CN217830263U - Coal mill integrating grinding and screening for laboratory - Google Patents
Coal mill integrating grinding and screening for laboratory Download PDFInfo
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- CN217830263U CN217830263U CN202222066739.5U CN202222066739U CN217830263U CN 217830263 U CN217830263 U CN 217830263U CN 202222066739 U CN202222066739 U CN 202222066739U CN 217830263 U CN217830263 U CN 217830263U
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Abstract
The utility model relates to a coal pulverizer technical field specifically discloses a laboratory is with integrative coal pulverizer of mill sieve, including box, rotation install in the box coal grinding subassembly, demountable installation in the box and be located the screening subassembly of coal grinding subassembly top, be provided with on the screening subassembly and form the coal grinding chamber between sieve mesh and the bottom half, the coal grinding subassembly is located the coal grinding intracavity. The utility model discloses can effectually realize carrying out the mill sieve of the coal body simultaneously, avoid the excessive wearing and tearing of the coal body that accords with the particle diameter requirement problem that the oxidation appears to and the extravagant problem of coal sample appears.
Description
Technical Field
The utility model relates to a coal pulverizer technical field, more specifically say, relate to a coal pulverizer that mill sieve is integrative in laboratory.
Background
In the laboratory research process related to coal mines, in order to research various properties of coal bodies, the coal bodies are generally required to be crushed and sieved into different particle sizes. In this in-process, the instrument that often uses is the coal pulverizer, with the broken certain time of coal, then pours out and adopts different mesh sieve to sieve, however the broken degree is generally for considering that the experience controls the coal grinding time, and the time has been short often can not reach required broken standard, and the time has been long can be broken excessively, and the phenomenon that the coal pulverizer generates heat not only can cause the waste of buggy, still can cause the buggy oxidation, influences the quality of coal, causes follow-up experimental error.
In order to solve the above-mentioned problem, improve the accuracy nature and the convenience of coal grinding, at present urgent need to design one kind can be with the crushing of coal and the combined type coal pulverizer of screening set in a device, realize broken limit screening simultaneously, ensure the saving of coal and use and ensure the quality of coal, improve the high-efficient convenience of coal grinding operation process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a laboratory is with integrative coal pulverizer of mill sieve is provided, can effectually realize carrying out the mill sieve of the coal body simultaneously, avoided the excessive wearing and tearing of the coal body that accords with the particle diameter requirement problem that the oxidation appears to and the extravagant problem of coal sample appears.
The utility model provides a solution that technical problem adopted is:
the utility model provides a laboratory is with integrative coal pulverizer of grinding sieve, includes the box, rotates the coal grinding subassembly of installing in the box, demountable installation in the box and be located the screening subassembly of coal grinding subassembly top, be provided with on the screening subassembly and form the coal grinding chamber between sieve mesh and the bottom half, the coal grinding subassembly is located the coal grinding intracavity.
When the coal grinding device is used, firstly, the coal body is placed at the bottom of the box body and is positioned in the coal grinding cavity, and then the screening component is installed in the box body;
during coal grinding, the coal grinding assembly rotates to crush the coal body to form a small particle structure, the centrifugal force generated by rotation of the coal grinding assembly enables the small particle structure to move to one side of the screening assembly, and the small particle structure with the particle size smaller than the size of a screen hole can penetrate through the screen hole; the small particle structure meeting the particle size requirement can not be excessively worn in the coal grinding cavity, and the small particle structure is effectively oxidized by high temperature generated during coal grinding, so that the waste of coal bodies is reduced; the crushing and screening of the coal body are realized effectively; simple structure, practicality are strong.
In some possible embodiments, the coal is crushed and sieved for efficient implementation;
the screening component comprises a fixed plate which is arranged at the bottom of the box body and is provided with a through groove, and a mesh screen which is arranged on the fixed plate and is positioned above the through groove; the coal grinding assembly is located in the through groove.
In some possible embodiments, the coal body with a small particle structure is screened for effective realization;
the mesh screen is hemispherical and is a shell structure provided with a plurality of mesh holes, and an opening of the mesh screen is arranged on one side close to the fixed plate.
In some of the possible embodiments, the first and second,
the center of the shell structure is on the same straight line with the rotation axis of the coal grinding assembly, and the straight line is perpendicular to the fixing plate.
In some of the possible embodiments, the first and second,
the screening subassembly is still including installing on the fixed plate and the fixed sleeve of suit in the mesh screen outside.
