lie flat inside the corresponding drop opening 201, and then close the drop opening 201, so that the material holding plate 202 can stably receive various cement raw materials. When various cement raw materials on the upper part of a group of material holding plates 202 are stirred by the first stirring rod 501, the group of material holding plates 202 rotates to the bottom of the top rod 403, and the top rod 403 is elastically supported by the second elastic member 402 to further stir the group of material holding plates 202. 02 pushes down, so that the group of material receiving plates 202 rotates downward to an inclined state, and the various cement raw materials located on the upper part of the group of material receiving plates 202 after a mixing slide off the edge of the group of material receiving plates 202 in an inclined state, and fall to the bottom of the inner side of the mixing barrel 10. When the above-mentioned material receiving plates 202 rotate to an inclined state, the V-shaped connecting rod 203 rotates compared to the bottom wall of the turntable 20, and the first elastic member 204 is stretched by force; as the group of material receiving plates 202 continues to rotate, the top rod 403 can slide to the edge of the upper surface of the group of material receiving plates 202, and at this time, the inclined surface on one side of the lower end of the top rod 403 can act on the corresponding The wall of the blanking port 201 can be pushed by the inclined surface to push the push rod 403 so that the push rod 403 moves up compared with the guide column 401, and the second elastic member 402 is compressed by force until the lower end of the push rod 403 is removed from the upper part of the group of material holding plates 202. The first elastic member 204 corresponding to the group of material holding plates 202 pulls the corresponding V-shaped connecting rod 203, so that one end of the V-shaped connecting rod 203 rotates in the opposite direction compared with the bottom wall of the turntable 20, thereby driving the group of material holding plates 202 to rotate in the opposite direction into the corresponding blanking port 201 and keep it in a flat state again, so that the group of material holding plates 202 can continue to smoothly receive various cement raw materials again when it passes under several feed hoppers 101 again in the future; after the lower end of the push rod 403 is removed from the upper part of the current material receiving plate 202, the lower end of the push rod 403 acts on the upper surface of the turntable 20 and slides compared to the upper surface of the turntable 20 until the lower end of the push rod 403 acts on the subsequent material receiving plate 202, and can continue to push down the subsequent material receiving plate 202, so that the subsequent material receiving plate 202 continues to rotate to an inclined state, so that the various cement raw materials on the upper part of the subsequent material receiving plate 202 that have been mixed once slide to the bottom of the inner side of the mixing barrel 10.

[0045] In one embodiment, the first elastic member 204 and the second elastic member 402 may be springs or metal springs, which are not limited herein.

[0046] In one embodiment, the secondary mixing assembly 60 includes a plurality of second stirring rods, and the plurality of second stirring rods are fixedly disposed on the side wall of the shaft 302 below the rotating disk 20 .

[0047] While the motor 301 drives the rotating shaft 302 to rotate and then drives the turntable 20 and the plurality of first stirring rods 501 to rotate, the rotating shaft 302 can also drive the plurality of second stirring rods to rotate. When the plurality of second stirring rods rotate, the cement raw materials that fall to the bottom position inside the mixing barrel 10 are stirred again, thereby achieving secondary mixing of the cement raw materials.

[0048] In one embodiment, several of the feed hoppers 101 are in a strip-shaped structure, and the several feed hoppers 101 in a strip-shaped structure are radially distributed along the mixing barrel 10, so that the various cement raw materials entering the mixing barrel 10 through the several feed hoppers 101 can be evenly spread on the upper part of the containing plate 202, so as to improve the subsequent mixing effect of the cement raw materials.

[0049] In one embodiment, a discharge pipe 102 is disposed at the bottom of the mixing barrel 10 , and a discharge valve (not shown in the figure) is disposed inside the discharge pipe 102 .

[0050] When the cement raw materials are mixed, the discharge valve can be opened to discharge the mixed cement raw materials in the mixing drum 10 from the discharge pipe 102 .

