Auxiliary screening device of autogenous mill

Abstract

The utility model relates to the technical field of autogenous mills, and discloses an auxiliary screening device of an autogenous mill, which comprises a screening pipe and a support frame which are mounted on a discharge pipe of the autogenous mill, and the screening pipe is fixedly connected to one side of the discharge pipe and penetrates through the support frame. The auxiliary screening device of the autogenous mill comprises a supporting frame, a screening pipe is fixedly connected to the middle of the supporting frame, a screen is detachably connected to the outer circle face of the screening pipe and used for grading materials, a partition plate is fixedly connected to the inner wall of the screening pipe, a collecting hopper is fixedly connected to the middle of the supporting frame, and the collecting hopper is located at the bottom of the screening pipe and used for collecting the materials. Through the cooperative arrangement of the discharging pipe, the screening pipe and the screen, when the autogenous mill discharges materials, the screening pipe can primarily screen the materials, the materials reaching the needed size can directly fall down from the screening pipe, the subsequent repeated steps are reduced, meanwhile, the screen is detachably arranged, and the screening efficiency is improved. And the screen with the corresponding aperture can be selected according to the processing requirements of different batches.

Description

TECHNICAL FIELD

[0001] The utility model relates to a self grinder technical field, concretely relates to a kind of auxiliary screening device of self grinder. BACKGROUND

[0002] Self grinder is the core equipment in the field of mineral processing, building material production etc., and its core function is to realize the comminution of material through the impact between material itself or medium, grinding, after completing comminution operation, the traditional self grinder still needs to carry out particle size sorting to material through external classification equipment (such as vibrating screen, air flow sorting machine etc.).

[0003] Since part of the material output by self grinder has met the requirements, when the part of material meeting the requirements of particle size enters subsequent classification equipment again, it will affect the processing efficiency of subsequent classification equipment, causing the accumulation of material in classification equipment, meanwhile, the discharge and screening links of existing self grinder are separated, and a large amount of dust is often generated during discharge process, which not only pollutes the working environment, but also may affect the health of operator, so an equipment is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides an auxiliary screening device of self grinder, which solves the problems that existing self grinder cannot separate material meeting requirements and a large amount of dust is generated during screening process when discharging.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: an auxiliary screening device of self grinder, comprising a screening pipe and a support frame for being installed on a discharge pipe of self grinder, the screening pipe is fixedly connected to one side of the discharge pipe and penetrates the support frame, the outer cylindrical surface of the screening pipe is detachably connected with a screen mesh for grading material, and the inner wall of the screening pipe is fixedly connected with a partition plate;

[0006] The middle part of the support frame is fixedly connected with a collecting hopper, the collecting hopper is located at the bottom of the screening pipe to collect material, the inner wall of the top of the support frame is provided with a cover plate capable of being covered above the arc-shaped screen mesh, one side of the cover plate is provided with a driving mechanism to drive the cover plate to lift and fall, and the top of the cover plate is fixedly connected with an air extraction pipe to extract dust.

[0007] Optionally, the partition plates are arranged in a plurality of numbers and are arranged alternately on the inner wall of the screening pipe.

[0008] Optionally, a slot is formed in the middle part of the screening pipe, one end of the screen mesh is fixedly connected with a plug plate, the plug plate is inserted into the slot, and a fixing bolt is arranged on the top of the screening pipe and is threadedly connected with the plug plate to fix the screen mesh on the surface of the screening pipe.

[0009] Optionally, the bottom of the collecting hopper is provided with a discharging port, and the inner bottom wall of the collecting hopper is provided with an inclination angle towards the discharging port.

[0010] Optionally, the cover plate is arc-shaped and consistent with the arc of the screening pipe.

[0011] Optionally, the driving mechanism comprises a threaded rod and a driving motor, the driving motor is fixedly connected to one side of the support frame, the threaded rod is rotatably connected to the side of the support frame close to the cover plate, the output end of the driving motor is engaged with the top of the threaded rod through a transmission gear, and one side of the cover plate is threadedly connected with the threaded rod.

[0012] Optionally, the other side of the inner wall of the support frame is provided with an auxiliary rod, and the other side of the cover plate is slidably connected with the outer cylindrical surface of the auxiliary rod.