In some possible embodiments, in order to effectively realize multi-stage screening of small particle structures, the small particle structures with different particle sizes can be classified and screened, and small particle structures with multiple particle sizes are obtained;
the screening assemblies are multiple groups and are sequentially stacked at the bottom of the box body, and a coal particle storage cavity is formed between every two adjacent screening assemblies;
the sizes of the through grooves in the multiple groups of screening assemblies and the diameter of the shell structure are sequentially increased from the side close to the bottom of the box body to the side far away from the bottom of the box body, and the sizes of the sieve pores in the multiple groups of mesh screens are sequentially decreased from the side close to the bottom of the box body to the side far away from the bottom of the box body; one side of the plurality of groups of fixed sleeves far away from the bottom of the box body is on the same plane.
In some possible embodiments, in order to avoid the coal body small particle structure from flying out of the box body after passing through the screening assemblies in the crushing process, and effectively ensure that the screening assemblies are installed more firmly in the crushing process;
the box includes that the top is provided with the case body of import, is used for sealing the import and stretches into the top cap of this internal and fixed sleeve butt of case.
In some of the possible embodiments, the first and second,
the outside of top cap is provided with the external screw thread, top cap and box spiro union.
In some possible embodiments, to efficiently achieve the breaking of the coal body;
the coal grinding assembly comprises a crushing blade rotatably arranged in a coal grinding cavity, and a driving motor which is positioned on the outer side of the bottom of the box body and is in transmission connection with the crushing blade in the box body.
In some of the possible embodiments, the first and second,
the rotation axis of the crushing blade is in the same straight line with the center of the coal grinding cavity.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can effectively realize that the crushed small particle structure can be continuously screened under the action of the centrifugal force generated by the coal grinding component while the coal body is crushed; compared with the prior art, the crushing and screening are carried out firstly, so that the working efficiency is greatly improved, the secondary crushing of the small particle structure which meets the requirements and is generated in the crushing process is avoided, the oxidation of the small particle structure caused by the excessive crushing of the small particle structure which meets the requirements and the heating of the coal grinding assembly is avoided, the experiment requirements are not met, and errors are caused in later experiments;
the utility model can simultaneously carry out multi-stage screening on the small particle structure by arranging a plurality of groups of screening components; the experimental requirements for coal bodies with different particle sizes are met;
because the utility model can not generate excessive oxidation to the crushed coal, the utilization rate of the coal is effectively improved, and the waste of the coal is avoided;
the utility model discloses simple structure, usability are strong.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic top view of the middle screen assembly of the present invention;
FIG. 3 is a schematic illustration of a set of screen assemblies according to the present invention;
wherein: 1. a box body; 2. a coal grinding assembly; 3. a screen assembly; 31. a housing structure; 311. screening holes; 32. a fixing plate; 321. a through groove; 33. a fixed sleeve; 4. and a top cover.
Detailed Description
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in detail below.
As shown in fig. 1-3:
the utility model provides a laboratory is with integrative coal pulverizer of grinding sieve, includes box 1, rotates and installs coal grinding component 2 in box 1, demountable installation and is located the screening subassembly 3 of coal grinding component 2 top in box 1, be provided with on the screening subassembly 3 and form the coal grinding chamber between sieve mesh 311 and the box 1 bottom, coal grinding component 2 is located the coal grinding intracavity.
When the coal grinding device is used, firstly, a coal body is placed at the bottom of the box body 1 and is positioned in the coal grinding cavity, and then the screening component 3 is installed in the box body 1;
during coal grinding, the coal grinding component 2 rotates to crush the coal body to form a small particle structure, the centrifugal force generated by the rotation of the coal grinding component 2 enables the small particle structure to move towards one side of the screening component 3, and the small particle structure with the particle size smaller than the size of the screen hole 311 can pass through the screen hole 311; the small particle structure meeting the particle size requirement can not be excessively worn in the coal grinding cavity, and the small particle structure is effectively oxidized by high temperature generated during coal grinding, so that the waste of coal bodies is reduced; the coal body is effectively crushed and screened at the same time; simple structure, practicality are strong.
In some possible embodiments, the coal is crushed and sieved for efficient implementation;
the screening assembly 3 comprises a fixing plate 32 which is arranged at the bottom of the box body 1 and is provided with a through groove 321, and a mesh screen which is arranged on the fixing plate 32 and is positioned above the through groove 321; the coal grinding assembly 2 is located in the through groove 321.