[0051] In the embodiment of the present invention, during the cement production process, the turntable 20 is first driven to rotate by the first driving assembly 30, and then the plurality of material receiving plates 202 are driven to rotate, and then different cement raw materials are put into the mixing barrel 10 from different feeding hoppers 101. After entering the mixing barrel 10, the different cement raw materials can fall onto the upper part of the rotating plurality of material receiving plates 202 and be evenly spread into a thinner layer structure on the upper part of the plurality of material receiving plates 202. Subsequently, the primary mixing assembly 50 is used to sequentially mix the various cement raw materials in the layered structure on the upper part of the plurality of material receiving plates 202. After the cement raw materials are mixed once, the plurality of material receiving plates 202 are sequentially rotated to the lower part of the second driving assembly 40, and the second driving assembly 40 is used to rotate the plurality of material receiving plates 202 to the lower part of the mixing barrel 10. Component 40 drives several material holding plates 202 to rotate to an inclined state in sequence, and then opens several material dropping ports 201 in sequence. When the material holding plates 202 rotate to an inclined state, the cement raw materials after the primary mixing on the upper part thereof fall into the inner bottom of the mixing barrel 10 through the corresponding material dropping ports 201, and are then mixed for the second time by the secondary mixing component 60. Compared with the prior art, the first driving component 30 drives the turntable 20 and several material holding plates 202 to rotate, so that the various cement raw materials entering the mixing barrel 10 can be pre-layered, and the subsequent primary mixing component 50 and the secondary mixing component 60 can perform the secondary mixing of various cement raw materials, thereby improving the mixing effect and mixing efficiency of the cement raw materials.

[0052] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A raw material mixing device for cement production, characterized in that: It includes a mixing barrel, a rotating disk, a first driving assembly, a second driving assembly, a primary mixing assembly and a secondary mixing assembly. The top edge of the mixing cylinder is provided with a plurality of feed hoppers. The rotating disk is arranged inside the mixing barrel, and a plurality of drop openings are provided at intervals at an eccentric position of the rotating disk, and a material receiving plate is hingedly arranged in each group of the drop openings. The first driving assembly is disposed on the side wall of the mixing barrel and is used to drive the rotating disk to rotate. The primary mixing assembly and the second driving assembly are arranged above the turntable, The primary mixing component is used to mix various cement raw materials on the upper part of the material receiving plate. When the cement raw materials on the upper part of a group of the material receiving plates are mixed once, the second driving assembly drives the material receiving plates of the group to rotate to a tilted state to open the corresponding material dropping opening. The secondary mixing assembly is arranged inside the mixing barrel and below the rotating disk, and is used for secondary mixing of the cement raw materials after the primary mixing. The first driving assembly includes a motor and a rotating shaft. The motor is fixedly mounted on the top of the mixing barrel, one end of the rotating shaft is connected to the output end of the motor, and the other end extends into the inside of the mixing barrel. The rotating shaft is distributed along the axis direction of the mixing barrel, and the rotating disk is fixedly arranged outside the rotating shaft. The second driving assembly includes a guide column, a second elastic member and a push rod. The guide column is fixedly arranged on the inner top wall of the mixing barrel, and the guide column is located at an eccentric position above the turntable. The upper end of the push rod extends into the interior of the guide column and is telescopically matched with the guide column, and the lower end is against the upper surface of the turntable. The second elastic member is arranged inside the guide column to provide elastic support for the push rod.

2. A raw material mixing device for cement production according to claim 1, characterized in that: The primary mixing assembly includes a first stirring rod, a toothed disc, a support shaft and a gear. The toothed disc is arranged at an eccentric position above the rotating disc, one end of the support shaft is rotatably connected to the upper part of the toothed disc, and the other end is fixedly connected to the inner top wall of the mixing barrel, a plurality of groups of the first stirring rods are provided, a plurality of the first stirring rods are fixedly arranged at the bottom of the toothed disc, a plurality of the lower ends of the first stirring rods are in contact with the upper surface of the material holding plate, and the gear is fixedly arranged outside the rotating shaft and meshes with the toothed disc.

3. A raw material mixing device for cement production according to claim 1, characterized in that: A slope is provided on one side of the lower end of the push rod. A plurality of V-shaped connecting rods are hingedly provided at the bottom of the turntable, and the plurality of V-shaped connecting rods correspond one-to-one to the plurality of material holding plates. One end of the plurality of V-shaped connecting rods away from the bottom of the turntable is respectively hingedly connected to a group of bottom walls of the material holding plates, and one side of each group of V-shaped connecting rods is connected to the bottom wall of the turntable through a group of first elastic members, and the first elastic members are used to provide elastic pulling force to the V-shaped connecting rods.

4. A raw material mixing device for cement production according to claim 1, characterized in that: The secondary mixing assembly includes a plurality of second stirring rods, and the plurality of second stirring rods are fixedly arranged on the side wall of the shaft body of the rotating shaft located below the rotating disk.

5. A raw material mixing device for cement production according to claim 1, characterized in that: A plurality of the feed hoppers are in a strip-shaped structure, and the plurality of feed hoppers in the strip-shaped structure are distributed radially along the mixing barrel.

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