[0013] The auxiliary screening device of the autogenous mill has the following beneficial effects:

[0014] The auxiliary screening device of the autogenous mill is provided with a discharging pipe, a screening pipe and a screen mesh, when the autogenous mill discharges materials, the screening pipe can preliminarily screen the materials, the materials with the required size can directly fall from the screening pipe, the subsequent repeated steps are reduced, meanwhile, the screen mesh is detachably arranged, the screen mesh with a corresponding aperture can be selected according to the needs of different batches of processing, the universality of the device is improved, the cover plate, the driving mechanism and the air suction pipe are cooperatively arranged, in the screening process, air can be sucked away through the air suction pipe, the dust flying into the working environment is reduced, the cleanliness of the working environment is improved, the height of the cover plate can be adjusted through the further cooperation of the driving mechanism, the cover plate is buckled on the screening pipe, and the efficiency of sucking away the dust flying is higher. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic diagram of the utility model;

[0016] Fig. 2 It is a structural schematic diagram of the utility model in the use process;

[0017] Fig. 3 It is a structural schematic diagram of the utility model in the use process;

[0018] Fig. 4 It is a structural schematic diagram of the utility model in the use process;

[0019] In the figure: 1, discharge pipe; 2, screening pipe; 3, support frame; 4, screen; 5, partition; 6, collecting hopper; 7, cover plate; 8, suction pipe; 9, slot; 10, plug; 11, fixing bolt; 12, discharge port; 13, feeding belt; 14, threaded rod; 15, driving motor; 16, auxiliary rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figs. 1 to 4 The utility model provides a kind of technical scheme: a kind of auxiliary screening device of autogenous mill, including the screening pipe 2 and support frame 3 for installing on autogenous mill discharge pipe 1, screening pipe 2 is fixedly connected on the side of discharge pipe 1 and will support frame 3 penetrate, the outer cylindrical surface of screening pipe 2 is detachably connected with screen 4 to classify material, the inner wall of screening pipe 2 is fixedly connected with partition 5.

[0022] The middle part of support frame 3 is fixedly connected with collecting hopper 6, and collecting hopper 6 is located at the bottom of screening pipe 2 to collect materials, and the inner wall of the top of support frame 3 is provided with 7 which can be covered above the arc-shaped screen 4, one side of the cover plate 7 is provided with a driving mechanism to drive the cover plate 7 to rise and fall, and the top of the cover plate 7 is fixedly connected with a suction pipe 8 to suck away dust.

[0023] The discharge pipe 1 is fixed at the discharge end of the autogenous mill, the screening pipe 2 is fixed on the discharge pipe 1, the screen 4 is detachably connected with the screening pipe 2, which facilitates the selection of screen 4 with different pore sizes according to different needs, the partition 5 is semicircular and is arranged alternately in the screening pipe 2, which can slow down the flow rate of the material and prolong the residence time of the material in the screening pipe 2, so that the material meeting the requirements in the material falls from the screen 4 as much as possible, improving the screening efficiency, and the material at the end of screening is discharged from the other end of the screening pipe 2, and the material falling from the screen 4 falls into the collecting hopper 6 for collection, the cover plate 7 is buckled on the top of the screening pipe 2, the suction pipe 8 at the top can suck away the air mixed with dust during the screening process, reducing the escaping dust, and the driving mechanism can drive the cover plate 7 to rise and fall, which can raise the cover plate 7 during the replacement of the diameter of the screen 4, reducing the shielding of the working area.

[0024] In the embodiment, as a preferred solution, the partition plates 5 are arranged in a circular arc shape and in a plurality, the plurality of partition plates 5 are arranged staggeredly on the inner wall of the screening pipe 2, the middle part of the screening pipe 2 is provided with a slot 9, one end of the screen 4 is fixedly connected with a plug plate 10, the plug plate 10 is inserted with the slot 9, the top of the screening pipe 2 is provided with a fixing bolt 11, the fixing bolt 11 is threadedly connected with the plug plate 10 to fix the screen 4 on the surface of the screening pipe 2.

[0025] After the plug plate 10 is inserted into the slot 9, the threaded hole on the plug plate 10 is aligned with the through hole above the slot 9, and after the fixing bolt 11 is threadedly connected through the through hole and the threaded hole, the screen 4 can be fixed on the screening pipe 2, the two screening pipes 2 are both semicircular, and the two screening pipes 2 are spliced to wrap the outer wall of the screening pipe 2, and the plurality of partition plates 5 can reduce the conveying speed of the materials and prolong the time of the materials in the screening pipe 2.

[0026] In the embodiment, as a preferred solution, the bottom of the collecting hopper 6 is provided with a discharging port 12, the inner bottom wall of the collecting hopper 6 is provided with an inclination angle towards the discharging port 12, and the bottom of the collecting hopper 6 is provided with a feeding belt 13 to output the materials.

[0027] The materials falling into the collecting hopper 6 are discharged from the discharging port 12 and further fall on the feeding belt 13, and the materials in the collecting hopper 6 are discharged through the feeding belt 13.

[0028] In the embodiment, as a preferred solution, the cover plate 7 is arc-shaped and consistent with the arc of the screening pipe 2, the driving mechanism comprises a threaded rod 14 and a driving motor 15, the driving motor 15 is fixedly connected to one side of the support frame 3, the threaded rod 14 is rotatably connected to one side of the support frame 3 close to the cover plate 7, the output end of the driving motor 15 is meshed with the top of the threaded rod 14 through a transmission gear, one side of the cover plate 7 is threadedly connected with the threaded rod 14, and the other side of the inner wall of the support frame 3 is provided with an auxiliary rod 16, and the other side of the cover plate 7 is slidingly connected with the outer circular surface of the auxiliary rod 16.