In some possible embodiments, the coal body with a small particle structure is screened for effective realization;
the mesh screen is hemispherical and is a shell structure 31 provided with a plurality of mesh holes 311, and the opening of the mesh screen is arranged at one side close to the fixing plate 32.
Preferably, the through groove 321 is a circular structure and is the same as the inner diameter of the shell, the coal body is located in the through groove 321, the hemispherical groove in the shell is communicated with the through groove 321 to form a coal grinding cavity, the center of the coal grinding cavity is on the same straight line with the rotation axis of the coal grinding assembly 2, and the through groove 321 is circular, so that the coal body in the through groove 321 can be fully crushed by the coal grinding assembly 2 during crushing;
certainly, the through groove 321 can also be a square, triangular or polygonal structure, and the crushing amount can be greatly reduced only by adopting the structure, so that the coal body at the corner part of the through groove 321 can not be effectively crushed;
the shell structure 31 is hemispherical, so that the distance between the rotation center of the coal grinding assembly 2 and the shell is equal, coal bodies with the same particle size can penetrate through the shell structure 31, partial small particle structures cannot penetrate through the sieve holes 311 due to inconsistent strokes under the action of centrifugal force, and the small particles still fall into the coal grinding cavity under the action of gravity after flying for a certain distance, so that the small particles falling into the coal grinding cavity are continuously crushed and oxidized, and the waste of the coal bodies is caused;
in some possible embodiments, to efficiently achieve the breaking of the coal body;
the center of the shell structure 31 is aligned with the rotation axis of the coal grinding unit 2, and the line is perpendicular to the fixing plate 32.
In some of the possible embodiments, the first and second,
In some possible embodiments, in order to effectively realize multi-stage screening of small particle structures, the small particle structures with different particle sizes can be classified and screened to obtain small particle structures with multiple particle sizes;
the screening assemblies 3 are multiple groups and are sequentially stacked at the bottom of the box body 1, and a coal particle storage cavity is formed between two adjacent screening assemblies 3;
the sizes of the through grooves 321 in the multiple groups of screening assemblies 3 and the diameter of the shell structure 31 are sequentially increased from the side close to the bottom of the box body 1 to the side far from the bottom of the box body 1, and the sizes of the screen holes 311 in the multiple groups of screen screens are sequentially decreased from the side close to the bottom of the box body 1 to the side far from the bottom of the box body 1; the sides of the multiple sets of fixing sleeves 33 far away from the bottom of the box body 1 are on the same plane.
In some possible embodiments, to avoid the coal body small particle structure from flying out of the box 1 after passing through the screen assemblies 3 during the crushing process, and to ensure that the screen assemblies 3 are installed more firmly during the crushing process;
the box body 1 comprises a box body with an inlet arranged at the top and a top cover 4 used for sealing the inlet and extending into the box body to be abutted against the fixing sleeve 33. The outside of top cap 4 is provided with the external screw thread, top cap 4 and box 1 spiro union.
The fixed sleeve 33 is arranged on the fixed plate 32 and is sleeved in the box body 1;
preferably, the box body 1 is of a cylindrical structure;
the cylindrical sleeves in a plurality of screen assemblies 3 are arranged coaxially and connected to their respective retaining plates 32.
The shell structure 31 close to one side of the bottom of the box body 1 and the bottom of the box body 1 form a coal grinding cavity, the diameters of the through grooves 321 are sequentially increased, the centers of all the shell structures 31 are concentric, gaps exist in the supports of the shell structures 31, the outer side of the shell structure 31 close to one side of the bottom of the box body 1 and the shell structure 31 located above the outer side of the shell structure 31 form a storage cavity with a screened small particle structure, namely, a storage cavity is formed between two groups of adjacent shell structures 31, and a storage cavity is formed between the outermost shell structure 31 and the corresponding fixed sleeve 33.
In some possible embodiments, to efficiently achieve the breaking of the coal body;
the coal grinding assembly 2 comprises a crushing blade rotatably arranged in a coal grinding cavity, and a driving motor which is positioned on the outer side of the bottom of the box body 1 and is connected with the crushing blade in a transmission manner by stretching into the box body 1.
The blade is driven by the driving motor to rotate so as to crush the coal in the coal grinding cavity, and the centrifugal force generated by the blade during coal grinding enables part of the crushed small particle structure to move to one side of the shell structure 31, so that the small particle structure which can penetrate through the structure with the particle size smaller than the sieve pore 311 can penetrate through the sieve pore 311 and fly out.
An output shaft of the driving motor penetrates through the bottom of the box body 1 to be connected with a blade seat arranged on the blade, and the blade is driven to crush the coal body.
In some of the possible embodiments, the first and second,
the rotation axis of the crushing blade is in the same straight line with the center of the coal grinding cavity.
When the screening device is used, coal bodies are loaded in the through grooves 321, then the screening assemblies 3 are sequentially installed at the bottom of the box body 1, the top cover 4 is covered, and the top cover 4 and the fixing sleeve 33 are abutted to one side close to each other; then control the blade through driving motor and carry out the breakage to the coal body in grinding the coal intracavity, the granule after the breakage passes sieve mesh 311 under the rotatory centrifugal force that produces of blade, realizes the screening, and under the granule structure action of gravity, the granule structure of different particle diameters will get into different storage intracavity and save, realizes the screening.
The utility model discloses a change the screening subassembly 3 of different mesh numbers for prepare the coal sample of different particle diameters. In the crushing process, due to the centrifugal force generated by the rapid rotation of the blade, small particles meeting the particle size requirement can enter the storage cavity, so that the oxidation problem of excessive abrasion of the coal sample and the waste problem of the coal sample are avoided, the preparation efficiency of the coal sample is improved to a great extent, and the quality of the coal is ensured.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. The utility model provides a laboratory is with integrative coal pulverizer of grinding sieve, its characterized in that includes the box, rotates the coal grinding subassembly of installing in the box, demountable installation in the box and be located the screening subassembly of coal grinding subassembly top, form the coal grinding chamber between screening subassembly and the bottom half, the coal grinding subassembly is located the coal grinding intracavity.
2. The laboratory sieve integrated coal mill according to claim 1, wherein the sieve assembly comprises a fixed plate installed at the bottom of the casing and provided with a through groove, and a mesh screen installed on the fixed plate and located above the through groove; the coal grinding assembly is located in the through groove.
3. The laboratory screen integrated coal mill of claim 2, wherein the mesh screen is hemispherical and is a housing structure provided with a plurality of screen holes, and the openings of the mesh screen are arranged on one side close to the fixed plate.
4. The laboratory sieve integrated coal mill of claim 3, wherein the center of the sphere of the housing structure is collinear with the axis of rotation of the coal grinding assembly, the line being perpendicular to the stationary plate.
5. The laboratory screen integrated coal mill of claim 3, wherein the screen assembly further comprises a retaining sleeve mounted on the retaining plate and fitted over the outside of the screen.
6. The laboratory sieve-integrated coal mill according to claim 5, wherein the sieve assemblies are arranged in multiple groups in a stacked manner in sequence at the bottom of the box body, and a coal particle storage cavity is formed between two adjacent groups of sieve assemblies;
the sizes of the through grooves in the multiple groups of screening assemblies and the diameter of the shell structure are sequentially increased from the side close to the bottom of the box body to the side far away from the bottom of the box body, and the sizes of the sieve pores in the multiple groups of mesh screens are sequentially decreased from the side close to the bottom of the box body to the side far away from the bottom of the box body; one side of the plurality of groups of fixed sleeves far away from the bottom of the box body is on the same plane.
7. The laboratory screen integrated coal mill according to any one of claims 1 to 6, wherein the casing comprises a casing body provided with an inlet at the top, and a top cover for closing the inlet and extending into the casing body to abut against the fixing sleeve.
8. The laboratory sieve-integrated coal mill according to claim 7, wherein the top cover is externally threaded and is in threaded connection with the casing.
9. The coal mill integrated with the laboratory grinding screen according to any one of claims 1 to 6, wherein the coal grinding assembly comprises a crushing blade rotatably mounted in the coal grinding chamber, and a driving motor located outside the bottom of the box body and connected with the crushing blade in a transmission manner and extending into the box body.
10. The laboratory screen integrated coal mill of claim 9, wherein the axis of rotation of the crushing blade is collinear with the center of the coal grinding chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222066739.5U CN217830263U (en) | 2022-08-05 | 2022-08-05 | Coal mill integrating grinding and screening for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222066739.5U CN217830263U (en) | 2022-08-05 | 2022-08-05 | Coal mill integrating grinding and screening for laboratory |
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| Publication Number | Publication Date |
|---|---|
| CN217830263U true CN217830263U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222066739.5U Active CN217830263U (en) | 2022-08-05 | 2022-08-05 | Coal mill integrating grinding and screening for laboratory |
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| CN (1) | CN217830263U (en) |
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- 2022-08-05 CN CN202222066739.5U patent/CN217830263U/en active Active
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