[0029] The gear of the output end of the driving motor 15 is driven to rotate, and the threaded rod 14 is further driven to rotate through the gear, one end of the cover plate 7 is threadedly connected with the threaded rod 14 in the rotating process of the threaded rod 14, the threaded rod 14 can drive the cover plate 7 to move up and down along the direction of the threaded rod 14, the cover plate 7 is lowered during screening, and the cover plate 7 is raised during maintenance, the other end of the cover plate 7 is slidingly connected with the auxiliary rod 16, the auxiliary rod 16 supports the cover plate 7 on the other side, improves the stability of the cover plate 7 in the sliding process, and reduces the possibility of inclination of the cover plate 7.

[0030] In the utility model, the working steps of the device are as follows:

[0031] 1、According to the required material particle size, the corresponding size of screen 4 is selected, the screen 4 is fixed on the screening pipe 2 by using the fixing bolt 11, after being fixed, the driving motor 15 is started, the cover plate 7 is lowered, and the cover plate 7 is buckled on the collecting hopper 6;

[0032] 2、The suction pipe 8 above the cover plate 7 is connected with the external collecting equipment, and the dust generated in the screening process is sucked away;

[0033] 3、After being adjusted, the self-mill is started to grind, the required material will fall from the screen 4, and is conveyed out through the bottom feeding belt 13;

[0034] 4、When the screen 4 aperture needs to be replaced, the driving motor 15 is started, the cover plate 7 is lifted, and then the screen 4 can be replaced.

[0035] The specific embodiments provided by the utility model are described in detail above, specific examples are applied in this paper to describe the principle and implementation mode of the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific embodiment and application range will be changed, and according to the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. An auxiliary screening device for an autogenous mill, characterized in that: The application relates to a screening pipe (2) and a support frame (3) for being installed on a self-grinding machine discharge pipe (1), the screening pipe (2) is fixedly connected to one side of the discharge pipe (1) and penetrates the support frame (3), the outer circular surface of the screening pipe (2) is detachably connected with a screen (4) for grading materials, and the inner wall of the screening pipe (2) is fixedly connected with a partition plate (5). The middle part of the support frame (3) is fixedly connected with a collecting hopper (6), the collecting hopper (6) is located at the bottom of the screening pipe (2) and is used for collecting materials, the inner wall of the top of the support frame (3) is provided with a cover plate (7) capable of being covered above the arc-shaped screen (4), one side of the cover plate (7) is provided with a driving mechanism for driving the cover plate (7) to ascend and descend, and the top of the cover plate (7) is fixedly connected with an air exhaust pipe (8) for exhausting dust.

2. An auxiliary screening device for a mill according to claim 1, characterized in that: The partition plate (5) is arranged in a circular arc shape and in plurality, and the plurality of partition plates (5) are arranged in an interlaced mode on the inner wall of the screening pipe (2).

3. An auxiliary screening device for a mill according to claim 2, characterised in that: The middle part of the screening pipe (2) is provided with a slot (9), one end of the screen (4) is fixedly connected with a plug plate (10), the plug plate (10) is inserted into the slot (9), the top of the screening pipe (2) is provided with a fixing bolt (11), and the fixing bolt (11) is in threaded connection with the plug plate (10) so as to fix the screen (4) on the surface of the screening pipe (2).

4. An auxiliary screening device for a mill as claimed in claim 1, characterized in that: The bottom of the collecting hopper (6) is provided with a discharging port (12), the inner bottom wall of the collecting hopper (6) is provided with an inclination angle towards the discharging port (12), and the bottom of the collecting hopper (6) is provided with a feeding belt (13) for outputting materials.

5. An auxiliary screening device for a mill according to any one of claims 1 - 4, characterized in that: The cover plate (7) is arc-shaped and consistent with the arc of the screening pipe (2).

6. An auxiliary screening device for a mill according to claim 5, characterised in that: The driving mechanism comprises a threaded rod (14) and a driving motor (15), the driving motor (15) is fixedly connected to one side of the support frame (3), the threaded rod (14) is rotationally connected to one side of the support frame (3) close to the cover plate (7), the output end of the driving motor (15) is in meshing connection with the top of the threaded rod (14) through a transmission gear, and one side of the cover plate (7) is in threaded connection with the threaded rod (14).

7. An auxiliary screening device for a mill according to claim 6, characterised in that: The other side of the inner wall of the support frame (3) is provided with an auxiliary rod (16), and the other side of the cover plate (7) is in sliding connection with the outer circular surface of the auxiliary rod (16).

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